How big is a 12 carat diamond?

The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.

What is a 24-carat diamond?

A 24-carat diamond is a precious diamond gemstone that weighs 24 carats. One carat weighs 200 milligrams, meaning a 24-carat diamond weighs roughly 4.8 grams. That equates to roughly 0.17 ounces. On 1stDibs, shop a variety of diamond jewelry.

Is there a three-carat diamond?

Yes, there are three-carat diamonds, and you can find them from a number of different jewelers and other retailers. Find an assortment of diamond jewelry from the world’s top sellers on 1stDibs.

How large is a 3-carat diamond?

In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.

What is a 7 carat diamond worth?

A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.

What is a 9 carat diamond worth?

A 9-carat diamond’s worth varies depending on the 4Cs of diamond quality — color, cut, clarity and carat. On average, a 9-carat diamond could cost you between $19,000 to $1,000,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 9-carat diamond jewelry from different periods and styles to choose from.

What is a 3 carat diamond worth?

A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.

What is 1 carat diamond worth?

Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.

What is a 4 carat diamond worth?

A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.

What is a 5 carat diamond worth?

A 5-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 5-carat diamond could cost you between $9,600 to $67,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 5-carat diamond jewelry.

What is a 6 carat diamond worth?

A 6-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 6-carat diamond could cost you between $15,000 to $80,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 6-carat diamond jewelry.

What is an 8 carat diamond worth?

An 8-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On an average an 8-carat diamond could cost you between $17,500 to $90,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 8-carat diamond jewelry from different periods and styles to choose from.

How many carats should a diamond necklace be?

There is no hard-and-fast rule for how many carats a diamond necklace should be. On average, solitaire diamond necklaces range from 0.5 to 1 carat, but you can find pieces with larger and smaller stones. Tennis chains that feature continuous diamonds set into links usually have much higher total carat weights. For example, one might feature 60 individual diamonds, each 0.20 carats in size, for a total carat weight of 12.0 carats. Shop a wide range of diamond necklaces on 1stDibs.

Is a 1.5-carat diamond too big?

Whether a 1.5-carat diamond is too big depends on the type of jewelry in question and your personal preferences. A single stud earring that is 1.5 carats is rather large and would cover the entire earlobe. In terms of rings, a 1.5-carat diamond is larger than average. Find a variety of diamond jewelry on 1stDibs.

Is a two-carat diamond rare?

Yes, a two-carat diamond is generally rarer than a smaller diamond, especially high-quality two-carat diamonds. When larger diamonds are found in nature, they usually have flaws. And prices per carat don’t increase as weight increases. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. Shop an assortment of diamond jewelry from some of the world’s top jewelers on 1stDibs.

How rare is a nine-carat diamond?

A nine-carat diamond is considered rare and holds a premium price. Because of their rarity and size, nine-carat diamonds are a coveted choice for engagement rings. One of the most famous nine-carat diamond rings belongs to actress Kate Hudson, who has a nine-carat emerald cut diamond complemented with tapered baguettes on a platinum band. Shop a selection of diamond jewelry on 1stDibs.

What is the value of a 25 carat diamond?

The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.

Are half-carat diamond studs too small?

Whether half-carat diamond studs are too small is a matter of personal opinion. A pair of diamond studs with a total carat weight of 0.5 usually consists of two 0.25-carat earrings. Many jewelry makers offer studs as small as 0.13 carats, so many people consider half-carat diamond studs to be medium-sized. On 1stDibs, shop a collection of antique and vintage diamond stud earrings.

Are 2 carat diamond studs too big?

Whether two-carat diamond studs are too big is a matter of personal preference. At this size, each earring will be one carat. If you opt for the classic round brilliant cut, the studs will typically measure around 6.5 millimeters in diameter, which is a little more than half the size of a dime. Find a wide range of diamond stud earrings on 1stDibs.

Are 1.3-carat diamond earrings too small?

Whether 1.3-carat diamond earrings are too small is a matter of personal opinion. A pair of earrings with a total carat weight of 1.3 is considered to be medium-sized. The smallest diamond earrings are around 0.25 carats, while the largest are 1.5 carats or more. Explore a wide range of diamond earrings on 1stDibs.

How much is a carat yellow diamond worth?

A 1-carat yellow diamond can cost anywhere from $6,500 to $8,500 depending on its quality. At roughly $3,500 per carat, a fancy light-yellow diamond is a good buy. The next level up is fancy yellow diamonds, which cost between $4,500 and $5,000 per carat. Shop a range of yellow diamond jewelry on 1stDibs today.

