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Blue Diamond 2 Carat

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GIA 8.20 Carat Certified Blue Sapphire 2.13 Carat White Diamond Platinum Ring
By Hasbani Diamonds
Located in London, GB
This Spectacular GIA Certified 8.20 Carat Octagonal Step Cut Transparent Blue Colored Sapphire in
Category

2010s British Modern Engagement Rings

Materials

White Diamond, Diamond, Blue Sapphire, Platinum

1.6 Carat Cushion Cut Blue Sapphire Ring with 0.63 Carat Natural Diamond ref1364
By Diamond Town
Located in New York, NY
elegance to this piece. Center: 1.60 carats cushion cut blue sapphire 2 pear shape diamonds total 0.15
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Blue Sapphire, 18k Gold, White Gold

2.51 Carat Oval Blue Sapphire Round Diamond Hasbani 18Kt Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
: 1.50 Carat Diamond 1.00 Carat (total weight 10 stones) Band Width: 2 mm Head Width: 13x15mm British
Category

2010s British Modern Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Gold, 18k Gold, White Gold

2.49 Carat Oval Blue Sapphire Round Diamond Hasbani 18Kt Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
Sapphire: 1.95 Carat Diamond: 0.54 Carat (total weight 12 stones) Band Width: 2 mm Head Width: 13x12mm
Category

2010s British Modern Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Gold, 18k Gold, White Gold

3.46 Carat Oval Blue Sapphire Round Diamond Hasbani 18Kt Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
. Sapphire & Diamond Ring 3.46 Total Gem Weight 18 Karat Gold Blue Sapphire: 2.47 Carat Diamond 0.99 Carat
Category

2010s British Modern Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Gold, 18k Gold, White Gold

1.56 Carats Blue Sapphire And 1.30 Carats Diamond 2 Stone Ring
By Iris Fine Jewelry
Located in New York, NY
. This exquisite piece features a heated blue sapphire weighing 1.56 carats and a round brilliant diamond
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Blue Sapphire, Diamond, Platinum

GIA Certified 2.60 Carat Cushion Cut Blue Sapphire and Diamond Halo Ring ref471
By Diamond Town
Located in New York, NY
weight of 0.82 carats, comprising 10 round natural diamonds totaling 0.57 carats and 2 baguette natural
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold

4.37 Carat Blue Sapphire Diamond Rose Cut 18 KT Yellow Gold Artisan Ring
By Hasbani Diamonds
Located in London, GB
This Gorgeous bespoke 4.25 Carat Blue Sapphire ring from the Artisan Collection features 0.12 Carat
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Rose Go...

GIA Certified 2 Carat Blue Sapphire Art Deco Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
. Highlights: - Substantial 2 carat size diamond center - GIA certified - Very Good cut - Nice white face
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 14k Gold

5.00ct Emerald Cut Blue Topaz 0.38 Carat Diamond Halo 18 Karat White Gold Ring
By Hasbani Diamonds
Located in London, GB
This beautiful 5.00 Carat emerald cut blue topaz engagement ring with surrounded by a pave set 0.38
Category

2010s British Modern Engagement Rings

Materials

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

2 Carat Riviera Line Round Diamond 18 Karat Gold Four Claw Tennis Bracelet
By Hasbani Diamonds
Located in London, GB
gorgeous diamond tennis bracelet, featuring 2.00 Carat of dazzling White Color G Clarity SI1 Round
Category

2010s British Modern Tennis Bracelets

Materials

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

2 Carat GIA Very Light Blue VVS2 Diamond Ring
Located in New York, NY
carat center blue diamond Very Light Blue Pear Shape VVS2 Clarity GIA certified diamond Size 6.5 Set
Category

2010s American Cocktail Rings

Materials

Diamond, Blue Diamond, Pink Diamond, 18k Gold, Rose Gold, Platinum

Certified 5.40 Carat No Heat Greenish Blue Sapphire Diamond Gold Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Beautiful Sapphire Ring. The ring is 18K White Gold. The ring has 1.38 Carats F VS Diamonds The
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Blue Sapphire, Diamond, White Diamond, Sapphire, Green Sapphire, Gold, 1...

