12 Carat Round Diamond
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909
4,970
1,218
1,379
1,338
754
177
124
109
94
55
19
10
7
7
5
8
95
1,977
4,942
36
31
93
80
58
108
156
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4
197
148
99
98
77
4,904
1,986
152
7,003
39
5,868
2,796
3,204
2,076
1,791
6,733
1,237
1,157
636
594
26
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3325
693
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14K Yellow Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Yellow Gold
14K Yellow Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Yellow Gold
14K Rose Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Rose Gold
14K Rose Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Rose Gold
14k Rose Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Rose Gold
14K Rose Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Rose Gold
14K Rose Gold 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Rose Gold
.12 Carat Round Diamond White Gold Art Deco Filigree Bracelet
Located in Stamford, CT
Captivating 9mm wide 14k white gold handcrafted filigree bracelet with 3 round diamonds equaling
Category
Mid-20th Century Link Bracelets
Materials
Diamond, Gold, 14k Gold, White Gold
14K Yellow Gold 4 Prong 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Yellow Gold
14K Yellow Gold 4 Prong 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Yellow Gold
7 Inches 14K Yellow Gold 4 Prong 12 Carat Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, Yellow Gold
Platinum Diamond Cluster Round Brilliant Clip On Earrings 12 Carats G-H SI
By Harbor Diamonds
Located in New York, NY
Diamond cluster earrings featuring 8 Pear shapes, 16 Marquise and 18 Round brilliants weighing
Category
2010s Contemporary Clip-on Earrings
Materials
Diamond, Platinum
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W 0.8 in L 1.1 in
Vibrant 3.4ct Aquamarine & Diamond Platinum Pendant
Located in Bloomington, MN
pendant showcases a stunning .12-carat round diamond with SI1 clarity and H-color. The pendant's
Category
21st Century and Contemporary Contemporary Pendant Necklaces
Materials
Aquamarine, Diamond, Platinum
Tahitian Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold drop earrings featuring 38 round brilliants weighing 0.61 carats with two
Category
2010s Contemporary Drop Earrings
Materials
Diamond, 18k Gold, White Gold
Free Shipping
W 0.45 in L 0.88 in
12 Carat Round Brilliant Diamond Hoop Earrings Certified
Located in New York, NY
Diamond Hoop Earrings For Ladies:
Carat Weight: 11.61 Carats
Style: Round Brilliant Cut
Metal: 14
Category
2010s American Hoop Earrings
Materials
Diamond, 14k Gold, White Gold
South Sea Pearl Diamond Drop Earrings 0.60 Carats 12-13 MM 18K White Gold
By Harbor Diamonds
Located in New York, NY
White Gold 18k
Pearl Size: 12-13mm
Nature: South Sea Cultured Pearl
Pearl Quality: AAA
Nacre: Very
Category
2010s American Contemporary More Earrings
Materials
South Sea Pearl, Diamond, White Gold, 18k Gold
18 Karat White Gold South Sea & Tahitian Pearl Diamond Lariat 0.61 Carats 12-13M
By Harbor Diamonds
Located in New York, NY
with a diamond cap weighing 0.11 carats and 29 Baguette diamonds weighing 0.50 carats.
Can customize in
Category
2010s Contemporary Drop Necklaces
Materials
Diamond, Pearl, White Gold
Diamond Drop Swirl Earrings 2 Carats G VS2 18 Karat White Gold 12 Grams
By Harbor Diamonds
Located in New York, NY
Diamond swirl earrings featuring 84 round brilliants weighing 2 carats, in 18 Karat White Gold
Category
2010s Contemporary Drop Earrings
Materials
Diamond, 18k Gold, White Gold
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W 0.6 in L 1.2 in
Diamond Cluster Floral Tahitian Pearl Drop Earrings 1.03 Carat 18 Karat 12-13 MM
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold drop earrings featuring a floral diamond cluster weighing 1.03 Carats with two
Category
2010s Contemporary Drop Earrings
Materials
Diamond, Pearl, 18k Gold, White Gold
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L 0.88 in
South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat Yellow Gold 12-13MM
By Harbor Diamonds
Located in New York, NY
18 Karat Yellow Gold drop earrings featuring 38 round brilliants weighing 0.61 carats and two South
Category
2010s Contemporary Drop Earrings
Materials
Diamond, South Sea Pearl, 18k Gold, Yellow Gold
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W 0.45 in L 0.88 in
14K 12 Carat White Gold Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, White Gold
14K 12 Carat White Gold Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, White Gold
14K 12 Carat White Gold Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, White Gold
14K 12 Carat White Gold Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, White Gold
14K 12 Carat White Gold Round Diamond Tennis Bracelet
Located in Los Angeles, CA
.