12 Carat Diamond

18k Gold Money Clip

Marquise Wedding Band

Open Bracelet

Rose Gold And Diamond Earrings

18k Gold And Diamond Bracelet

18mm South Sea Pearls

Pearl And Diamond Drop Earrings

Anniversary Bands

Category

2010s Brooches

Materials

Diamond, Platinum

12 Carat Diamond Broach in Platinum

Located in New York, NY

Gorgeous 12 carat diamond broach in platinum. The details are as follows : Diamond weight : 12

Category

2010s Brooches

Materials

Diamond, Platinum

12 Carat Diamond Broach in Platinum

12 Carat Diamond and Ruby Fashion Earrings

By Gems Paradise

Located in Jaipur, IN

Experience the epitome of luxury with our 12 Carat Diamond and Ruby Fashion Earrings. Each piece is

Category

2010s Indian Modern Drop Earrings

Materials

Diamond, Ruby, Silver

12 Carat Diamond and Ruby Fashion Earrings

Platinum 12 Carat Diamond One Line Tennis Princess and Emerald Cut Bracelet

Located in New York, NY

This is a beautiful Platinum 12 Carat Diamond One Line Tennis Princess And Emerald Cut Bracelet

Category

20th Century American Modern Tennis Bracelets

Materials

Diamond, Platinum

Platinum 12 Carat Diamond One Line Tennis Princess and Emerald Cut Bracelet

12 Carat Diamond Platinum Necklace

Located in Bay Harbor Islands, FL

12 carats. It is further set with a natural color yellow diamond weighing approximately 0.50 carats

Category

Vintage 1940s Unknown More Necklaces

Materials

Diamond, Yellow Diamond, Platinum

12 Carat Diamond Platinum Necklace

L 15.63 in

Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970

Located in Goettingen, DE

Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970 Very distinctive, floral bracelet

Category

Vintage 1970s Link Bracelets

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

Tanzanite and 12 Carat Diamond Bracelet in 18K Gold, circa 1970

W 0.71 in L 6.89 in

12 Carat Diamond Baguette Cluster Necklace

Located in Cape May, NJ

Cut Diamonds Total Carat Weight: Approximately 12 Carats Color/Clarity: H-J / VS2-SI2 Necklace Length

Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

12 Carat Diamond Baguette Cluster Necklace

South Sea Pearl Day & Night with 12 Carat Diamond Cocktail Earrings 18 K Gold

Located in New York, NY

South Sea Pearl Day & Night with 12 Carats Diamond Cocktail Earrings 18 K White Gold , Beautiful

Category

Early 20th Century Stud Earrings

Materials

Diamond, South Sea Pearl, 18k Gold

South Sea Pearl Day & Night with 12 Carat Diamond Cocktail Earrings 18 K Gold

.12 Carat Diamond Pearl White Gold Necklace

Located in Stamford, CT

1970's 8.5mm, 18-Inch cultured pearl necklace with double sided 18k white gold diamond catch

Category

Late 20th Century More Necklaces

Materials

Diamond, Pearl, Gold, 18k Gold, White Gold

.12 Carat Diamond Pearl White Gold Necklace

L 18 in

12 Carat Diamond White Gold 750 Necklace

Located in Lucerne, CH

313 brilliant cut diamonds totaling approx. 12 ct of G/H-vs quality. A brilliant piece! Please, ask

Category

21st Century and Contemporary Italian Contemporary More Necklaces

Materials

White Diamond, Diamond, 18k Gold, White Gold

12 Carat Diamond White Gold 750 Necklace

L 16.73 in

.12 Carat Diamond Rose Gold Wedding Band Ring

Located in Stamford, CT

full cut diamonds. 6 round full cut Diamonds, approx. total weight .12cts, G, VS2 Size 6.75 – sizable

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Gold, 14k Gold, Rose Gold

.12 Carat Diamond Rose Gold Wedding Band Ring

Cartier Art Deco 12 Carat Diamond Platinum Bracelet

By Cartier

Located in New York, NY

Exquisite Cartier circa 1930s, Art Deco platinum bracelet, with approximately 12 carats in diamonds

Category

20th Century French More Bracelets

Materials

Diamond, Platinum

Cartier Art Deco 12 Carat Diamond Platinum Bracelet

.12 Carat Diamond White Gold Open Heart Pendant Necklace

Located in Stamford, CT

Open heart diamond pendant necklace. 18k white gold open heart pendant with three floating diamonds

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

.12 Carat Diamond White Gold Open Heart Pendant Necklace

L 16 in

Belais .12 Carat Diamond Art Deco Gold Engagement Ring

Located in Stamford, CT

Belais diamond engagement ring. 18k white gold original Art Deco circa 1920s with highly detailed

