12 Carat Diamond Platinum
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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
Cartier Art Deco 12 Carat Diamond Platinum Bracelet
By Cartier
Located in New York, NY
Exquisite Cartier circa 1930s, Art Deco platinum bracelet, with approximately 12 carats in diamonds
Category
20th Century French More Bracelets
Materials
Diamond, Platinum
Tiffany & Co Paloma Picasso .12 Carat Diamond Platinum Heart Pendant Necklace
By Paloma Picasso for Tiffany & Co.
Located in Stamford, CT
set in platinum. 16 inch chain.
17 round brilliant cut diamonds, approx. .12cts
Platinum
16 inch
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, Platinum
Platinum Diamond Cluster Round Brilliant Clip On Earrings 12 Carats G-H SI
By Harbor Diamonds
Located in New York, NY
approximately 12 carats, in Platinum.
A hook can be added to add a drop.
DM for more information.
Category
2010s Contemporary Clip-on Earrings
Materials
Diamond, Platinum
Free Shipping
W 0.8 in L 1.1 in
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
Art Deco Platinum 12 Carat Diamond Bracelet
Located in New York, NY
Chic & impressive Art Deco platinum and diamond bracelet, circa 1920s. It features approx. 12-13cts
Category
Early 20th Century American Art Deco Link Bracelets
Materials
Diamond, Platinum
Platinum Heart Diamond Tennis Bracelet '12 1/2 Carat'
Located in San Francisco, CA
Gemstone Color: WHITE
Center Gemstone Shape: HEART
Center Diamond Carat Weight: 12
Metal: Platinum
Setting
Category
21st Century and Contemporary American More Bracelets
Materials
Diamond, Platinum
12 Carat Platinum Art Deco Diamond Sapphire Bracelet
Located in Berlin, DE
Platinum Art Deco Diamond Sapphire Bracelet
109 Diamonds
12 Sapphires
Approx. 12ct.
Category
Vintage 1920s Unknown Art Deco More Bracelets
Materials
Diamond, Sapphire, Platinum
12 Carat Cartier Platinum Diamond Earrings
By Cartier
Located in New York, NY
Total Carat Weight: Approx. 12Ctw
Metal: Platinum
Diamond Color: E-F
Diamond Clarity: VS
Length
Category
2010s Lever-Back Earrings
1.00 Carat 12 Princess Cut Diamond Band Ring Platinum
Located in Honolulu, HI
Item Specifications:
Metal: Platinum 900
Diamond Count: 12 princess cut
Total Diamond Carat
Category
Late 20th Century Unknown Modern Band Rings
Materials
Diamond, Platinum
35 Carat Natural Coral and 12 Carat DeBeers Diamond Cocktail Earring in Platinum
Located in New York, NY
brilliant diamonds are surrounding the Round Coral.
Diamonds: approximate 12 carat , VS Quality E color
Category
Early 20th Century Stud Earrings
Materials
Diamond, Coral, Platinum
GIA Certified 12 Carat Emerald Cut Diamond Eternity Band Ring Platinum
By Antinori Fine Jewels
Located in Rome, IT
An incredible custom made eternity band ring composed by 12 carats of GIA certified diamonds D/F
Category
2010s Unknown Modern Bridal Rings
Materials
Diamond, White Diamond, Platinum
TYPE IIA Golconda GIA Certified 12 Carat Oval Diamond Platinum Solitaire Ring
By Antinori Fine Jewels
Located in Rome, IT
diamond, certified by GIA, and boasting an impressive 12 carats.
Crafted to perfection and set in
Category
2010s Contemporary Solitaire Rings
Materials
Diamond, Platinum
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
12 Carat Coral and Diamond Platinum Ring Estate Fine Jewelry
Located in Montreal, QC
with an Awesome 12 Carat Cabochon Red Coral, accented by Diamonds, weighing approx. 0.16tcw. Hand
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Coral, Diamond, Platinum
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
Emerald Cut 1.20 carat D VVS2 GIA Platinum Ring with 12 Diamonds 0.42 carat
Located in Miami, FL
Diamond Emerald Cut VVS2 clarity Stone and 12 amazing round diamonds (0.42 carats) to complement. This
Category
2010s American Contemporary Engagement Rings
Materials
Diamond, Emerald, Platinum
David Webb Platinum & 18K Yellow Gold 12 Carat Diamond Crescent Brooch
By David Webb
Located in New York, NY
. This lovely brooch is set with round cut diamonds of approx. 12 carats.
Brooch measures 2.25 inches.