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Station Necklace
Located in New York, NY
setting. The treated blue diamonds add a bit of uniqueness and color to any outfit. The total diamond
Category

21st Century and Contemporary Indian More Necklaces

Materials

Blue Diamond, Sterling Silver

GIA Certified 2.24 Carat Cushion Blue Sapphire Diamond Three-Stone Gold Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
is 2.24 Carats Heated from Australia The sapphire is GIA certified. There are 2 Radiant Cut Diamonds
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

14 Karat White Gold Blue Sapphire and Diamonds Halo Pendant '2 1/2 Carat'
Located in San Francisco, CA
Sapphire 2.01 carat total weight framed in a halo of brilliant diamonds. This pendant is ideal for special
Category

21st Century and Contemporary American More Necklaces

Materials

Blue Sapphire, Diamond, White Gold

Sterling Silver 1/2 Carat Treated Blue Diamond Solitaire Milgrain Stud Earrings
Located in New York, NY
with treated, blue round-cut diamonds in a prong setting. The total diamond weight is 1/2 cttw, and is
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

2 Carat Heart Shape Blue Sapphire and Diamond Necklace
Located in Santa Barbara, CA
classic elegance with its vintage, deep-sea blue near 2 carat sapphire. Crafted in 18 karat yellow gold
Category

Vintage 1980s Contemporary Pendant Necklaces

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, 18k Gold, Yellow Gold

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Blue Sapphire, Sapphire, White Diamond, Diamond, White Gold, 18k Gold, Gold

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Dangling Stud Earrings
Located in New York, NY
dangling stud earrings is embellished with .50 carats of round-cut, treated blue diamonds in a prong
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Blue Sapphire, Sapphire, White Diamond, Diamond, White Gold, 18k Gold, Gold

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Sapphire, Blue Sapphire, Diamond, White Diamond, Gold, 18k Gold, White Gold

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

2 Carat London Blue Topaz and Diamond Gold Ring
Located in Montreal, QC
securely nestled London Blue Topaz, approx. 2 Carat, surrounded by Champagne and White Diamonds, approx
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, Gold, 14k Gold, Rose Gold

Blue Oval 2 Carat Sapphire Ring with Side Diamonds 18k Gold
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 2.03 Carat Cut: Oval 2 Diamonds = 0.62
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

White Diamond, Sapphire, Blue Sapphire, Diamond, Gold, 18k Gold, White Gold

2 Carat Fancy Pink & Blue Diamond Cocktail Ring AGL Certified
Located in Kowloon, HK
certified Diamond 2- ➛ Stone Shape: Pear ➛ Stone Color: Fancy Blue ➛ Stone Clarity: VS/SI ➛ Stone Weight
Category

2010s Asian Cocktail Rings

Materials

Pink Diamond, Blue Diamond, White Diamond, Diamond, White Gold, 18k Gold

.925 Sterling Silver 1 1/2 Carat Blue Diamond Solitaire Stud Earrings
Located in New York, NY
shape diamonds for a 1 1/2 carat total weight - how much impact would you like? These sparkling
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Floral Stud Earrings
Located in New York, NY
Inspired by nature, these floral diamond earrings feature the adornment of 0.5 carats black and
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

14K White Gold 1/2 Carat Treated Blue Diamond Round Pendant Necklace
Located in New York, NY
color rated as Blue color, and clarity graded as I1-I2. The total diamond weight of this necklace is 1/2
Category

21st Century and Contemporary Indian Pendant Necklaces

Materials

Blue Diamond, Diamond, White Gold, 14k Gold

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Block Pendant Necklace
Located in New York, NY
pendant is a true statement piece. A center cluster of deep blue, color treated, round cut diamonds
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Blue Diamond, Sterling Silver

14K White Gold 1/2 Carat Treated Blue Diamond Journey Pendant Necklace
Located in New York, NY
This unique piece showcases a row of four circles of round-cut, treated blue diamonds prong set in
Category

21st Century and Contemporary Indian Pendant Necklaces

Materials

Blue Diamond, Diamond, 14k Gold, White Gold

26.08 Carat Oval Shaped Blue Sapphire with 2 GIA Side Trillion Diamonds
Located in Palm Desert, CA
Set in 18 karat white gold is a 26.08 Oval shaped Blue Sapphire with 2 Trillion cut diamonds on the
Category

2010s Italian More Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

2 Carat Oval Blue Topaz Ring with Half Carat of Accent Diamonds
Located in New York, NY
Oval 2.29ct Blue Topaz with 0.51ct total weight of G/H Color, VS Clarity Round Brilliant Diamonds
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, 18k Gold, White Gold

.925 Sterling Silver 1/2 Carat Treated Blue Round-Cut Diamond Pendant Necklace
Located in New York, NY
treated blue round cut diamonds, which makes it a dazzling true piece of art. "Video Available Upon
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, Blue Diamond, Sterling Silver