Category

Early 20th Century Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Belais .12 Carat Diamond Art Deco Gold Engagement Ring

.12 Carat Diamond Pearl Rose Gold Star Brooch Pendant

Located in Stamford, CT

Turn of the century, Antique cushion cut diamond natural pearl brooch pendant. 1 old mine cut

Category

Early 20th Century Brooches

Materials

Diamond, Pearl, Gold, 14k Gold, Rose Gold

.12 Carat Diamond Pearl Rose Gold Star Brooch Pendant

L 1.3 in

.12 Carat Diamond Pearl Lady in Red Ladies Wristwatch

Located in Stamford, CT

movement. Bright red band. 20 cultured crème color pearls 2.1mm -2.8mm 6 single cut diamonds VS-SI G-H

Category

Mid-20th Century Wrist Watches

Materials

Diamond, Pearl, Cultured Pearl, Gold, 14k Gold, Yellow Gold

.12 Carat Diamond Pearl Lady in Red Ladies Wristwatch

White South Sea Pearl with 12 Carat Diamond Cocktail Earrings 18 Karat Gold

Located in New York, NY

South Sea Pearl with 12 Carat Diamond Cocktail Earrings 18 K Gold Beautiful estate piece The

Category

Early 20th Century Stud Earrings

Materials

Diamond, South Sea Pearl, 18k Gold

White South Sea Pearl with 12 Carat Diamond Cocktail Earrings 18 Karat Gold

Dm 0.56 in

.12 Carat Diamond Blue Enamel Yellow Gold Swirl Design Earrings

Located in Stamford, CT

Round diamond and blue enamel swirl design earrings in 18k yellow gold. 2 round brilliant cut

Category

Late 20th Century More Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Enamel

.12 Carat Diamond Blue Enamel Yellow Gold Swirl Design Earrings

GIA Certified .12 Carat Diamond Amethyst Pearl Art Nouveau Butterfly Brooch

Located in Stamford, CT

1910 Art Nouveau butterfly brooch. 18k yellow gold with silver tops set with 12 rose cut diamonds

Category

Early 20th Century Brooches

Materials

Amethyst, Diamond, Pearl, Gold, 18k Gold, Yellow Gold, Silver

GIA Certified .12 Carat Diamond Amethyst Pearl Art Nouveau Butterfly Brooch

12 Carat Diamond, Ruby, Emerald and Sapphire 18K White Gold Bracelet

Located in Miami, FL

Set in 18K White Gold and accented by roughly 12 total carats of matching Diamonds, Emeralds

Category

Late 20th Century Modern Modern Bracelets

Materials

Emerald, Blue Sapphire, Sapphire, Ruby, White Diamond, Diamond, White Go...

12 Carat Diamond, Ruby, Emerald and Sapphire 18K White Gold Bracelet

David Webb Platinum & 18K Yellow Gold 12 Carat Diamond Crescent Brooch

By David Webb

Located in New York, NY

. This lovely brooch is set with round cut diamonds of approx. 12 carats. Brooch measures 2.25 inches.

Category

20th Century American Modern Brooches

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

David Webb Platinum & 18K Yellow Gold 12 Carat Diamond Crescent Brooch

Vintage 12 Carat Diamond Flower Floral Earrings White Gold Portuguese 1990s

Located in Lisbon, PT

post and omega clip fitting. Diamonds: 436 stones (approximate counting); estimated 12 carats in total

Category

1990s Portuguese Modern Clip-on Earrings

Materials

Diamond, Gold, 18k Gold, White Gold

Vintage 12 Carat Diamond Flower Floral Earrings White Gold Portuguese 1990s

W 1.19 in L 1.19 in

1960s 12 Carat Diamond Cocktail Stud Earrings in 18 Karat White Gold

Located in New York, NY

prongs , weighing approximately 12 carat total set in 18 Karat white gold Clarity -VS2 Color G Size

Category

Vintage 1960s Stud Earrings

Materials

Diamond, 18k Gold

1960s 12 Carat Diamond Cocktail Stud Earrings in 18 Karat White Gold

L 1.2 in

Art Deco 12 Carat Diamond Studded Bracelet with Sapphires in White Gold

Located in Miami, FL

: 18k Stones: Diamonds, Sapphires Diamond Color: G – H Diamond Clarity: VVS Total Carat Weight: 12

Category

Vintage 1920s More Bracelets

Materials

Diamond, Sapphire, White Gold

Art Deco 12 Carat Diamond Studded Bracelet with Sapphires in White Gold

11 Carat Oval Tanzanite and 12 Carat Diamonds Necklace 18 Karat Gold Estate

Located in New York, NY

. There are total of approximately 13 carats of shimmering white diamonds, The clear, intense hue of

