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18k Gold Diamond Brooch

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Merrin Platinum and 18K Gold Diamond Brooch
By Merrin
Located in Great Neck Plaza, NY
Merrin Platinum and 18K Gold Diamond Brooch 8.52 carats total
Category

Vintage 1970s French Brooches

Materials

Diamond, 18k Gold, Platinum

Cartier, 18K Gold Diamond Brooch
By Cartier
Located in New York, NY
This Cartier brooch is inspired by the vivid, natural shape of a leaf, showcasing exquisite 18K
Category

Vintage 1960s Brooches

Materials

Diamond, 18k Gold

Edwardian Platinum 18K Gold Diamond Brooch
Located in New York, NY
Circa 1900-1905. Old-mine diamonds total approx. 9.75ct, rose-cut diamonds. With original box
Category

Antique Early 1900s Brooches

Materials

Diamond, 18k Gold, Platinum

Van Cleef & Arpels, 18K Gold Diamond Brooch
By Van Cleef & Arpels
Located in New York, NY
. With a total of approximately 3ct of diamonds, this brooch is perfect for both daily wear and special
Category

Vintage 1960s Brooches

Materials

Diamond, 18k Gold

Oscar Heyman, 18K Gold Diamond Brooch, Certificate
By Oscar Heyman
Located in New York, NY
full-cut diamonds total approx. 8.22ct, G-I/VS. With Oscar Heyman Certificate.
Category

Vintage 1960s Brooches

Materials

Diamond

Van Cleef & Arpels, 18K Gold Diamond Brooch and Earrings
By Van Cleef & Arpels
Located in New York, NY
This VCA set includes a brooch and two earrings. They depict the beautiful scenes of flowers. They
Category

Vintage 1960s Brooches

Materials

Diamond, 18k Gold

18k Gold Diamonds Retro Brooch
Located in Lake Worth, FL
Vintage 18K Gold Diamonds Brooch French Retro style elegant artistic statement brooch from the
Category

Vintage 1950s French Retro Brooches

Materials

Diamond, 18k Gold

Van Cleef & Arpels, 18K Gold Diamond Knot Brooch
By Van Cleef & Arpels
Located in New York, NY
This exquisite 18K gold diamond brooch from Van Cleef & Arpels features fluid, graceful lines
Category

Vintage 1960s Brooches

Materials

Diamond, 18k Gold

Vintage Brooch 18 K Yellow Gold Diamonds Mabe Pearl
Located in Zurich, Zollstrasse
Attractive 18 K yellow Gold brooch set with 1 Mabe Pearl and brilliant cut Diamonds and 4 Marquise
Category

Vintage 1980s Swiss Contemporary Brooches

Materials

Diamond, Pearl, 18k Gold, Yellow Gold

Vintage Brooch Citrine Diamonds 18 K white Gold ca 1950
Located in Zurich, Zollstrasse
one of a kind rare brooch has been crafted in solid 18 K white Gold with high polished finish and
Category

Vintage 1950s European Contemporary Brooches

Materials

Citrine, Diamond, 18k Gold, White Gold

18 K white Gold Flower South Sea Pearl Diamond Brooch
Located in Zurich, Zollstrasse
This is a Diamond Vintage Brooch, meticulously crafted in 18 K white Gold and adorned with an array
Category

2010s Unknown Contemporary Brooches

Materials

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

1960 18 K white Gold cluster Vintage Ruby Diamonds Brooch
Located in Zurich, Zollstrasse
A stunning, fine and impressive 18 K white Gold cluster brooch from the 1960 set with 10 Rubies
Category

Vintage 1960s Unknown Contemporary Brooches

Materials

Diamond, Ruby, 18k Gold

18 K Vintage Amethyst Diamond Brooch Stockholm 1949
Located in Zurich, Zollstrasse
Pretty, openworked 18 K white Gold brooch set with one octagonal Amethyst weighing approximately 14
Category