Metal: 14k Gold
Diamond Cut: Round Natural Diamond
Total Diamond Carats: 12ct
Diamond Clarity: VS
Category
2010s American Tennis Bracelets
Materials
Diamond, White Gold
Pink Freshwater Pearl Diamond Drop Earrings 0.61 Carats 18KT Rose Gold 12-13 MM
By Harbor Diamonds
Located in New York, NY
18K Rose gold drop earrings featuring two pink Freshwater pearls measuring 12-13 mm and 38 round
Category
2010s American Contemporary Drop Earrings
Materials
Diamond, Freshwater Pearl, Rose Gold
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L 0.94 in
2.49 Carat Oval Blue Sapphire Round Diamond Hasbani 18Kt Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
0.54 carat diamonds white colour G, clarity VS / SI round brilliant cut diamonds.
This Ring has been
Category
2010s British Modern Engagement Rings
Materials
Blue Sapphire, White Diamond, Diamond, White Gold, 18k Gold, Gold
18 Karat White Gold Diamond South Sea Open Bangle Cuff 0.40 Carats 12-13 MM
By Harbor Diamonds
Located in New York, NY
18 Karat White gold open cuff bangle featuring one South Sea Pearl measuring 12-13 MM and a diamond
Category
2010s Contemporary Cuff Bracelets
Materials
Diamond, 18k Gold, White Gold
3.46 Carat Oval Blue Sapphire Round Diamond Hasbani 18Kt Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
surrounded by a claw set diamond halo With a total diamond weight of 0.99 carat white colour G, clarity VS
Category
2010s British Modern Engagement Rings
Materials
Blue Sapphire, White Diamond, Diamond, White Gold, 18k Gold, Gold
Tahitian Pearl Diamond Drop Bar Earrings 0.63 Carat 18 Karat White Gold 12-13 MM
By Harbor Diamonds
Located in New York, NY
18K White gold drop earrings featuring two Tahitian pearls measuring 12-13 mm with a diamond bar
Category
2010s Contemporary Drop Earrings
Materials
Diamond, Pearl, 18k Gold, White Gold
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L 2.13 in
12 Carat Round Brilliant Cut Diamond Hoop Earrings Certified
Located in New York, NY
Diamond Hoop Earrings:
Carat Weight: 11.60 Carats
Shape: Round Brilliant Cut
Metal: 14 Karat White
Category
2010s American Hoop Earrings
Materials
Diamond, 14k Gold, White Gold
South Sea Pearl Diamond Open Bangle Bracelet 11-12 MM 0.06 Carats 18K Gold
By Harbor Diamonds
Located in New York, NY
18K Yellow gold open bracelet featuring one South Sea Pearl measuring 11-12 mm and one diamond
Category
21st Century and Contemporary American Contemporary Bangles
Materials
Diamond, South Sea Pearl, 18k Gold
Tahitian Pearl Diamond Bangle Bracelet 0.12 Carats 11-12 MM 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18 Karat white gold bangle bracelet featuring 32 round brilliants weighing 0.12 carats and one grey
Category
2010s American Contemporary Bangles
Materials
Diamond, Pearl, Cultured Pearl, 18k Gold, White Gold
South Sea Pearl Diamond Drop Earrings 0.60 Carats 12-13 MM 18 Karat Rose Gold
By Harbor Diamonds
Located in New York, NY
18 Karat rose gold drop earrings featuring two South Sea Pearls measuring 12-13 mm with 8 round
Category
21st Century and Contemporary Unknown Contemporary Dangle Earrings
Materials
Diamond, South Sea Pearl, 18k Gold, Rose Gold
South Sea Pearl Diamond Drop Earrings 0.61 Carats 18 Karat White Gold 12-13 MM
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold drop earrings featuring 38 round brilliants weighing 0.61 carats and two South
Category
2010s Contemporary Drop Earrings
Materials
Diamond, South Sea Pearl, 18k Gold, White Gold
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L 0.88 in
14 Karat Yellow Gold Diamond South Sea Pearl Open Bangle 0.13 Carats 11-12 MM
By Harbor Diamonds
Located in New York, NY
14 Karat Yellow Gold open bracelet cuff featuring 37 round brilliants weighing 0.13 Carats and one
Category
2010s Contemporary Cuff Bracelets
Materials
Diamond, South Sea Pearl, 14k Gold, Yellow Gold
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Dm 2.38 in