Category

20th Century Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold

11 Carat Oval Tanzanite and 12 Carat Diamonds Necklace 18 Karat Gold Estate

L 16 in

12 Carat Diamond Round Marquise Baguette 18 Karat Gold Vintage Classic Bracelet

Located in London, GB

Diamond Weight: 12 Carat 18 Karat White Gold

Category

21st Century and Contemporary British Modern Tennis Bracelets

Materials

Diamond, White Diamond, Gold, 18k Gold, White Gold

12 Carat Diamond Round Marquise Baguette 18 Karat Gold Vintage Classic Bracelet

L 7 in

18 Karat Adler Gèneva Clip, on Earrings 12 Carat, Diamonds Estate Sultan of Oman

By Adler

Located in Antwerp, BE

fit this Special Piece of Art ! Diamonds: Baguette & Taper cut diamonds together approx. 12 ct

Category

20th Century Swiss Artisan Clip-on Earrings

Materials

Diamond

18 Karat Adler Gèneva Clip, on Earrings 12 Carat, Diamonds Estate Sultan of Oman

W 1.03 in L 1.42 in

Gianni Lazzaro Emerald 10, 12 Carat Diamond 18K White Gold Brooch for Her for Him

By Natkina

Located in Montreux, CH

Brooch White Gold 18 K Gianni Lazzaro Diamonds 129-.1,74ct.Gvs Diamond 2-0,40 ct Emerald 49

Category

21st Century and Contemporary Swiss Modern Brooches

Materials

Diamond, Emerald, Gold, 18k Gold, White Gold

Gianni Lazzaro Emerald 10, 12 Carat Diamond 18K White Gold Brooch for Her for Him

Platinum Earrings with 12 Ct. Sapphires & 1.3 Ct Diamonds

Located in Antwerp, BE

, triangle cut : 12 Carats Diamonds: 22 brilliant cut diamonds together approx. 1.3 ct diamonds Material

Category

20th Century European Artisan Dangle Earrings

Materials

Diamond, Sapphire, Platinum

Platinum Earrings with 12 Ct. Sapphires & 1.3 Ct Diamonds

W 0.51 in D 0.15 in L 1.8 in

Aquamarine Diamond Halo Ring, 14 Karat White Gold, 1.29 Carat Aqua .12 Diamond

By Five Star Jewelry

Located in Austin, TX

Gold Diamond Carat Weight: .12 Carats Diamond Shape: Round Diamond Clarity: VS2 (Excellent, Eye Clean

Category

2010s American Modern Fashion Rings

Materials

Diamond, Aquamarine, White Gold, Gold, 14k Gold

Aquamarine Diamond Halo Ring, 14 Karat White Gold, 1.29 Carat Aqua .12 Diamond

Yellow Gold and Diamond Cuff Ring (Estate)

Located in Phoenix, AZ

This cuff ring is delicate and beautiful! With a vertical row of .12 carat diamonds, all set in 14k

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Yellow Gold

Yellow Gold and Diamond Cuff Ring (Estate)

12.00 Carat Round Brilliant F SI1 Diamond 18K Yellow Gold Hoop Earrings

Located in New York, NY

Yellow Gold Gemstone 1: 12 Carat Diamond Number of Stones: 82 Color: F Clarity: SI1 Shape: Round

Category

20th Century Hoop Earrings

Materials

Diamond, Yellow Gold

12.00 Carat Round Brilliant F SI1 Diamond 18K Yellow Gold Hoop Earrings

H 0.88 in W 0.28 in L 1.63 in

12.00 Carat Round Brilliant G VS1 Diamond 14 Karat White Gold Riviera Necklace

Located in New York, NY

: Riviera Metal: 14 Karat White Gold Gemstone 1: 12 Carat Diamond Number of Stones: 131 Color: G Clarity

Category

20th Century Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

12.00 Carat Round Brilliant G VS1 Diamond 14 Karat White Gold Riviera Necklace

H 0.14 in W 0.17 in L 17 in

5.39 carats Amethyst Tsavorite Diamond 14K Gold Pendant Necklace

By Meghna Jewels

Located in Hoffman Estate, IL

This pendant necklace is hand set in 14K gold, 5.39 carats amethyst, .43 carats tsavorite and .12

Category

21st Century and Contemporary Unknown Artisan Pendant Necklaces

Materials

Amethyst, Diamond, Tsavorite, 14k Gold

5.39 carats Amethyst Tsavorite Diamond 14K Gold Pendant Necklace

12 carats tennis bracelet 14KT white gold luxury bracelet

Located in Boca Raton, FL

12 carats diamond bracelet-192 diamonds and 60 grams, diamonds are VS-SI clarity and F-G color, the

Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, 14k Gold, White Gold

12 carats tennis bracelet 14KT white gold luxury bracelet

25.00 Carat Rose Cut J SI1 Diamond 18 Karat Yellow Gold Bangle Bracelet

Located in New York, NY

Metal: 18 Karat Yellow Gold Gemstone 1: 12 Carat Diamond Number of Stones: 64 Color: J Clarity

Category

20th Century Bangles

Materials

Diamond, 18k Gold

25.00 Carat Rose Cut J SI1 Diamond 18 Karat Yellow Gold Bangle Bracelet

W 0.87 in L 7 in

Mushroom Diamond 14k Gold White Enamel Pendant Necklace

By Meghna Jewels

Located in Hoffman Estate, IL

The mushroom pendant is hand set in 14K gold and .12 carat diamonds. FOLLOW MEGHNA JEWELS

Category

21st Century and Contemporary Unknown Modern Pendant Necklaces

Materials

Diamond, 14k Gold, Enamel

Mushroom Diamond 14k Gold White Enamel Pendant Necklace

Genuine Jade Ring, Yellow Gold, Genuine Jadeite Jade with Diamonds, Estate Ring

Located in Austin, TX

Diamond Total Weight: .12 Carat Diamond Quality: SI1 Clarity and H Color Gemstone: Jade Gemstone Shape

Category

Vintage 1980s American Contemporary Three-Stone Rings

Materials

Jade, Diamond, Yellow Gold, 14k Gold, Gold

Genuine Jade Ring, Yellow Gold, Genuine Jadeite Jade with Diamonds, Estate Ring

Diamond Platinum Gold Drop Hoop Earrings

By Steven Fox Jewelry

Located in Greenwich, CT

numbers are 6411975022 and 5222576879. Side diamond total weight .12 carats. Diamond drops are

Category

2010s American Modernist Drop Earrings

Materials

Diamond, Gold, 18k Gold, Platinum

Diamond Platinum Gold Drop Hoop Earrings

H 0.44 in Dm 0.44 in

Pave Diamond Earrings, Yellow Gold Oval Pave Studs, Diamond Studs

By Five Star Jewelry

Located in Austin, TX

6.05 millimeters Clasp Type: Posts Diamond Total Weight: .12 Carats Diamond Clarity: SI 1(excellent

Category

2010s American Modern Stud Earrings

Materials

Diamond, White Diamond, Gold, 14k Gold, Yellow Gold

Pave Diamond Earrings, Yellow Gold Oval Pave Studs, Diamond Studs

Diamond Emerald Band, Yellow Gold Wedding Ring, Green Emeralds and White Diamond

By Five Star Jewelry

Located in Austin, TX

Diamond Number: 7 Diamond Shape: Round Average Diamond Diameter: 1.8 millimeters Diamond Carat Weight: .12

Category

21st Century and Contemporary American Contemporary Band Rings

Materials

White Diamond, Emerald, Diamond, Yellow Gold, 14k Gold

Diamond Emerald Band, Yellow Gold Wedding Ring, Green Emeralds and White Diamond

Diamond Cluster Ring, 14 Karat Yellow Gold Gabriel Bubble Ring Band, LR5649Y45JJ

By Gabriel & Co.

Located in Austin, TX

Weight: .12 Carats Diamond Shape: Round Diamond Clarity: S1 1 Diamond Color: H-I Band Width: 4

Category

2010s American Modern Cluster Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Diamond Cluster Ring, 14 Karat Yellow Gold Gabriel Bubble Ring Band, LR5649Y45JJ

South Sea Pearl Diamond Drop Earrings 0.60 Carats 12-13 MM 18K White Gold

By Harbor Diamonds

Located in New York, NY

White Gold 18k Pearl Size: 12-13mm Nature: South Sea Cultured Pearl Pearl Quality: AAA Nacre: Very

Category

2010s American Contemporary More Earrings

Materials

South Sea Pearl, Diamond, 18k Gold, White Gold

South Sea Pearl Diamond Drop Earrings 0.60 Carats 12-13 MM 18K White Gold

Diamond Heart Necklace, 14K Yellow Gold Pave Diamond Open Heart, NK5452Y45JJ

By Gabriel & Co.

