Rare Carat Diamonds
2010s Tennis Bracelets
Yellow Diamond, 18k Gold
2010s Cocktail Rings
Diamond, 18k Gold
2010s Three-Stone Rings
Diamond, 18k Gold, Platinum
2010s Tennis Bracelets
Diamond
2010s Cocktail Rings
Diamond, Pink Diamond, Rose Gold, Platinum
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold
2010s Tennis Bracelets
Diamond, 18k Gold
2010s Cocktail Rings
Diamond, Pink Diamond, 18k Gold
2010s Three-Stone Rings
Diamond
2010s Link Necklaces
Diamond, Blue Diamond, Yellow Diamond, Pink Diamond, 18k Gold
2010s Three-Stone Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Stud Earrings
Diamond, 18k Gold
2010s Engagement Rings
Diamond, 18k Gold, Platinum
2010s Three-Stone Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Cocktail Rings
Diamond, 18k Gold
2010s Engagement Rings
Yellow Diamond, 18k Gold
2010s Drop Earrings
Diamond, Yellow Diamond, Emerald, Platinum
2010s Solitaire Rings
Diamond, Pink Diamond, Platinum
2010s Engagement Rings
Diamond, Platinum
2010s Tennis Bracelets
Diamond, Yellow Diamond, 18k Gold
2010s Bridal Rings
Blue Diamond, Rose Gold, Platinum
2010s Cocktail Rings
Diamond, White Diamond, Pink Diamond, 18k Gold, Platinum
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Three-Stone Rings
Diamond, Emerald, 18k Gold, Platinum
2010s Pendant Necklaces
Yellow Diamond, Diamond, 18k Gold
2010s American Cocktail Rings
Pink Diamond, Platinum
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Engagement Rings
Diamond, 18k Gold, Platinum
2010s American Three-Stone Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s American Three-Stone Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
21st Century and Contemporary Pendant Necklaces
Diamond, Tanzanite, White Diamond, 18k Gold
2010s Dangle Earrings
Yellow Diamond, Diamond, Yellow Gold, Platinum, 18k Gold
2010s Cocktail Rings
Blue Diamond, Pink Diamond, Rose Gold
2010s More Bracelets
Yellow Diamond, 18k Gold
2010s Three-Stone Rings
Yellow Diamond, Yellow Gold, Platinum
2010s Pendant Necklaces
Diamond, Pink Diamond, Rose Gold
2010s Pendant Necklaces
Diamond, Yellow Diamond, 14k Gold
21st Century and Contemporary Engagement Rings
Diamond, White Diamond
2010s Cocktail Rings
Diamond
2010s Loose Gemstones
Diamond, Pink Diamond
2010s Stud Earrings
Pink Diamond, 18k Gold
2010s Three-Stone Rings
Blue Diamond, Pink Diamond, Rose Gold, Platinum
2010s Tennis Bracelets
White Diamond, Yellow Diamond, 18k Gold
2010s Stud Earrings
White Diamond, Pink Diamond, 18k Gold
2010s Pendant Necklaces
White Diamond, Pink Diamond, 18k Gold
2010s American Stud Earrings
Diamond, Pink Diamond, 18k Gold
2010s Three-Stone Rings
Diamond, Yellow Diamond, Rose Gold, Platinum
2010s Tennis Bracelets
White Diamond, Yellow Diamond, 18k Gold
2010s Drop Earrings
Diamond, Pink Diamond, Rose Gold
2010s Cocktail Rings
Diamond, Pink Diamond, 18k Gold
2010s Pendant Necklaces
Diamond, Rose Gold, Platinum
2010s American Modern Pendant Necklaces
Diamond, Yellow Diamond, 18k Gold
2010s Drop Earrings
Diamond, Yellow Diamond, Pink Diamond, 18k Gold
2010s Pendant Necklaces
Diamond, Rose Gold, Platinum
2010s American Modern Pendant Necklaces
Pink Diamond, 18k Gold
2010s Three-Stone Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Band Rings
Pink Diamond, Rose Gold
2010s Stud Earrings
Yellow Diamond, 18k Gold
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
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Rare Carat Diamonds For Sale on 1stDibs
How Much are Rare Carat Diamonds?
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.
- 1stDibs ExpertApril 5, 2022A 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.
- Is a two-carat diamond rare?1 Answer1stDibs ExpertFebruary 13, 2023Yes, 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.
- 1stDibs ExpertApril 5, 2022Argyle pink diamonds are generally thought of as very rare. This is because pink diamonds account for less than 1 percent of the diamonds mined from the area in Western Australia. You'll find a collection of Argyle pink diamond gemstone jewelry on 1stDibs.
- 1stDibs ExpertJune 15, 2023Vivid yellow diamonds are extremely rare. In fact, only one out of every 10,000 carats of diamonds mined is yellow. However, yellow is the most common type of colored diamond, accounting for 60% of all colored diamonds. On 1stDibs, find an assortment of yellow diamond jewelry.
- Is there a three-carat diamond?1 Answer1stDibs ExpertApril 5, 2022Yes, 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.
- What is a 24-carat diamond?1 Answer1stDibs ExpertMarch 22, 2022A 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.
- How big is a 12 carat diamond?1 Answer1stDibs ExpertFebruary 22, 2021The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.
- How large is a 3-carat diamond?1 Answer1stDibs ExpertFebruary 27, 2024In 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 1 carat diamond worth?1 Answer1stDibs ExpertFebruary 22, 2021Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
- What is a 7 carat diamond worth?1 Answer1stDibs ExpertAugust 17, 2021A 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 Answer1stDibs ExpertSeptember 28, 2021A 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 Answer1stDibs ExpertSeptember 28, 2021A 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.
- Is a 1.5-carat diamond too big?1 Answer1stDibs ExpertFebruary 27, 2024Whether 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.
- 1stDibs ExpertNovember 6, 2023There 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.
- 1stDibs ExpertSeptember 28, 2021The 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.
- 1stDibs ExpertSeptember 28, 2021An 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.
- What is a 4 carat diamond worth?1 Answer1stDibs ExpertSeptember 28, 2021A 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 6 carat diamond worth?1 Answer1stDibs ExpertSeptember 28, 2021A 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 a 5 carat diamond worth?1 Answer1stDibs ExpertSeptember 28, 2021A 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.
- 1stDibs ExpertOctober 12, 2021A 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.