Vintage 1940s Swedish Post-War Brooches

Materials

Amethyst, Diamond, 18k Gold, White Gold

18 K yellow and white Gold 1960 Vintage Emerald Diamond Brooch
Located in Zurich, Zollstrasse
pin is hand-crafted in solid 18 K yellow and white Gold. Featuring a gorgeous stylized flower with
Category

Vintage 1960s Unknown Retro Brooches

Materials

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

18 K rose Gold openwork Dragonfly brooch pink Sapphire Tsavorite Diamond Pearl
Located in Zurich, Zollstrasse
Nouveau. Made in warm 18 K rose Gold it is featuring an oval vivid green Tsavorite weighing 0.37 ct, 1
Category

2010s Swiss Art Nouveau Brooches

Materials

Diamond, Pearl, Pink Sapphire, Tsavorite, 18k Gold, Rose Gold

Vintage Mid-Century Ballerina Dancer brooch 18 K Gold Ruby Sapphire Diamond
Located in Munich, Bavaria
out of 18 karat yellow gold and silver. The artist is dancing with a rope that is set entirely with
Category

Vintage 1940s Unknown Post-War Brooches

Materials

Sapphire, Ruby, Diamond, Silver, 18k Gold, Gold

18 K Gold Filigree and Milgrain Art Deco Style Ruby Diamonds Brooch/Pendant
Located in Zurich, Zollstrasse
Very attractive new 18 K white Gold brooch/pendant inspired by the glamorous Art Deco era featuring
Category

2010s Unknown Art Deco Brooches

Materials

Diamond, Ruby, Gold, 18k Gold

Estate Ruby Sapphire Emerald Diamond & Pearl 18 K Gold Flower Basket Brooch/ pin
Located in New York, NY
Estate Ruby Sapphire Emerald Diamond & Pearl 18 K Gold Flower Basket Brooch/ pin 18k Yellow gold
Category

2010s Brooches

Materials

Diamond, Emerald, Pearl, Ruby, Sapphire, 18k Gold, Gold

18 K White Gold Spray Brooch or Pendant Tahitian Pearls Colored Stones Diamonds
Located in Zurich, Zollstrasse
18 K white Gold. It can also be worn as a pendant. WEIGHT 24.22 grams SIZE 8.2 cm x 4.30 cm
Category

2010s Unknown Contemporary Brooches

Materials

Diamond, Pearl, 18k Gold, White Gold

18 k solid gold stick pin - rose cut diamond clover - Antique Victorian brooch
Located in Antwerp, BE
For sale is this stunning Victorian clover pin. This lovely antique 18 karat pinkish gold gold pin
Category

Antique 1890s European Victorian Brooches

Materials

Diamond, Gold, 18k Gold, Rose Gold

18 K yellow Gold bee brooch golden South Sea Pearl Diamond Emerald Ruby
Located in Zurich, Zollstrasse
of a ca 15mm golden South SeaPearl. The brooch is made in 18 K yellow Gold and measures approx. 32 mm
Category

2010s Swiss Contemporary Brooches

Materials

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

18 K white Gold bee brooch South Sea Pearl Diamond Rubyfancy Sapphire Tsavorite
Located in Zurich, Zollstrasse
Tsavorites. The body consists of a ca 16mm white South SeaPearl. The brooch is made in 18 K white Gold and
Category

2010s Swiss Contemporary Brooches

Materials

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

Vintage 2.55 Ct Diamond Bow Brooch Pin /Pendant in 18 K White Gold
Located in New York, NY
A bow brooch / Pendant crafted in 18 Karat white gold and densely set with sparkling bright white
Category

Early 2000s Brooches

Materials

Diamond, 18k Gold, White Gold

18K Gold Diamond Flower Brooch
Located in New York, NY
This dazzling diamond brooch is a masterpiece of craftsmanship, resembling a blooming flower in
Category