Located in Austin, TX

: Open Heart Diamond Shape: Round Diamond Total Weight: .12 Carats Diamond Clarity: SI-2 Diamond Color: G

Category

2010s American Modern Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Diamond Heart Necklace, 14K Yellow Gold Pave Diamond Open Heart, NK5452Y45JJ

L 18 in

Tahitian Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM

By Harbor Diamonds

Located in New York, NY

18 Karat White Gold drop earrings featuring 38 round brilliants weighing 0.61 carats with two

Category

2010s Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Tahitian Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM

W 0.45 in L 0.88 in

18 Karat White Gold South Sea & Tahitian Pearl Diamond Lariat 0.61 Carats 12-13M

By Harbor Diamonds

Located in New York, NY

with a diamond cap weighing 0.11 carats and 29 Baguette diamonds weighing 0.50 carats. Can customize in

Category

2010s Contemporary Drop Necklaces

Materials

Diamond, Pearl, White Gold

18 Karat White Gold South Sea & Tahitian Pearl Diamond Lariat 0.61 Carats 12-13M

Diamond Bezel Tahitian Drop Dangle Earrings 0.34 Carats 11-12 MM 18KT White Gold

By Harbor Diamonds

Located in New York, NY

18 Karat white gold drop earrings featuring 22 round brilliants weighing 0.34 carats and two

Category

2010s Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Diamond Bezel Tahitian Drop Dangle Earrings 0.34 Carats 11-12 MM 18KT White Gold

L 1.63 in

Diamond Cluster Floral Tahitian Pearl Drop Earrings 1.03 Carat 18 Karat 12-13 MM

By Harbor Diamonds

Located in New York, NY

18 Karat White Gold drop earrings featuring a floral diamond cluster weighing 1.03 Carats with two

Category

2010s Contemporary Drop Earrings

Materials

Diamond, Pearl, 18k Gold, White Gold

Diamond Cluster Floral Tahitian Pearl Drop Earrings 1.03 Carat 18 Karat 12-13 MM

L 0.88 in

Pink Freshwater Pearl Diamond Drop Earrings 0.45 Carats 11-12 MM 18KT Rose Gold

By Harbor Diamonds

Located in New York, NY

18 Karat rose gold drop earrings featuring 28 round brilliants weighing 0.45 carats and two Pink

Category

2010s Contemporary Drop Earrings

Materials

Diamond, Freshwater Pearl, 18k Gold, Rose Gold

Pink Freshwater Pearl Diamond Drop Earrings 0.45 Carats 11-12 MM 18KT Rose Gold

Deco Diamond Drop Tahitian Earrings 0.72 Carats 18 Karat White Gold 11-12 MM

By Harbor Diamonds

Located in New York, NY

Deco inspired drop earrings featuring 84 round brilliants weighing 0.72 carats with two Tahitian

Category

2010s Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Deco Diamond Drop Tahitian Earrings 0.72 Carats 18 Karat White Gold 11-12 MM

L 2 in

Double Halo Diamond Freshwater Pearl Drop Earrings 0.32 Carats 12-13 MM 18 KT

By Harbor Diamonds

Located in New York, NY

weighing a total of 0.32 carats and two Freshwater Pearls 12-13 MM.

Category

2010s Contemporary Drop Earrings

Materials

Diamond, Freshwater Pearl, 18k Gold, White Gold

Double Halo Diamond Freshwater Pearl Drop Earrings 0.32 Carats 12-13 MM 18 KT

L 0.75 in

Platinum South Sea Pearl Diamond Cluster Drop Earrings 12 Carats G-H SI 15 MM

By Harbor Diamonds

Located in New York, NY

brilliants weighing approximately 12 carats with two removeable South Sea Pearls measuring 15 MM, crafted in

Category

2010s Contemporary Drop Earrings

Materials

Diamond, Platinum

Platinum South Sea Pearl Diamond Cluster Drop Earrings 12 Carats G-H SI 15 MM

L 1.75 in

Diamond Drop Swirl Earrings 2 Carats G VS2 18 Karat White Gold 12 Grams

By Harbor Diamonds

Located in New York, NY

Diamond swirl earrings featuring 84 round brilliants weighing 2 carats, in 18 Karat White Gold

Category

2010s Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Diamond Drop Swirl Earrings 2 Carats G VS2 18 Karat White Gold 12 Grams

W 0.6 in L 1.2 in

South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat Yellow Gold 12-13MM

By Harbor Diamonds

Located in New York, NY

18 Karat Yellow Gold drop earrings featuring 38 round brilliants weighing 0.61 carats and two South

Category

2010s Contemporary Drop Earrings

Materials

Diamond, South Sea Pearl, 18k Gold, Yellow Gold

South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat Yellow Gold 12-13MM

W 0.45 in L 0.88 in

South Sea Pearl Diamond Open Bangle Bracelet 11-12 MM 0.06 Carats 18K Gold

By Harbor Diamonds

Located in New York, NY

18K Yellow gold open bracelet featuring one South Sea Pearl measuring 11-12 mm and one diamond

