Skip to main content

Two Carat Diamond

to
493
3,034
539
2,473
1,178
963
336
319
313
103
96
84
75
68
64
60
58
54
46
43
42
40
37
12
8
4
4
2
1
1
1
1
1
1
1
1
1
103
76
52
37
37
Sort By
Sacchi Cuff Ruby Diamonds Gemstone 18 Karat Yellow and White Gold
By Sacchi Gioielli
Located in Rome, IT
). Diamonds n° and Weight: Two main Diamonds plus forty-two smallest Diamonds, 0.52 Carats (Total Weight). 18
Category

21st Century and Contemporary Italian Contemporary Cuff Bracelets

Materials

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

Sunita Nahata Aquamarine 3.20ct. Fancy Ring in 14K White Gold with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
aquamarine ring in 14K white gold with diamonds. Aquamarine: 3.28 carat oval shape, two pieces, 9x7mm
Category

21st Century and Contemporary Thai Contemporary Fashion Rings

Materials

Aquamarine, Diamond, White Diamond, Black Diamond, Gold, 14k Gold, White...

Sunita Nahata Aquamarine 3.20ct. Fancy Ring in 14K White Gold with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
aquamarine ring in 14K white gold with diamonds. Aquamarine: 3.28 carat oval shape, two pieces, 9x7mm
Category

21st Century and Contemporary Thai Contemporary Engagement Rings

Materials

Aquamarine, Diamond, White Diamond, Black Diamond, Gold, 14k Gold, White...

Sacchi Ruby and Diamonds Gemstone 18 Karat Yellow Gold Pendant Necklace
By Sacchi Gioielli
Located in Rome, IT
: Nine Rubies, 0.95 Carat (Total Weight). Diamonds n° and Weight: Seventy-two Diamonds, 1.02 Carats
Category

21st Century and Contemporary Italian Contemporary Pendant Necklaces

Materials

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

Alexander Beverly Hills 5.11ct Pear Fancy Instence Pink Diamond Earrings 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
. High jewelry by Alexander Beverly Hills. 5.11 carats total diamond weight. Two pear shape diamonds 4.02
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Diamond, White Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, White Gold

Diamond Ring 14K White Gold Vintage Estate 2.20 TDW Marquise
By Estate Jewelry
Located in East Brunswick, NJ
are .25 carat each, two more - .18 carat each, and two princess cut diamonds total .10 carat. The
Category

20th Century Cluster Rings

Materials

Diamond, 14k Gold, White Gold

"Magma" collection Cocktail ring - Oval Ruby and Diamonds on 18K Yellow Gold
By Sacchi Gioielli
Located in Rome, IT
10 gr, a 0.8 carat oval ruby ​​is set in the center, two 0.1 carat round white diamonds highlight it
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

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

Sacchi Black and White Diamonds Gemstone 18 Karat Yellow Gold Modern Bracelet
By Sacchi Gioielli
Located in Rome, IT
. Handmade in Italy (Rome). Diamonds n° and weight: Thirty-two 0.01 Carat each Round White Diamonds and five
Category

21st Century and Contemporary Italian Contemporary Modern Bracelets

Materials

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

Alexander Beverly Hills GIA 9.05ct Fancy Intense Yellow Diamond Stud Earrings
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
the mounting 9.68 carats total diamond weight. Two matching Radiant diamonds 9.05 carats total, both
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

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

Princess Trillion Diamond Engagement Ring 14K White Gold 1.95 TDW
By Estate Jewelry
Located in East Brunswick, NJ
inside of the shank. The center .65 carat princess cut diamond is G color and S1 clarity. Two
Category

Late 20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Belle Époque Diamond Drop Earrings
Located in London, GB
total carat weight of 3 carats with the two largest diamonds at approximately 0.3 carats each. Crafted
Category

Early 20th Century Belle Époque Drop Earrings

Materials

Diamond, Platinum

Old mine Diamond Ring 14K White Gold Art Deco Three stones 1.30 TDW
By Estate Jewelry
Located in East Brunswick, NJ
). Three old mine cut diamonds total 1.30 carats; the center diamond is .50 carat and two diamonds are .40
Category

Early 20th Century Art Deco Three-Stone Rings

Materials

Diamond, 14k Gold, White Gold

Alexander Beverly Hills GIA 3.35ct Fancy Yellow Diamond Stud Earrings 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Beverly Hills. 3.82 carats total diamond weight. Two matching cushion diamonds 3.35 carats total, both GIA
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