Late 20th Century Brooches

Materials

Diamond, 18k Gold

18k Gold Opal Diamond Brooch
Located in Montreal, QC
18k yellow gold , opal gemstone and 15 genuine diamond brooch. Unmarked, tested 18k, 40mm long x
Category

Vintage 1950s Unknown Brooches

Materials

Diamond, Opal, 18k Gold

Diamond 18k Gold Spray Brooch
Located in Summerland, CA
Lovely spray of diamonds. 18k white gold with 22 full cut diamonds and 19 single cut diamonds
Category

Vintage 1940s Brooches

Materials

Diamond, 18k Gold

Diamond 18k Gold Spray Brooch
Diamond 18k Gold Spray Brooch
W 1 in D 0.5 in L 3 in
Elegant 18 K White Gold Brooch Diamond Akoya Pearls circa 1970 by Meister Zurich
Located in Zurich, Zollstrasse
Very elegant 1970s 18 K white Gold brooch set with 7 fine cultured Akoya pearls and 33 brilliant
Category

Vintage 1970s Swiss Contemporary Brooches

Materials

Diamond, Pearl, 18k Gold, White Gold

18K Gold Diamond Flower Brooch
Located in New York, NY
Round brilliant-cut diamonds total approx. 5.55ct, G-H/VS. Measurement: 9.5 x 5.7 cm Weight: 71.9
Category

20th Century Brooches

Materials

Diamond, 18k Gold

18 K Gold Bar Pin Brooch with Baguette Diamonds and Sapphire and Ruby Cabochon
Located in Zurich, Zollstrasse
Elegant 18 K yellow and white Gold bar pin brooch set with a heart shaped Sapphire Cabochon and and
Category

Vintage 1980s German Contemporary Brooches

Materials

Diamond, Ruby, Sapphire, 18k Gold, Yellow Gold, Gold

18K Gold Pearl Diamond Brooch
Located in New York, NY
The brooch is circa 1950, composed of cultured pearls and a line of brilliant and baguette-cut
Category

Mid-20th Century Brooches

Materials

Pearl, Diamond, 18k Gold

Elegant Vintage 18 K Yellow Gold Brooch Meister Emerald Ruby Sapphire Diamond
Located in Zurich, Zollstrasse
Very elegant floral stlye brooch in 18 K yellow Gold made by internationally well-known swiss
Category

20th Century Swiss Contemporary Brooches

Materials

Diamond, Emerald, Ruby, Sapphire

Rare Victorian brooch - 18 K Yellow gold Queen Bee set with rose cut diamond
Located in Antwerp, BE
For sale is this stunning Bee brooch. This 18 ct yellow gold beauty is most likely crafted in the
Category

Antique Late 19th Century French Victorian Brooches

Materials

Diamond, Sapphire, Gold, 18k Gold, Yellow Gold, Silver

Diamond 18k White Gold Brooch
Located in Surfside, FL
Fireworks of Baguette, marquise & round brilliant cut diamonds brooch in 18k white gold. Baguette
Category

21st Century and Contemporary Brooches

Materials

18k Gold, White Gold

American Flag Brooch Diamond Ruby Sapphire 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
American flag brooch featuring Ruby, Sapphire and Diamonds crafted in 18 Karat White gold. Larger
Category

2010s Contemporary Brooches

Materials

Diamond, Ruby, Sapphire, 18k Gold, White Gold

18k Yellow Gold Diamond Flower Brooch
Located in Lexington, KY
This stunning flower brooch is made in 18k yellow gold and is full of diamonds. The negative space
Category

Vintage 1980s Contemporary Brooches

Materials

Diamond, Gold, 18k Gold, Yellow Gold

18K Gold Coral Chrysoprase Diamond Brooch
Located in New York, NY
This brooch is crafted in 18k gold. It consists of 2 Marquise-cut diamonds and 66 cabochon-cut
Category

Vintage 1960s Brooches

Materials

Coral, Diamond, 18k Gold

18K White Gold Diamond Leaf Brooch
Located in New York, NY
This elegant brooch features a leaf design set with 23 baguette and tapered baguette diamonds
Category