Category

21st Century and Contemporary American Contemporary Bangles

Materials

Diamond, South Sea Pearl, 18k Gold

South Sea Pearl Diamond Open Bangle Bracelet 11-12 MM 0.06 Carats 18K Gold

Pink Freshwater Pearl Diamond Drop Earrings 0.61 Carats 18KT Rose Gold 12-13 MM

By Harbor Diamonds

Located in New York, NY

18K Rose gold drop earrings featuring two pink Freshwater pearls measuring 12-13 mm and 38 round

Category

2010s American Contemporary Drop Earrings

Materials

Diamond, Freshwater Pearl, Rose Gold

Pink Freshwater Pearl Diamond Drop Earrings 0.61 Carats 18KT Rose Gold 12-13 MM

L 0.94 in

Tahitian Pearl Diamond Bangle Bracelet 0.12 Carats 11-12 MM 18 Karat White Gold

By Harbor Diamonds

Located in New York, NY

18 Karat white gold bangle bracelet featuring 32 round brilliants weighing 0.12 carats and one grey

Category

2010s American Contemporary Bangles

Materials

Diamond, Pearl, Cultured Pearl, 18k Gold, White Gold

Tahitian Pearl Diamond Bangle Bracelet 0.12 Carats 11-12 MM 18 Karat White Gold

Tahitian Pearl Diamond Drop Bar Earrings 0.63 Carat 18 Karat White Gold 12-13 MM

By Harbor Diamonds

Located in New York, NY

18K White gold drop earrings featuring two Tahitian pearls measuring 12-13 mm with a diamond bar

Category

2010s Contemporary Drop Earrings

Materials

Diamond, Pearl, 18k Gold, White Gold

Tahitian Pearl Diamond Drop Bar Earrings 0.63 Carat 18 Karat White Gold 12-13 MM

L 2.13 in

18 Karat White Gold Diamond South Sea Open Bangle Cuff 0.40 Carats 12-13 MM

By Harbor Diamonds

Located in New York, NY

18 Karat White gold open cuff bangle featuring one South Sea Pearl measuring 12-13 MM and a diamond

Category

2010s Contemporary Cuff Bracelets

Materials

Diamond, 18k Gold, White Gold

18 Karat White Gold Diamond South Sea Open Bangle Cuff 0.40 Carats 12-13 MM

Dm 2.38 in

South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM

By Harbor Diamonds

Located in New York, NY

18 Karat White Gold drop earrings featuring 38 round brilliants weighing 0.61 carats and two South

Category

2010s Contemporary Drop Earrings

Materials

Diamond, South Sea Pearl, 18k Gold, White Gold

South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM

L 0.88 in

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12 Carat Diamond For Sale on 1stDibs

You are likely to find exactly the 12 carat diamond you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. Find an antique version now, or shop for 542 vintage or 1208 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 12 carat diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. There have been many well-made iterations of the classic 12 carat diamond over the years, but those made by LB Exclusive, Luigi Ferrara and Harbor Diamonds are often thought to be among the most beautiful. A 12 carat diamond can be a stylish choice for most occasions, but Diamond rings, from our inventory of 1407, can add a particularly distinctive touch to your look, day or night. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and emerald cut cut versions available here, too. Most of our 12 carat diamond for sale are for women, but there are 425 pieces available to browse for men.

How Much is a 12 Carat Diamond?

Prices for a 12 carat diamond can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $99 and can go as high as $2,699,999, while this accessory, on average, fetches $8,298.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings.

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.