Diamond Ring 14K Gold Flower Vintage by Haco 1.45 TDW
By Estate Jewelry
Located in East Brunswick, NJ
round brilliant cut diamond is .15 carat, and two diamonds on the bottom are .25 carat each. These gems
Category

20th Century Cocktail Rings

Materials

Diamond, 14k Gold, White Gold

1.90tcw 14K Round Cut Diamond by The Yard Chain Necklace White Gold Layering
Located in Jupiter, FL
. Almost two carats in diamonds, and set in 14K white gold. The perfect, everyday, stacking necklace
Category

2010s Modern Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

18K Yellow Gold Three-Stone Oval Diamond Ring with Fancy Yellow Accents
Located in Los Angeles, CA
a breathtaking 2.05-carat center oval diamond, flanked by two matching ovals totaling 0.68 carats
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Trilogy Engagement Ring 1.36 ct Diamond Center with Side Diamonds, 18K gold
Located in SAINT-OUEN-SUR-SEINE, FR
1.36 carats (color G, clarity SI2), framed by two side diamonds totaling 0.37 carats. The white gold
Category

1990s French Art Deco Engagement Rings

Materials

Diamond, 18k Gold

Swiss Modern Diamond Earrings
Located in Litchfield, CT
Circa 1980s, 18k, Swiss. Set with 8.50 carats of fine white diamonds (G color, VS clarity), these
Category

Vintage 1980s Swiss Modernist Clip-on Earrings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Diamond Ring 18K White Gold Band 2.00 cts TDW Three Emerald cut
By Estate Jewelry
Located in East Brunswick, NJ
.70 Carat (6x4.75mm). Two diamond baguettes total .50 carat (4x3mm). The diamonds are IF clarity and F
Category

20th Century Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

14K White Gold Diamond Ring 0.75ct
Located in Laguna Beach, CA
center diamond is a round brilliant cut, .75 carats, H, i, j color, Vs clarity. There are two side
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Three Stone O.22 Square Cushion Yellow Trillion White Diamond 14k Yellow Ring
Located in San Francisco, CA
This 14k delicate ring features a 0.22 Carat Square Cushion yellow diamond flanked by two 0.14
Category

21st Century and Contemporary American Three-Stone Rings

Materials

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

Diamond Ring Solitaire with Accents Vintage 18K Gold Band 1.08 TDW
By Estate Jewelry
Located in East Brunswick, NJ
1.00 carat of VS1 clarity and IJ color. Two sides diamonds add .04 carat of VS1 clarity and H color
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

0.58 Carat Emerald Yellow Gold 18K Ring
Located in Geneva, CH
Emerald and Diamond Yellow Gold 18K Ring. Centered by an Emerald of 0.58 carat and two diamonds
Category

21st Century and Contemporary Fashion Rings

Materials

Emerald, 18k Gold, Yellow Gold

Diamond Sapphire Ring Platinum Band Engagement
By Estate Jewelry
Located in East Brunswick, NJ
and strong brilliance. Two emerald cut diamonds total .50 carat and two tapered diamonds total .12
Category

20th Century Band Rings

Materials

Diamond, Sapphire, Platinum

Diamond Gold Coiled Stretch Bracelet
Located in Beverly Hills, CA
This remarkable bracelet features two larger diamonds, a 0.92 carat pear shape diamond and a 0.87
Category

21st Century and Contemporary More Bracelets

Materials

Diamond, White Diamond, 18k Gold, White Gold

GIA-Certified 4.00 TCW Round Diamond Solitaire Stud Earrings in 18K White Gold
Located in Jaipur, RJ
solitaire studs showcase two exceptional 2.00-carat diamonds (totaling 4.00 carats) with VS clarity and G
Category

2010s Indian Art Deco Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Art Deco Diamond Drop Earrings France
Located in Litchfield, CT
Circa 1920s, 18k and Platinum, France. The two brilliant white .95 carat diamonds make this pair of
Category

Vintage 1920s French Art Deco Drop Earrings

Materials

Diamond, 18k Gold, Platinum

Mens Natural Diamond Ring 14K Gold Vintage .45 Tdw Three Stones
By Estate Jewelry
Located in East Brunswick, NJ
. Two side diamonds add .20 carat to the total weight. The total diamond weight is .45 carat of VS2
Category

Late 20th Century Band Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

Sapphire Diamond Platinum Engagement Ring
Located in Los Angeles, CA
blue sapphire weighing approximately 1.11 carats. DIAMONDS: two tapered baguettes totaling
Category

Vintage 1950s Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

5.22 Carat Cat’s-Eye Chrysoberyl Ring
By Pampillonia
Located in Bethesda, MD
with two diamonds weighing .46 carats. The eye opens a closes cleanly, slightly included.
Category