Mid-20th Century Brooches

Materials

Diamond, 18k Gold, White Gold

Diamond and 18k White Gold Brooch
Located in London, GB
Diamond and 18k White Gold Brooch from circa 1930-50s. There are 108 diamonds, 59 brilliant cut
Category

Mid-20th Century Brooches

Materials

Diamond, 18k Gold, White Gold

18K White gold Diamond Butterfly Brooch
By La Fleur Jewels
Located in Bangkok, TH
Diamond butterfly brooch .A cute butterfly that the wing can move use diamond 5.44 ct H Vs quality
Category

21st Century and Contemporary Brooches

Materials

Diamond, 18k Gold

18k Yellow Gold Diamond Flower Brooch
Located in Bergamo, BG
are fully covered by us. -------------------- A delicate floral brooch crafted in 18k yellow gold
Category

21st Century and Contemporary Italian Brooches

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Diamond 18k Yellow Gold Owl Brooch
Located in Beverly Hills, CA
A contemporary owl brooch featuring approximately 0.39 carats of round brilliant-cut white diamonds
Category

21st Century and Contemporary American Contemporary Brooches

Materials

Diamond, 18k Gold, Yellow Gold

Diamond White Gold 18K Brooch
Located in Geneva, CH
Indulge in the timeless allure of our Diamond 18K White Gold Brooch. A masterpiece of
Category

Late 20th Century European Brooches

Materials

Diamond, White Gold

Cartier, 18K Gold Diamond Flower Brooch
By Cartier
Located in New York, NY
This Cartier brooch consists of 10 pear shape diamonds total approx. 2.5ct, 163 round brilliant-cut
Category

Vintage 1960s Brooches

Materials

Diamond, 18k Gold

Ruby Diamond Yellow Gold 18K Brooch
Located in Geneva, CH
Introducing our Ruby Diamond Yellow Gold 18K Arrow Brooch—a symbol of striking elegance and
Category

Late 20th Century European Brooches

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

18K Yellow Gold Sunflower Diamond Brooch
By Valentin Magro
Located in New York, NY
White diamonds and gold combine to produce a brilliant glow to this brooch. 18k yellow gold
Category

2010s American Brooches

Materials

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

18K Yellow Gold Sunflower Diamond Brooch
18K Yellow Gold Sunflower Diamond Brooch
W 2.3 in D 0.75 in L 2.3 in
18K Yellow Gold Owl Diamond Brooch
Located in New York, NY
This exquisite estate diamond owl brooch, crafted in France, beautifully captures the elegance and
Category

20th Century French Modern Brooches

Materials

Diamond, 18k Gold, Yellow Gold

Butterfly Diamond Sapphire Gold 18k Brooch
Located in Geneva, CH
Butterfly Brooch 18K gold blacken set with diamonds and yellow and blue sapphires (treated). Height
Category

Late 20th Century Aesthetic Movement Brooches

Materials

Diamond, Sapphire, Gold, 18k Gold

Diamond 18k Yellow Gold Bee Brooch
Located in New York, NY
diamonds, approximately F-G color, VS clarity, and flanked with intricately engraved gold wings. Two pop
Category

21st Century and Contemporary Italian Contemporary Brooches

Materials

Diamond, 18k Gold, Yellow Gold

Contemporary 18k Gold Diamond "Leaf" Brooch
Located in New York, NY
Introducing an enchanting 18k White Gold Diamond "Leaf" Brooch, a creation that beautifully
Category

21st Century and Contemporary American Contemporary Brooches

Materials

White Diamond, 18k Gold, White Gold

Modernist 18k Gold .20ct Diamond Brooch
Located in Montreal, QC
Modernist 18k Gold .20ct Diamond brooch pin with ivory color design. Measures 2 inches x 1 7/8
Category