12 Carat Round Brilliant Diamonds By The Yard Necklace Certified
Located in New York, NY
luxury to your look. This stunning piece features 11.50 carats of sparkling diamonds, cut into a round
Category
2010s American Link Necklaces
Materials
Diamond
South Sea Pearl Diamond Drop Bar Earrings 0.63 Carat 18 Karat Rose Gold 12-13 MM
By Harbor Diamonds
Located in New York, NY
18K Rose gold drop earrings featuring two South Sea pearls measuring 12-13 mm with a diamond bar
Category
2010s American Contemporary Drop Earrings
Materials
Diamond, South Sea Pearl, Rose Gold
Diamond South Sea Pearl Drop Earrings 0.37 Carats 11-12 MM 18 Karat Rose Gold
By Harbor Diamonds
Located in New York, NY
18 Karat rose gold drop earrings featuring two South Sea Pearls measuring 11-12 MM and 42 round
Category
2010s Contemporary Drop Earrings
Materials
Diamond, South Sea Pearl, 18k Gold, Rose Gold, White Gold, Yellow Gold
12 Carat Diamond Broach in Platinum
Located in New York, NY
Gorgeous 12 carat diamond broach in platinum.
The details are as follows :
Diamond weight : 12
Category
2010s Brooches
Materials
Diamond, Platinum
12 Carats Round Brilliant Diamond Engagement Ring Certified I VVS1 IGI Report
Located in New York, NY
Earth Mined Center Diamond:
Carat Weight: 10.02 Carats
Color: I*
Clarity: VVS1
Style: Round
Category
2010s American Engagement Rings
Materials
Diamond, Platinum
South Sea Pearl Diamond Drop Earrings 0.76 Carat 18 Karat Rose Gold 11-12 MM
By Harbor Diamonds
Located in New York, NY
18K Rose gold drop earrings featuring 84 round brilliants weighing 0.76 carats and two South Sea
Category
21st Century and Contemporary American Contemporary Dangle Earrings
Materials
Diamond, South Sea Pearl, 18k Gold, Rose Gold
South Sea Pearl Diamond Open Bangle Bracelet 11-12 MM 0.06 Carats 18K Rose Gold
By Harbor Diamonds
Located in New York, NY
18K Rose gold open bracelet featuring one South Sea Pearl measuring 11-12 mm and one diamond
Category
21st Century and Contemporary American Contemporary Bangles
Materials
Diamond, South Sea Pearl, 18k Gold, Rose Gold
South Sea Pearl Diamond Open Bangle Bracelet 11-12 MM 0.06 Carats 18K White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold open bracelet featuring one South Sea Pearl measuring 11-12 mm and one diamond
Category
21st Century and Contemporary American Contemporary Bangles
Materials
Diamond, South Sea Pearl, 18k Gold, White Gold
12 Carat Riviera Diamond Necklace
By Belfiore Jewelry
Located in Great Neck, NY
Graduated 3 prong diamond necklace set in 14K white gold. The center stone weighs 0.75 carats. The
Category
21st Century and Contemporary American Modern More Necklaces
Materials
Diamond, 14k Gold
GIA Certified 12 Carat Round Cut Diamond Platinum Stud Earrings
Located in New York, NY
These important diamond stud earrings are graded by the GIA as 6.38 and 6.33 Carat each, J Color
Category
2010s American Stud Earrings
Materials
Diamond, Platinum
2.08 Carat Marquise Cut Blue Sapphire and Round Natural Diamond Pendant ref1822
By Diamond Town
Located in New York, NY
At the outside of this pendant, 12 marquise-cut blue sapphires playfully alternate with 11 round
Category
21st Century and Contemporary Contemporary Pendant Necklaces
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold
South Sea Pearl Diamond Cluster Leaf Earrings 1.05 Carat 12-13 MM 18K White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold
South Sea Pearl 12-13 mm
Diamonds 1.05 Carats
Omega back
You can special order it
Category
2010s Drop Earrings
Materials
South Sea Pearl, White Gold
12 Carat Round Brilliant Cut 2 Inch Diamond Hoop Earrings Certified
Located in New York, NY
2 inch Diamond Hoop Earrings:
Carat Weight: 11.78 Carats
70 round, brilliant cut diamonds, 15pts
Category
2010s American Hoop Earrings
Materials
Diamond, 14k Gold, White Gold
12 Carat Riviera Diamond Tennis Necklace
By Antinori Fine Jewels
Located in Rome, IT
round diamonds four-prong set.