Questions About 12 Carat Diamond

How big is a 12 carat diamond?
1 Answer
1stDibs ExpertFebruary 22, 2021
The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.
What is a 24-carat diamond?
1 Answer
1stDibs ExpertMarch 22, 2022
A 24-carat diamond is a precious diamond gemstone that weighs 24 carats. One carat weighs 200 milligrams, meaning a 24-carat diamond weighs roughly 4.8 grams. That equates to roughly 0.17 ounces. On 1stDibs, shop a variety of diamond jewelry.
Is there a three-carat diamond?
1 Answer
1stDibs ExpertApril 5, 2022
Yes, there are three-carat diamonds, and you can find them from a number of different jewelers and other retailers. Find an assortment of diamond jewelry from the world’s top sellers on 1stDibs.
How large is a 3-carat diamond?
1 Answer
1stDibs ExpertFebruary 27, 2024
In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
What is a 7 carat diamond worth?
1 Answer
1stDibs ExpertAugust 17, 2021
A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.
What is a 9 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
A 9-carat diamond’s worth varies depending on the 4Cs of diamond quality — color, cut, clarity and carat. On average, a 9-carat diamond could cost you between $19,000 to $1,000,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 9-carat diamond jewelry from different periods and styles to choose from.
What is a 3 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.
What is 1 carat diamond worth?
1 Answer
1stDibs ExpertFebruary 22, 2021
Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
What is a 4 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.
What is a 5 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
A 5-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 5-carat diamond could cost you between $9,600 to $67,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 5-carat diamond jewelry.
What is a 6 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
A 6-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 6-carat diamond could cost you between $15,000 to $80,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 6-carat diamond jewelry.
What is an 8 carat diamond worth?
1 Answer
1stDibs ExpertSeptember 28, 2021
An 8-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On an average an 8-carat diamond could cost you between $17,500 to $90,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 8-carat diamond jewelry from different periods and styles to choose from.
How many carats should a diamond necklace be?
1 Answer
1stDibs ExpertNovember 6, 2023
There is no hard-and-fast rule for how many carats a diamond necklace should be. On average, solitaire diamond necklaces range from 0.5 to 1 carat, but you can find pieces with larger and smaller stones. Tennis chains that feature continuous diamonds set into links usually have much higher total carat weights. For example, one might feature 60 individual diamonds, each 0.20 carats in size, for a total carat weight of 12.0 carats. Shop a wide range of diamond necklaces on 1stDibs.
Is a 1.5-carat diamond too big?
1 Answer
1stDibs ExpertFebruary 27, 2024
Whether a 1.5-carat diamond is too big depends on the type of jewelry in question and your personal preferences. A single stud earring that is 1.5 carats is rather large and would cover the entire earlobe. In terms of rings, a 1.5-carat diamond is larger than average. Find a variety of diamond jewelry on 1stDibs.
Is a two-carat diamond rare?
1 Answer
1stDibs ExpertFebruary 13, 2023
Yes, a two-carat diamond is generally rarer than a smaller diamond, especially high-quality two-carat diamonds. When larger diamonds are found in nature, they usually have flaws. And prices per carat don’t increase as weight increases. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. Shop an assortment of diamond jewelry from some of the world’s top jewelers on 1stDibs.
How rare is a nine-carat diamond?
1 Answer
1stDibs ExpertApril 5, 2022
A nine-carat diamond is considered rare and holds a premium price. Because of their rarity and size, nine-carat diamonds are a coveted choice for engagement rings. One of the most famous nine-carat diamond rings belongs to actress Kate Hudson, who has a nine-carat emerald cut diamond complemented with tapered baguettes on a platinum band. Shop a selection of diamond jewelry on 1stDibs.
What is the value of a 25 carat diamond?
1 Answer
1stDibs ExpertSeptember 28, 2021
The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.
Are half-carat diamond studs too small?
1 Answer
1stDibs ExpertNovember 27, 2023
Whether half-carat diamond studs are too small is a matter of personal opinion. A pair of diamond studs with a total carat weight of 0.5 usually consists of two 0.25-carat earrings. Many jewelry makers offer studs as small as 0.13 carats, so many people consider half-carat diamond studs to be medium-sized. On 1stDibs, shop a collection of antique and vintage diamond stud earrings.
Are 2 carat diamond studs too big?
1 Answer
1stDibs ExpertNovember 1, 2023
Whether two-carat diamond studs are too big is a matter of personal preference. At this size, each earring will be one carat. If you opt for the classic round brilliant cut, the studs will typically measure around 6.5 millimeters in diameter, which is a little more than half the size of a dime. Find a wide range of diamond stud earrings on 1stDibs.
Are 1.3-carat diamond earrings too small?
1 Answer
1stDibs ExpertNovember 8, 2023
Whether 1.3-carat diamond earrings are too small is a matter of personal opinion. A pair of earrings with a total carat weight of 1.3 is considered to be medium-sized. The smallest diamond earrings are around 0.25 carats, while the largest are 1.5 carats or more. Explore a wide range of diamond earrings on 1stDibs.
How much is a carat yellow diamond worth?
1 Answer
1stDibs ExpertOctober 12, 2021
A 1-carat yellow diamond can cost anywhere from $6,500 to $8,500 depending on its quality. At roughly $3,500 per carat, a fancy light-yellow diamond is a good buy. The next level up is fancy yellow diamonds, which cost between $4,500 and $5,000 per carat. Shop a range of yellow diamond jewelry on 1stDibs today.