Mid-20th Century Modernist Brooches

Materials

Diamond, 18k Gold

18K Gold Ruby Diamond Leaf Brooch
Located in New York, NY
Round diamonds total approx. 2.3ct, G-H/VS. Square-cut ruby.
Category

Late 20th Century Brooches

Materials

Diamond, Ruby, 18k Gold

18K Gold Diamond Spider Brooch-Pendant
Located in Beverly Hills, CA
carats of round brilliant-cut diamonds. The spider is made in 18k gold which has been rhodium plated to
Category

21st Century and Contemporary American Brooches

Materials

Diamond, 18k Gold, Rhodium

18k Yellow Gold Ruby Diamond Brooch
Located in New York, NY
18 Karat Gold, Ruby, and Diamond Brooch is a testament to luxury and craftsmanship. This
Category

21st Century and Contemporary American Contemporary Brooches

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Diamond bow 18k white gold brooch
Located in Surfside, FL
Diamond bow brooch in 18k white gold with a 1 carat center rose cut diamond and 3 carats of accent
Category

21st Century and Contemporary Brooches

Materials

18k Gold, White Gold

GILIN 18K Yellow Gold Diamond Brooch
By GILIN
Located in Central, HK
GILIN 18K Yellow Gold Diamond Brooch Diamonds symbolise clarity and purity, also represent
Category

2010s Hong Kong Modern Brooches

Materials

18k Gold, Yellow Gold

18K Yellow Gold 1.10ct Diamond Floral Brooch
By LB Exclusive
Located in Southampton, PA
Add a touch of luxury to any scarf, hat, or lapel with this enchanting brooch. Textured 18K Yellow
Category

21st Century and Contemporary Brooches

Materials

Diamond, 18k Gold, Yellow Gold

Cartier 18k Yellow Gold Diamond Elephant Brooch
By Cartier
Located in New York, NY
Cartier 18K Yellow Gold Diamond Elephant Brooch. Crafted in 18K yellow gold mounted with round cut
Category

20th Century French Modern Brooches

Materials

Diamond, 18k Gold, Yellow Gold

Certified 6.25 Carats Diamonds 18K Gold Brooch
Located in Massafra, IT
jewelry designer. Brooch come in 18K gold with over 383 pieces of Natural Diamonds in baguettes and round
Category

21st Century and Contemporary Brooches

Materials

Diamond, 18k Gold

Platinum 18K Gold Diamond Double-clip Brooch
Located in New York, NY
This double-clip brooch is crafted from PT and 18K gold, showcasing an extraordinary design that
Category

2010s Brooches

Materials

Diamond, 18k Gold, Platinum

David Webb, 18K Gold Diamond Flower Brooch
By David Webb
Located in New York, NY
This David Webb diamond flower brooch showcases ultimate luxury and craftsmanship, with delicate
Category

Late 20th Century Brooches

Materials

Diamond, 18k Gold, Platinum

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18k Gold Diamond Brooch For Sale on 1stDibs

Surely you’ll find the exact 18k gold diamond brooch you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Making the right choice when shopping for a 18k gold diamond brooch 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. Creating a 18k gold diamond brooch has been a part of the legacy of many jewelers, but those produced by Van Cleef & Arpels, Tiffany & Co. and Cartier are consistently popular. A round cut version of this piece has appeal, but there are also brilliant cut and old european cut versions for sale. If you’re browsing our inventory for a 18k gold diamond brooch, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 18k Gold Diamond Brooch?

The price for a 18k gold diamond brooch starts at $100 and tops out at $985,000 with these brooches, on average, selling for $6,014.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

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 ringsvintage engagement rings or Art Deco engagement rings

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

Finding the Right Brooches for You

Vintage brooches, which refer to decorative jewelry traditionally pinned to garments and used to fasten pieces of clothing together where needed, have seen increasing popularity in recent years.

