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Edwardian 12K White Gold Diamond Lucky Horseshoe Pendant
Located in Venice, CA
Circa 1900, this 12k gold lucky horseshoe pendant contains 25 sparkling single cut diamonds bead
Category

Antique Early 1900s Unknown Edwardian Pendant Necklaces

Materials

Diamond, White Gold

Antique 1.80ct Diamond and 12k Rose Gold Bangle
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.80 carat diamond, 12 karat rose gold and silver set bangle
Category

Antique 1890s Unknown Victorian Bangles

Materials

Diamond, Rose Gold

Antique 1.80ct Diamond and 12k Rose Gold Bangle
Antique 1.80ct Diamond and 12k Rose Gold Bangle
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H 0.29 in W 0.09 in L 1.97 in
Antique 12K Gold Sapphire & Mine Cut Diamond Ring
Located in Wallkill, NY
like 12K. The Sapphires are Bezel set and has minor wear. Mine Cut diamonds set like petals are both
Category

Vintage 1910s Unknown Cluster Rings

Materials

Diamond, Sapphire, White Gold, Yellow Gold

1930s Diamond and Enamel 12k Yellow Gold Jockey Brooch
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 0.52 carat diamond and enamel, 12 karat yellow gold and silver set jockey
Category

Vintage 1930s Brooches

Materials

Diamond, Yellow Gold, Enamel

Antique Circa 1900s 12k Gold Natural Rose Cut Diamond Earring
Located in Fatih/İstanbul, 34
Diamond Part 12k Gold. Back Clips Part 14k gold. The diamond is has G color and vs-s1 clarity. Box is not
Category

1990s Asian Late Victorian Clip-on Earrings

Materials

Diamond, Gold

14 K Rose Gold "Antiqued" Cross with 12 Round Natural Light "Pink" Diamonds
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
14k rose gold "antiqued" cross with 12 round Natural Light "Pink" Diamonds weighing approximately
Category

Mid-20th Century American Art Deco Pendant Necklaces

Materials

Diamond, Pink Diamond, 14k Gold, Rose Gold

1920s Antique 0.26ct Diamond and Pearl 12k Yellow Gold Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.26 carat diamond and natural pearl, 12 karat yellow gold and
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Pearl, Yellow Gold, Platinum

Victorian 12K Gold Diamond, Amethyst, Pearl, and Garnet Fly Brooch
Located in Venice, CA
This 12k gold Victorian brooch is meticulously crafted with superb attention to detail. The
Category

Antique 1880s Unknown Victorian Brooches

Materials

Amethyst, Diamond, Garnet, Pearl, Gold, Yellow Gold

12k Yellow Gold Diamond Set Owl Motif Ring, App. 0.83 TCW
Located in Southport, CT
diamond, prong set. The entire diamond weight for the ring is 0.83 TCW. Marks: None, tested 12k Dimensions
Category

20th Century Unknown Retro Cocktail Rings

Materials

Diamond, White Diamond, Yellow Gold

Vintage 12k Gold Natural Diamond And Caliber Emerald Decorated Ring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 2.3 grams. Totally is diamond 0.60 ct. The diamond is has G
Category

Vintage 1980s European Retro Cocktail Rings

Materials

Diamond, Emerald, Gold

Old Original Vintage 12k Gold Natural Rose Cut Diamond Drop Earring
Located in Fatih/İstanbul, 34
to be 12k real gold. The diamond is has H color and vs-s1-s2 clarity. Box is not included. Please
Category

Vintage 1960s Asian Retro Drop Earrings

Materials

Diamond, Gold

Antique Italian Halo Ring Sapphire Diamonds 12K Ø 7.75US / 4.2gr
Located in SE
Italian Halo Ring with natural Blue - Green Sapphire and 12 rose-cut Diamonds. Hand-made between
Category

Vintage 1920s Italian Art Deco Cluster Rings

Materials

Diamond, Sapphire, 10k Gold, Silver

Victorian 12k Foiled Back Rose Cut Diamond Heart & Arrow Earrings
Located in Narberth, PA
An absolutely exquisite and unusual pair of diamond heart and arrow earrings from the Victorian
Category