Sapphire Diamond Ring, 1/2 Carat, Band, 0.50 Carat Blue Sapphire White Gold
By Five Star Jewelry
Located in Austin, TX
blue natural color and the diamonds are G-H color and VS-2 clarity. The materials used for this
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 14k Gold, White Gold

14k White Gold 1/2 Carat White and Treated Blue Round Diamond Earrings
Located in New York, NY
earring hosts a captivating treated blue diamond, approximately 1/6 carat total weight, at its heart. This
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Blue Diamond, Diamond, White Diamond, 14k Gold, White Gold

4-1/2 Carat Swiss Blue Topaz and White Diamond Stud Sterling Silver Earrings
By Affinity Designs LLC
Located in New York, NY
Indulge in elegance with our 4-1/2 Carat Swiss Blue Topaz and White Diamond Stud Earrings. Crafted
Category

2010s Contemporary Stud Earrings

Materials

White Diamond, Blue Sapphire, Sterling Silver

2 Carat Blue Zircon with Diamonds Nature-Inspired Ring in 14K Yellow Gold
By Five Star Jewelry
Located in Austin, TX
Carats Gemstone Color: Vibrant ocean blue Gemstone Shape: Oval Diamond Total Weight: 0.30 Carats Diamond
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Zircon, Blue Zircon, 14k Gold, Yellow Gold

14K White Gold 1/2 Carat Aqua Blue Diamond Screw-Back Classic Stud Earrings
Located in New York, NY
Aqua/Blue Diamond Diamond Count: 2 Round-Cut Diamonds Diamond Color: Aqua/Blue Diamond Clarity: I2-I3
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, Blue Diamond, 14k Gold, White Gold

14K White Gold 1 1/2 Carat White and Treated Blue Diamond Pendant Necklace
Located in New York, NY
. The adornment with sparkling white and treated blue round cut diamonds take its modishness to the next
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Blue Diamond, 14k Gold, White Gold

60 Carat Blue Sapphire Diamond Earrings
By Antinori Fine Jewels
Located in Rome, IT
diamonds and 20 round sapphires Impressive total diamond weight of approximately 15.90 carats Luxurious
Category

2010s Italian Contemporary Clip-on Earrings

Materials

Diamond, White Diamond, Blue Sapphire, 18k Gold, White Gold

14 Karat Gold Round Blue Sapphire Vintage Rustic Diamond Ring 'Center-1/2 Carat'
Located in San Francisco, CA
blue round sapphire, accented with round brilliant diamonds. Experience the difference in person
Category

21st Century and Contemporary American More Rings

Materials

Diamond, Blue Sapphire, Yellow Gold

18K White Gold Blue Sapphire 2 3/4 Carat Diamond Halo Drop Dangle Earring
Located in New York, NY
blue sapphires accented with 2 3/4 carats of radiant diamonds. The highlight of each earring is the
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

14K White Gold 1 1/2 Carat White and Treated Blue Diamond Cocktail Ring
Located in New York, NY
fashion ring is buffed to the lustrous shine of treated blue diamonds that all are framed in the fine
Category

21st Century and Contemporary Indian Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Blue Diamond, 14k Gold, White Gold

18K Yellow Gold 1 2/3 Carat Diamond and Blue Sapphire Gemstone Dangle Earrings
Located in New York, NY
Colorful blue sapphires with brown and white diamonds combine to create a striking motif in these
Category

21st Century and Contemporary Thai Contemporary Dangle Earrings

Materials

Blue Sapphire, Brown Diamond, Diamond, White Diamond, Yellow Gold, 18k Gold

14 Karat Yellow Gold Asiph Blue Sapphire and Diamond Ring Center, 2/5 Carat
Located in San Francisco, CA
This petite fashion ring is impressive in its vintage appeal, featuring a bezeled natural blue
Category

21st Century and Contemporary American More Rings

Materials

Blue Sapphire, Diamond, Yellow Gold

Hand Engraved Platinum 2 Carat Ceylon Blue Sapphire Platinum Halo Diamond Ring
Located in Los Angeles, CA
Ceylon Blue Sapphire 2.07 Carats, 18 Round Diamonds G Color VS1 Clarity, 0.52 Carats. Size 7 Available
Category

2010s American Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

10 carat Blue Sapphire & Diamond Ring
Located in London, GB
Octagonal square cut blue sapphire from Sri Lanka, accented by 2 Tapered Baguette cut Diamonds weighing
Category