Category
2010s Italian Modern Chain Necklaces
Materials
Diamond, White Diamond, 18k Gold, White Gold
12 Carat Round Cut Diamond Engagement Ring GIA Certified E IF
Located in New York, NY
Diamond:
Carat Weight: 11 Carats
Color: E*
Clarity: INTERNALLY FLAWLESS -IF
Style: ROUND BRILLIANT
Category
2010s American Engagement Rings
Materials
Diamond, 18k Gold, White Gold
Diamond Drop Earrings 4.35 Carat 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold drop earrings featuring 170 round brilliants weighing 2.41 carats and 12 round
Category
2010s American Contemporary Drop Earrings
Materials
Diamond, White Gold
South Sea Pearl and Diamond Earring 2.56 Carat
By Prince Diamond
Located in New York, NY
Metal; 18k white Gold
Pearl Size: 12-13mm White Gold
Pearl quality: AAA
Pearl Luster: AAA Excellent
Category
21st Century and Contemporary American Contemporary Dangle Earrings
Materials
Diamond, South Sea Pearl, 18k Gold
South Sea Pearl and Diamond Earring 2.30 Carats
By Prince Diamond
Located in New York, NY
Metal; 18k white Gold
Pearl Size: 12-13mm White Gold
Pearl quality: AAA
Pearl Luster: AAA Excellent
Category
21st Century and Contemporary American Contemporary More Earrings
Materials
Diamond, South Sea Pearl, 18k Gold
Ruby 1.29 Ct Cluster Pendant 18 Kt White Gold Round Brilliant 0.60 Carat Diamond
By Hasbani Diamonds
Located in London, GB
Ruby Cluster Pendant, The radiant red oval shaped ruby in the center is surrounded by 12 round
Category
2010s British Modern Pendant Necklaces
Materials
Tourmaline, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphir...
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W 0.48 in L 0.79 in
12 Carat White Brilliant Cut Tennis Diamond Bracelet
By Antinori Fine Jewels
Located in Rome, IT
Indulge in the timeless allure of our exquisite 12-carat White Gold Round Brilliant Cut Diamond
Category
2010s Italian Modern Tennis Bracelets
Materials
Diamond, White Diamond, White Gold
12 Carat Diamond Platinum Necklace
Located in Bay Harbor Islands, FL
12 carats. It is further set with a natural color yellow diamond weighing approximately 0.50 carats
Category
Vintage 1940s Unknown More Necklaces
Materials
Diamond, Yellow Diamond, Platinum
12 Carat White Brilliant Cut Tennis Diamond Bracelet
By Antinori Fine Jewels
Located in Rome, IT
Tennis Bracelet with 12.66 carat ROUND cut diamonds in Platinum (0.30ct each)
Diamond Signature
Category
2010s Italian Modern Tennis Bracelets
Materials
Diamond, White Diamond, 14k Gold, White Gold
Vivid Diamonds 1.31 Carat Diamond Bypass Ring
By Vivid Diamonds
Located in Miami, FL
Stunning Vivid Diamonds diamond bypass ring crafted in platinum, featuring 12 round brilliant cut
Category
21st Century and Contemporary American Modern Band Rings
Materials
Diamond, Platinum
.12 Carat Diamond Pearl White Gold Necklace
Located in Stamford, CT
47 cultured pearls 8.5mm
18 round brilliant cut diamonds, H-I SI, approx. .12cts
18k white gold
Category
Late 20th Century More Necklaces
Materials
Diamond, Pearl, Gold, 18k Gold, White Gold
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12 Carat Round Diamond For Sale on 1stDibs
Find the exact 12 carat round diamond you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. You can easily find a 129 antique edition and 381 modern creations to choose from as well. If you’re looking for a 12 carat round diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. There have been many well-made iterations of the classic 12 carat round diamond over the years, but those made by LB Exclusive, Harbor Diamonds and TJD are often thought to be among the most beautiful. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and single cut alternatives. If you’re browsing our inventory for a 12 carat round diamond, 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 12 Carat Round Diamond?
On average, a 12 carat round diamond at 1stDibs sells for $6,265, while they’re typically $166 on the low end and $1,625,000 for the highest priced versions of this item.
Questions About 12 Carat Round Diamond
- 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.
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