Category
20th Century American Modern Brooches
Materials
Diamond, 18k Gold, Yellow Gold, Platinum
14.40 Carat Diamond Victorian Platinum Bracelet
Located in Stamford, CT
12 Single cut G-H SI2- I1 diamonds. Approximate .40 carats
Platinum
Tested: Platinum
Stamped: Plat
Category
Antique 1890s Retro Bracelets
Materials
Diamond, Platinum
Platinum 12 Carat Diamond One Line Tennis Princess and Emerald Cut Bracelet
Located in New York, NY
This is a beautiful Platinum 12 Carat Diamond One Line Tennis Princess And Emerald Cut Bracelet
Category
20th Century American Modern Tennis Bracelets
Materials
Diamond, Platinum
2.30 Carat Diamond Platinum Swirl Earrings
Located in Stamford, CT
textured and hand detailed platinum settings. Large sized platinum safety backs.
12 transitional cut round
Category
Early 20th Century More Earrings
Materials
Diamond, Platinum
Vintage Natural Oval Amethyst & Old Euro Diamond Halo Ring Platinum 12 Carat
Located in Carmel-by-the-Sea, CA
: Natural Amethyst
Shape: Oval Brilliant
Weight: 12 Carats
Color: Medium purple violet
Clarity: Eye Clean
Category
Vintage 1950s More Rings
Materials
Amethyst, Diamond, Yellow Gold, Platinum
1.50 Carat Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
One 1.50 Carat Sapphire Diamond Platinum Ring. Featuring one oval mixed cut sapphire of 1.50 carats
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
Platinum Diamond Eternity Ring 8.50 Carats
By Belfiore Jewelry
Located in Great Neck, NY
Diamond eternity ring set in platinum. The stones are set in a u prong low setting, each stone
Category
21st Century and Contemporary American Modern Wedding Rings
Materials
Diamond, Platinum
.60 Carat Diamond Platinum Violin Pendant Brooch
Located in Stamford, CT
Three-dimensional violin brooch pendant in solid platinum with pave and channel set diamonds.
24
Category
21st Century and Contemporary Brooches
Materials
Diamond, Platinum
Vivid DIamonds GIA Certified 12.10 Carat Oval Cut Diamond Eternity Band
By Vivid Diamonds
Located in Miami, FL
Exquisite Vivid Diamonds eternity band hand crafted in Platinum, showcasing 12 stunning GIA
Category
21st Century and Contemporary American Modern Band Rings
Materials
Diamond, Platinum
12 Carat Fancy Intense Yellow VS1 Radiant Cut Diamond Three Stone Platinum Ring
Located in New York, NY
Vivid Radiant Cut Diamond. This diamond is of a remarkable 12 carats and boasts a deep fancy yellow
Category
21st Century and Contemporary American Modern Three-Stone Rings
Materials
Diamond, Platinum
Vintage 12 Carat Blue Sapphire and Diamond Art Deco Open Bracelet in Platinum
Located in Miami, FL
a touch of elegance. Enhancing the bracelet's brilliance are round-cut Diamonds with a total carat
Category
2010s European Art Deco Chain Bracelets
Materials
Diamond, Sapphire, Blue Sapphire, Platinum
3.80 Carat Diamond Platinum Wide Band Ring
Located in Stamford, CT
platinum setting.
12 marquise diamonds, J VS-SI approx. 1.75cts
28 step cut baguette diamonds, I VS-SI
Category
Mid-20th Century Band Rings
Materials
Diamond, Platinum
Platinum Entwine Diamond Ring '1/10 Carat'
Located in San Francisco, CA
: NATURAL DIAMOND
Side Gemstone Shape: ROUND
Metal: Platinum
Metal Weight: 3.62
Setting Type: Prong
Shank
Category
21st Century and Contemporary American Band Rings
Materials
Diamond, Platinum
12 Carat Certified Natural Burma No Heat Ruby Diamond Platinum Three-Stone Ring
Located in New York, NY
two tapered trapezoid shape step-cut diamonds, set in Platinum. The ruby accompanies a gemological
Category
21st Century and Contemporary American Modern Cocktail Rings
Materials
Diamond, Ruby, Platinum
1.01 Carat Aquamarine and Diamond Platinum Cluster Ring
Located in Beverly Hills, CA
One 1.01 Carat Aquamarine and Diamond Platinum Cluster Ring. Featuring one pear cut aquamarine of
Category
21st Century and Contemporary Cluster Rings
Materials
Aquamarine, Diamond, White Diamond, Platinum
1 carat emerald and 12 diamonds ring from 1920
Located in PARIS, FR
Stones: 1 carat emerald and 12 diamonds: 0.44ct
Material: Platinum
Dimensions: Diameter of 12mm
Category
Vintage 1920s Art Deco Wedding Rings
Materials
Diamond, Emerald, Platinum
Just under 12 Carat Fancy Yellow Diamond Engagement Ring, In Platinum GIA Cert.