2010s Sri Lankan Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

10KT White Gold 1/2 Carat Diamond & 3MM Created Blue Sapphire Gemstone Band Ring
Located in New York, NY
shank is inlaid with five 1/2ct round cut diamonds that alternate with four 3/8ct lab created, deep blue
Category

21st Century and Contemporary Indian Modern Band Rings

Materials

Diamond, Blue Sapphire, 10k Gold, White Gold

Vintage 2 Carat Blue Sapphire and Diamonds Engagement Ring 14 Karat White Gold
Located in Miami, FL
Vintage 2 Carats Blue Sapphire & Diamonds Bow Design Engagement Ring. The ring is a beautiful piece
Category

Vintage 1980s Engagement Rings

Materials

Diamond, Blue Sapphire, White Gold

2 Carats Blue Sapphires in Platinum Diamond Halo Stud Earrings Screw Back Post
By FERRUCCI
Located in New York, NY
2 Carats Blue Sapphires in Diamond Halo Studs earrings hand made in Platinum, with Screw-Back post
Category

2010s American Art Deco Stud Earrings

Materials

Blue Sapphire, Diamond, White Diamond, Platinum

2.18 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
the mount total diamond weight is 0.18 carat, the centre stone is a whopping 2 Carat Certificated
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.31 Carat Diamond & 2.49 Carat Blue Sapphire Ring in Platinum
Located in New York, NY
diamonds and a magnificent 2.49-carat blue sapphire, set in platinum for enduring elegance. Product
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

White Diamond, Blue Sapphire, Diamond, Platinum

GIA Certified 2 Carat Round Cut Blue Sapphire Pave Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite diamond and sapphire ring offers a striking statement look with a sea of rich blue
Category

2010s Italian Modern Cocktail Rings

Materials

Blue Sapphire, Diamond, White Diamond, 14k Gold, White Gold

2 Carat Deep Blue Sapphire & Diamond Cluster Cocktail 18k White Gold Dianna Ring
By Gems and Jewels UK
Located in Birmingham, GB
Princess of Wales. It features a deep blue colour oval cut sapphire centre stone weighing 2 carats and
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

2 Natural Round Diamond-Cut Blue Sapphires Cts 1.21
Located in Hong Kong, HK
treating yourself or searching for the perfect gift for someone special, these diamond-cut blue sapphires
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire, Diamond

Vivid Diamonds AGL Certified 5.91 Carat Burma No Heat Sapphire & Diamond Ring
By Vivid Diamonds
Located in Miami, FL
encircled by 12 round brilliant-cut diamonds with a combined weight of approximately 2 carats, H-I color
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

2.14 Carat Diamond Bespoke 18 Kt White Gold British Hallmark Cluster Cufflinks
By Hasbani Diamonds
Located in London, GB
cufflinks are elegant yet full of radiance. An eye-catcher glistening in every direction, with over 2 carat
Category

2010s British Modern Cufflinks

Materials

Amethyst, Diamond, White Diamond, Yellow Diamond, Black Diamond, Emerald...

18K White Gold Bezel Set Blue Topaz and 1/2 Carat Diamond Bale Dangle Earrings
Located in New York, NY
Infuse some blue hue to your attire with these gorgeous diamond and blue topaz drop earrings
Category

21st Century and Contemporary Thai Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Topaz, Blue Topaz, 18k Gold, White Gold

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Blue Diamond 2 Carat For Sale on 1stDibs

Find the exact blue diamond 2 carat you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. Our collection of these items for sale includes 2969 vintage editions and 4442 modern creations to choose from as well. Making the right choice when shopping for a blue diamond 2 carat 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 accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. A blue diamond 2 carat from Luigi Ferrara, Peter Suchy and Roshe Jewels — each of whom created a beautiful version of this treasured accessory — is worth considering. An oval cut version of this piece has appeal, but there are also round cut and cushion cut versions for sale. If you’re browsing our inventory for a blue diamond 2 carat, 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 Blue Diamond 2 Carat?

The price for a blue diamond 2 carat starts at $27 and tops out at $6,500,000 with these rings, on average, selling for $6,118.
Questions About Blue Diamond 2 Carat
  • 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 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.
  • 1stDibs ExpertNovember 8, 2023
    How big a 2-carat diamond with a princess cut is varies from piece to piece. However, the average size is 7 millimeters by 7 millimeters. The measurement is around 9/32 inches, so a 2-carat princess-cut diamond will be just a little over a quarter-inch in size. On 1stDibs, find an assortment of princess-cut diamond jewelry.