21st Century and Contemporary American Dome Rings

Materials

Chrysoberyl, Platinum

1.86ct F VS2 Marquise Diamond Ring GIA
Located in Litchfield, CT
ring also features two baguette diamonds totaling .20 carats. Well made, it is in excellent condition
Category

Vintage 1960s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified Diamond Tennis Necklace
By Issac Nussbaum
Located in New York, NY
just two prongs for each stone resulting in the full visual effect of the entire diamond . On the neck
Category

2010s North American Modern Choker Necklaces

Materials

Diamond

Topaz Diamond Pendant Chain Necklace
Located in Geneva, CH
centerpiece features a resplendent topaz weighing 3.62 carats, showcasing a captivating play of color. Two
Category

Late 20th Century Drop Necklaces

Materials

Diamond, Topaz, 18k Gold, Yellow Gold

Art Deco 22.20ct Diamond Bracelet, c.1920s
Located in London, GB
sit two 0.80 carat and two 0.70 carat old cut diamonds, rub over set. Each old cut cut is then
Category

Vintage 1920s British Art Deco Retro Bracelets

Materials

Diamond, Platinum

14k Yellow Gold Emerald Diamond Cluster Ring
Located in New York, NY
two center diamonds weighing 0.19 carats. Weighing 7.86 grams and designed in a size 7, this ring is
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

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

Edwardian Three-Stone Diamond Ring
Located in Hummelstown, PA
lively 1.15 carat old mine cut diamond accented by two .35 carat shimmering old cut diamonds perfectly
Category

Antique Early 1900s Edwardian Engagement Rings

Materials

Diamond, Platinum

18K White Gold Yellow Diamond Stud Earrings
Located in Great Neck, NY
earrings include two yellow diamonds totaling 0.66 carats. These stones shine with a warm golden glow that
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, Yellow Diamond, 18k Gold, White Gold

Tiffany Co. Soleste Stud Diamonds Earrings in Platinum
By Tiffany Co.
Located in New York, NY
Mint condition Platinum with diamonds Two round brilliant center diamonds, carat total weight .30
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Platinum

Tiffany Co. Soleste Stud Diamonds Earrings in Platinum
By Tiffany Co.
Located in New York, NY
Mint condition Platinum with diamonds Two round brilliant center diamonds, carat total weight .30
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Platinum

Tiffany Co. Soleste Stud Diamonds Earrings in Platinum
By Tiffany Co.
Located in New York, NY
Mint condition Platinum with diamonds Two round brilliant center diamonds, carat total weight .30
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Platinum

Raised Platform "Predicta" Ring with Pavé Diamond Grid in Rose Gold Mounting
Located in Sherman Oaks, CA
seen from the sides. The diamonds on top are about 1.5mm (0.01 carats) each. The two secret diamonds
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, White Diamond, 14k Gold, Rose Gold, Gold

Antique yellow and white diamond ring
Located in Uccle, BE
approximately 0.75 Carats, two old oval shape diamonds for a total of approximately 0.45 Carats and 22 old
Category

Vintage 1920s Art Deco Engagement Rings

Materials

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

Vintage Diamond Ring with Sapphire Accents
Located in Scottsdale, AZ
platinum ring showcases two white diamonds totaling 1.12 carats, accented by blue sapphires weighing 0.5
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Tiffany Co. 1.44ct Diamond Stud Earrings
By Tiffany Co.
Located in London, GB
This pair of classic Tiffany & Co. earrings featuring two beautiful diamonds weighing 0.72 carat a
Category

21st Century and Contemporary European Modern Stud Earrings

Materials

Diamond, Platinum

Ruby and Diamond Intertwined Snake Rose Gold Ring
By Bracken Jewelers
Located in Santa Monica, CA
estate piece from the 1900s. - Two rubies total 0.27 carats - Two diamonds total 0.16 carats - Crafted
Category

2010s Unknown Fashion Rings

Materials

Diamond, Ruby, Gold, 18k Gold, Rose Gold

Contemporary 3.50ct Yellow Diamond Trilogy Ring
Located in London, GB
collet. Flanking the central stone are two 0.50 carat trillion-cut diamonds. The pair match in quality at
Category

21st Century and Contemporary Unknown Modern Solitaire Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold, Platinum

Sophia D. 4.28 Carat Madagascar Pink Sapphire Ring
By Sophia D
Located in New York, NY
Certificate Flanking Stones: Two Trapezoid Diamonds, 0.56 Carats each Additional Diamond: 0.40 Carats Metal
Category