While jewelry trends come and go, brooches are indeed back on the radar thanks to fashion houses like GucciVersaceDior and Saint Laurent, all of which feature fun pinnable designs in their current collections. Whether a dazzlingly naturalistic Art Nouveau dragonfly, a whimsical David Webb animal, a gem-studded bloom or a streamlined abstract design, these jewels add color and sparkle to your look and a spring to your step. 

Given their long history, brooches have expectedly taken on a variety of different shapes and forms over time, with jewelers turning to assorted methods of ornamentation for these accessories, including enameling and the integration of pearls and gemstones. Cameo brooches that originated during the Victorian age are characterized by a shell carved in raised relief that feature portraits of a woman’s profile, while 19th-century micromosaic brooches, comprising innumerable individually placed glass fragments, sometimes feature miniature depictions of a pastoral scene in daily Roman life.

At one time, brooches were symbols of wealth, made primarily from the finest metals and showcasing exquisite precious gemstones. Today, these jewels are inclusive and universal, and you don’t have to travel very far to find an admirer of brooches. They can be richly geometric in form, such as the ornate diamond pins dating from the Art Deco era, or designer-specific, such as the celebrated naturalistic works created by Tiffany & Co., the milk glass and gold confections crafted by Trifari or handmade vintage Chanel brooches of silk or laminated sheer fabric. Chanel, of course, has never abandoned this style, producing gorgeously baroque CC examples since the 1980s.

Brooches are versatile and adaptable. These decorative accessories can be worn in your hair, on hats, scarves and on the lower point of V-neck clothing. Pin a dazzling brooch to the lapel of your blazer-and-tee combo or add a cluster of smaller pins to your overcoat. And while brooches have their place in “mourning jewelry,” in that a mourning brooch is representative of your connection to a lost loved one, they’re widely seen as romantic and symbolic of love, so much so that a hardcore brooch enthusiast might advocate for brooches to be worn over the heart.

Today, find a wide variety of antique and vintage brooches for sale on 1stDibs, including gold brooches, sapphire brooches and more.