Located in New York, NY
Introducing an extraordinary Contemporary-style diamond ring with a total weight of 12.82 Carats
Category
21st Century and Contemporary American Contemporary Cocktail Rings
Materials
Yellow Diamond, Yellow Gold, 18k Gold, Platinum
1.30 Carat Diamond Platinum Retro Style Pendant Necklace
Located in Stamford, CT
Retro style 1960’s diamond platinum pendant necklace with round, pear and baguette cut diamonds
Category
Mid-20th Century Pendant Necklaces
Materials
Diamond, Platinum
Platinum Earrings with 12 Ct. Sapphires & 1.3 Ct Diamonds
Located in Antwerp, BE
, triangle cut : 12 Carats
Diamonds: 22 brilliant cut diamonds together approx. 1.3 ct diamonds
Material
Category
20th Century European Artisan Dangle Earrings
Materials
Diamond, Sapphire, Platinum
4.80 Carat Emerald and Diamond Ring in Platinum
Located in Palm Desert, CA
Set in Platinum, with a weight of 16.75 grams, is a 4.80 carat oval cut Emerald flanked with 12
Category
2010s American More Rings
Materials
Diamond, Emerald, Platinum
GIA Certified 12 Carat Radiant Fancy Yellow Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified 12 Carat Diamond Fancy Yellow Radiant Diamond Ring, set in solid platinum and 18K
Category
2010s Unknown Contemporary Cocktail Rings
Materials
Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
1.42 Carat Sapphire Diamond Platinum Eternity Wedding Band
Located in Stamford, CT
platinum setting.
12 round cut diamond approx. total weight .72cts F, VS
12 round cut sapphires approx
Category
21st Century and Contemporary Wedding Rings
Materials
Diamond, Sapphire, Platinum
1.65 Carat Diamond Platinum Art Deco Pendant Necklace
Located in Stamford, CT
chain.
12 transitional cut diamonds, H-I VS-SI approx. .35cts
7 straight cut baguettes, H VA approx
Category
Mid-20th Century Pendant Necklaces
Materials
Diamond, Platinum
.83 Carat Tanzanite Diamond Halo Platinum Pendant Necklace
Located in Stamford, CT
12 round diamonds approx. total weight .24cts, F, VS
Platinum
Stamped: Italy Platinum 950 01
4.1
Category
21st Century and Contemporary Italian Pendant Necklaces
Materials
Diamond, Tanzanite, Platinum
.45 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 8.95
Metal Type: Platinum
Weight: 4.9 grams
Center Diamond Details
Shape: Old European
Category
Vintage 1930s Unknown Art Deco Engagement Rings
Materials
White Diamond, Platinum
.70 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Details:
Weight: .70 carat
Cut: Transitional Round
Color: F
Clarity: VS
Side Diamond Details:
Weight: .12
Category
Vintage 1940s Unknown Art Deco Engagement Rings
Materials
White Diamond, Platinum
12 Carat Cut Diamond Ring D/F VS/VVS Clarity
By Antinori Fine Jewels
Located in Rome, IT
emerald-cut diamonds totaling a remarkable 12.11 carats.
Crafted to perfection, each emerald-cut diamond
Category
2010s Italian Cocktail Rings
Materials
Diamond, White Diamond, Platinum
1.17 Carat Diamond Platinum Art Deco Engagement Ring
Located in Stamford, CT
1930's Diamond engagement ring. Round transitional cut center diamond with 12 old European accent
Category
Early 20th Century Engagement Rings
Materials
Diamond, Platinum
Peter Suchy .70 Carat Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
diamonds separated with platinum rectangles sections separated by platinum.
12 Ideal round brilliant cut
Category
21st Century and Contemporary Wedding Rings
Materials
Diamond, Platinum
Peter Suchy .30 Carat Diamond Platinum Eternity Band Ring
By Peter Suchy
Located in Stamford, CT
Simple diamond wedding band ring. A different take on the traditional wedding band, this platinum
Category
21st Century and Contemporary Wedding Rings
Materials
Diamond, Platinum
Peter Suchy .22 Carat Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
platinum setting. Designed and crafted in the Peter Suchy workshop.