2010s Fashion Rings

Materials

Pink Sapphire

Three-Row Diamond Cocktail Ring
Located in New York, NY
. Two rows of round diamonds, weighing a total of approximately 2.40 carats, with G-H color and VS
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Platinum

14K White Gold Diamond Wedding Ring Set 1.54ct
Located in Laguna Beach, CA
center diamond is a .50 carat round brilliant cut, H color, I1 clarity. The two side diamonds are .25
Category

Mid-20th Century Wedding Rings

Materials

Diamond, 14k Gold, White Gold

10K White Gold Three-Diamond Ring 0.65ct
Located in Laguna Beach, CA
diamond is .30 carats, and two smaller side diamonds, .65 total carats, H to i color, Si to i1 clarity
Category

Late 20th Century Three-Stone Rings

Materials

Diamond, 10k Gold, White Gold

Yellow Gold Emerald Diamond Ring
Located in Palm Desert, CA
cut emeralds have a carat total weight of 0.80ctw. The twenty-two round diamonds has a carat total
Category

1990s Unknown Contemporary Cocktail Rings

Materials

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

Emerald Cut Aquamarine Ring (Approx 6.30-Carats) Emeralds Halo, Platinum
Located in New York, NY
weight of approximately 0.80 carats. Two baguette-cut diamonds flank the aquamarine, adding crisp
Category

2010s Art Deco Cocktail Rings

Materials

Aquamarine, Emerald, Platinum

Victorian 1.10ct Diamond Five Stone Ring, c.1880s
Located in London, GB
cut diamonds. The central stone weighs 0.45 carat, with two 0.25 carat diamonds flanking and smaller
Category

Antique 1880s Unknown Victorian Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

Vintage 3.00ct Diamond and Ruby Target Earrings, c.1950s
Located in London, GB
Dating to the 1950s, this impressive pair of target earrings centre around two 1.50 carat, round
Category

Vintage 1950s Unknown Stud Earrings

Materials

Diamond, Ruby, Platinum

Edwardian 1.50ct Diamond Five Stone Ring, c.1910s
Located in London, GB
the largest weighing 0.50 carat, the two flanking stones are 0.30 carat, with the two end diamonds
Category

Vintage 1910s British Edwardian Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Edwardian 2.10ct Diamond Five Stone Ring, c.1910s
Located in London, GB
the largest weighing 0700 carat, the two flanking stones are 0.45 carat, with the two end diamonds
Category

Vintage 1910s British Edwardian Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Edwardian Turquoise and Diamond Ring
Located in Hummelstown, PA
, lovely matrix on the back Diamonds: 14 single-cut diamonds estimated .50 total carats, two old mine-cut
Category

Early 20th Century Unknown Cocktail Rings

Materials

Diamond, Turquoise, 14k Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "Two Carat Diamond", and we’ll notify you when there are new listings in this category.

Two Carat Diamond For Sale on 1stDibs

Find the exact two carat diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and white gold. Find an antique version now, or shop for 22410 vintage or 20867 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a two 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. There have been many well-made iterations of the classic two carat diamond over the years, but those made by LB Exclusive, Tiffany Co. and Cartier are often thought to be among the most beautiful. 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. There aren’t many items for men if you’re seeking a two carat diamond, as most of the options available are for women and unisex.

How Much is a Two Carat Diamond?

The price for a two carat diamond starts at $1 and tops out at $6,500,000 with these rings, on average, selling for $5,584.

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.  

Questions About Two Carat Diamond
  • 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.
  • 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.
  • 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.
  • 1stDibs ExpertOctober 12, 2021
    A two-tone ring is a ring constituted of two different metals. The most common combinations are gold and platinum. However, a two-tone ring can feature any combination of yellow, rose, or white gold. Shop a range of antique and vintage two-tone diamond rings on 1stDibs.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 1stDibs ExpertFebruary 22, 2021
    Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
  • 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.
  • 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.
  • 1stDibs ExpertAugust 24, 2021
    A 2 carat oval diamond is approximately 10.23mm × 6.82mm × 4.16mm in size. These diamonds usually have an approximate face-up area of 57.21 mm². Find a variety of diamonds on 1stDibs.
  • 1stDibs ExpertNovember 2, 2023
    There is no rule for how many carats a diamond wedding ring should be. You're free to choose a ring with a carat weight that appeals to you and fits your budget. The average carat weight for diamond wedding rings is 1 to 1.9 carats. Shop an assortment of diamond wedding rings on 1stDibs.