Questions About 18k Gold Diamond Brooch
  • 1stDibs ExpertApril 5, 2022
    18K green gold is an alloy created by mixing silver, copper and zinc with normal gold. 18K green gold is greener than 14K green gold. On 1stDibs, shop a wide collection of genuine 18K green gold from some of the world's top sellers.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k is the perfect karatage for jewelry. While 24k is more prized and typically more expensive, it is also less dense and durable than 18k gold.
  • 1stDibs ExpertApril 5, 2022
    Yes, 18K gold is real gold. However, it is not pure gold. Something marked 18K is 75 percent genuine gold and 25 percent metal alloy. On 1stDibs, shop a range of expertly vetted gold jewelry from some of the world’s top sellers.
  • 1stDibs ExpertApril 5, 2022
    Whether or not 18K gold wears off depends on how it's made. The finish will not wear off of a piece of jewelry or another object made entirely out of 18K gold. However, wear can occur on pieces that feature 18K gold plating, a thin layer of gold applied over another type of metal. You'll find a large selection of gold jewelry and decorative objects on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    An 18K gold watch is a timepiece made from gold precious metal of a specific purity. The term 18K means 18-karat, a precious metal that is 75 percent pure gold and 25 percent alloy. Shop a large collection of gold watches on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    18K Italy gold is 18-karat gold produced in Italy. Karats tell you how much of a piece of metal is genuine gold. In the case of 18-karat gold, 18 parts are pure gold, and six parts are other metals. This makes 18-karat pieces 75 percent gold. You'll find a large collection of gold jewelry on 1stDibs.
  • 1stDibs ExpertAugust 26, 2024
    The difference between 24K gold and 18K gold is how much pure gold the metals contain. Something made of 24-karat gold is 99.9% pure gold, while 18-karat gold items are 75% gold and 25% alloy metals. Generally, 18-karat gold is more durable and scratch-resistant due to the presence of alloy metals. On the other hand, 24-karat gold tends to be more richly colored and expensive. On 1stDibs, find a wide range of gold jewelry.
  • 1stDibs ExpertApril 5, 2022
    Yes, gold dipped, also known as gold plated, pieces are considered real gold. The process coats a piece of metal or alloy with a layer of gold for a gold finish. Shop a collection of 18 karat gold jewelry, solid and dipped, on 1stDibs.
  • 1stDibs ExpertAugust 29, 2024
    Yes, 18K 750 is real gold. Gold pieces that bear this hallmark are 18-karat gold, a 75% pure gold alloy and 25% base metal. One of the most popular materials for fine jewelry, 18-karat gold shows off a rich yellow, white or rose color and resists scratching more readily than pure gold. Explore a wide variety of 18-karat gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k gold can tarnish, but it is uncommon. Pure gold does not combine easily with oxygen and therefore does not tarnish. The higher the karat, the less likely a piece of gold will tarnish.
  • 1stDibs ExpertMarch 22, 2022
    Yes, 18-karat gold can turn green in some circumstances. This type of gold is about 75 percent genuine gold and 25 percent alloy, and the other metal or metals used to produce it may react negatively to acidic substances. When this occurs, 18-karat gold may take on a greenish hue. On 1stDibs, shop a large selection of gold jewelry.
  • 1stDibs ExpertOctober 12, 2021
    The difference between 14k and 18k rose gold metal is that the 14k rose gold is less pure than 18k. 14k rose gold has a deeper pink color because of greater amounts of copper, whereas 18k rose gold has 75% gold and appears yellow. 14k rose gold is increasingly popular due to its brighter pink hue and resistance to scratches. On 1stDibs, shop a range of vintage rose gold jewelry.
  • 1stDibs ExpertSeptember 16, 2024
    Yes, many people believe that 18k gold is worth buying. Due to the metal's durability, jewelry produced from 18-karat gold is often resistant to scratching and damage. In addition, the large amount of pure gold in the alloy gives white, rose and yellow 18-karat gold a vibrant color. However, whether or not it’s worth investing in 18-karat gold is totally subjective! At 1stDibs, we believe in buying what you love. Our shopping experience enables discovery and learning, whether you are a seasoned connoisseur or just beginning your collection. Find a diverse range of gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 26, 2024
    On a watch, 18K gold means that the watch features genuine gold. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The high gold content gives the metal an attractive color, while the alloy metals add strength to increase its durability. An 18-karat gold watch may be solid gold or gold-filled, which means it is primarily another metal that the watchmaker finished with a thin layer of 18-karat gold. On 1stDibs, find a large selection of gold watches.
  • 1stDibs ExpertDecember 5, 2024
    Many watch lovers believe that 18K gold is good for watches. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The amount of gold makes the color of the alloy, whether it's white, yellow or rose, rich and visually appealing. At the same time, the addition of alloy metals increases the strength of the gold material. Explore a large selection of watches on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    A piece of jewelry or a decorative object marked 18K gold plated does likely contain real gold. The marking indicates that the item is metal under a layer of gold alloy that contains 75 percent gold and 25 percent other metal. On 1stDibs, shop a collection of expertly vetted gold jewelry.
  • 1stDibs ExpertOctober 30, 2024
    How much your 18K gold chain is worth depends on several factors. As a material, 18-karat gold typically fetches a higher price than 14-karat and 10-karat gold on the scrap market because it contains more pure gold. When selling a piece for scrap, the length, thickness and weight of your chain will determine how much you can expect to receive for it. It's also possible that your chain may be worth more than the going scrap rate due to its style, maker, age and other characteristics. Consequently, you may wish to have a certified appraiser or knowledgeable jeweler evaluate your jewelry before you sell it. On 1stDibs, shop a wide range of gold chains.
  • 1stDibs ExpertNovember 1, 2023
    The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.
  • 1stDibs ExpertFebruary 22, 2021
    The price of gold per gram fluctuates with the market for gold. Today, 18k gold is worth roughly $44 per gram.