12 round brilliant cut diamonds, G VS
Category
21st Century and Contemporary Band Rings
Materials
Diamond, Platinum
3.89 Carat Cabochon Green Emerald and Diamond Platinum Pendant
By David Gross Group
Located in New York, NY
and two round brilliant cut diamonds weighing .12 carats set in a Platinum hand made pendant. GRS
Category
2010s North American Contemporary Pendant Necklaces
Materials
Diamond, Emerald, Platinum
3.75 Carat Pear Shaped Diamond Platinum Dangle Drop Earrings
Located in Stamford, CT
end totaling 1.90cts.
2 round diamonds, approx. total weight 1.37cts, H – I, VS2 – SI1,
12 round
Category
Late 20th Century Dangle Earrings
Materials
Diamond, Platinum
Art Deco Style 12 Carat Diamond Chandelier Earrings
Located in Santa Barbara, CA
Deco Revival
Year: 2000s
Metal: Platinum/18k Yellow Gold
Diamond: 158 Total
Carat Weight: 12.36
Cut
Category
21st Century and Contemporary Art Deco Chandelier Earrings
Materials
Diamond, Platinum
.90 Carat Diamond Old European Cut Platinum Engagement Ring
Located in Stamford, CT
US314633203D
4 single cut I-J SI diamonds Approximate .12 carats
Size 6 and sizable
Platinum
Stamped: Plat
5.9
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Platinum
Peter Suchy 1.73 Carat Ruby Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
. total weight 1.00cts, SI
12 round Ideal cut Diamonds, approx. total weight .73cts, E – F, VS
Platinum
Category
2010s Wedding Rings
Materials
Diamond, Ruby, Platinum
GRS Certified 12 Carat NO HEAT Burmese Ruby Oval Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
diamonds in a handmade platinum setting
Ruby total weight 12 carats
Diamond total weight 1 carats
Ring size
Category
2010s Italian Modern Cocktail Rings
Materials
Diamond, White Diamond, Ruby, Platinum
12.00 Carat Pear Shape Aqua Diamond Dangle Platinum Earrings
Located in Stamford, CT
Aqua and diamond platinum dangle earrings with swirl design top and pear shaped natural Aqua
Category
Early 20th Century Dangle Earrings
Materials
Aquamarine, Diamond, Platinum
Peter Suchy .53 Carat Round Diamond Platinum Halo Pendant Necklace
By Peter Suchy
Located in Stamford, CT
mounted platinum beaded bezel slide setting. Accented with 12 round pave set diamonds. 18 inch platinum
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, Platinum
Art Deco Platinum & Diamond Encrusted Pin/Fur Clips 12 CT / VS Quality Estate
Located in New York, NY
and unusual piece is made of 26 gm of platinum and encrusted with Approximately 12 carats of
Category
Vintage 1960s Brooches
Materials
Diamond, Platinum
GIA Certified Golconda Type IIA 12 Carat Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
diamond, boasting a magnificent 12 carats.
Exquisitely crafted and set in platinum, this ring exudes
Category
2010s Italian Modern Engagement Rings
Materials
Diamond, White Diamond, Emerald, Platinum
Emerald Cut Diamond Eternity Band GIA Certified 18.51 Carat
By Diamond Scene New York
Located in New York, NY
diamond eternity band featuring 12 Emerald Cut diamonds each with its own GIA certificate. The 12 diamonds
Category
21st Century and Contemporary Band Rings
Materials
Diamond, White Diamond, Platinum
Peter Suchy GIA Certified 1.01 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
# 13592321
12 round brilliant cut diamonds, F-G VS approx. 1.20cts
Size 6.25 and sizable
Platinum
Stamped
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Platinum
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12 Carat Diamond Platinum For Sale on 1stDibs
You are likely to find exactly the piece of 12 carat diamond platinum you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. Find an antique version now, or shop for 1818 vintage or 1300 modern creation for a more contemporary example of these cherished accessories. If you’re looking for an item from our selection of 12 carat diamond platinum 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. Creating a choice in our collection of 12 carat diamond platinum has been a part of the legacy of many jewelers, but those produced by LB Exclusive, Tiffany & Co. and H & H Jewels are consistently popular. A round cut version of this piece has appeal, but there are also oval cut and emerald cut versions for sale. Most of our 12 carat diamond platinum for sale are for women, but there are 524 pieces available to browse for men.
How Much is a 12 Carat Diamond Platinum?
The price for a piece of 12 carat diamond platinum starts at $110 and tops out at $2,500,000 with these rings, on average, selling for $5,949.
Questions About 12 Carat Diamond Platinum
- 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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