Antique Late 19th Century Unknown Victorian Dangle Earrings

Materials

Diamond, 10k Gold

South Sea Pearl Day & Night with 12 Carat Diamond Cocktail Earrings 18 K Gold
Located in New York, NY
South Sea Pearl Day & Night with 12 Carats Diamond Cocktail Earrings 18 K White Gold , Beautiful
Category

Early 20th Century Stud Earrings

Materials

Diamond, South Sea Pearl, 18k Gold

Antique Circa 1900s 12k Gold Natural Rose Cut Diamond Decorated Ring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 5.9 grams. Totally is diamond about 1.30 carat. The diamond
Category

Antique Early 1900s Turkish Late Victorian Cocktail Rings

Materials

Diamond, Gold

Victorian 2.32 Carat Diamond and 12k Yellow Gold Miniature Portrait Pendant
Located in Jesmond, Newcastle Upon Tyne
An exceptional, fine and impressive antique Victorian 2.32 cttw diamond and 12 karat yellow gold
Category

Antique 1890s Victorian Pendant Necklaces

Materials

Diamond, Yellow Gold, Silver

12k Rose and White Gold Aquamarine and Diamond Squared off Ring
Located in Southport, CT
diamond weight for the ring is approximately 0.42 TCW. Marks: None, tests 12k Dimensions: 7/16" across the
Category

21st Century and Contemporary Unknown Contemporary Fashion Rings

Materials

Aquamarine, Diamond, Rose Gold, White Gold

Antique Circa 1900s Ottoman 12k Gold Natural Rose Cut Diamond Drop Earring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 12.4 grams. Totally is diamond about 3 ct. The diamond is
Category

Antique Early 1900s Turkish Victorian Drop Earrings

Materials

Diamond, Gold

Antique Diamond Chick bangle, Ruby, Pearl and White Enamel, 12k gold
Located in NEWARK, GB
Words simply cannot express how wonderful this piece is, an antique Diamond Chick bangle hailing
Category

Antique 19th Century British Victorian Bangles

Materials

Diamond, Pearl, Ruby, Gold, Enamel

1950s 5.72 Carat Sapphire and 1.10 Carat Diamond 12k Yellow Gold Bracelet
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 5.72 carat sapphire and 1.10 carat diamond, 12 karat yellow gold
Category

Vintage 1950s Chain Bracelets

Materials

Diamond, Sapphire, Yellow Gold

Antique Circa 1900s 12k Gold Top Silver Natural Diamond And Turquoise Ring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 3.8 grams. Total is diamond 0.63 ct. The diamond is has H-I
Category

Antique Early 1900s European Late Victorian Cocktail Rings

Materials

Diamond, Turquoise, Gold, Silver

12K Gold and Sterling Silver Diamond Turquoise and Pearl Ring, Early Victorian
Located in Venice, CA
This 12k gold early Victorian ring features a flower motif of vibrant turquoise. In the center is a
Category

Antique 1850s Unknown Early Victorian Cluster Rings

Materials

Diamond, Pearl, Turquoise, Sterling Silver, Gold

Antique 5.05 Carat Aquamarine 0.30 Carat Diamond and 12k Yellow Gold Pendant
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique Victorian 5.05 carat aquamarine and 0.30 carat diamond, 12
Category

Antique 1890s Unknown Victorian Pendant Necklaces

Materials

Aquamarine, Diamond, Yellow Gold, Silver

Antique Circa 1900s 12k Gold Natural Rose Cut Diamond Decorated Navette Ring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 5.5 grams. Totally is diamond about 1.40 carat. The
Category

Antique Early 1900s European Victorian Cocktail Rings

Materials

Diamond

44 Round Diamond 10-12 Pointer Each Tennis Bracelet in 14 K Yellow Gold 5.0 Ct
Located in New York, NY
44 Round Diamond 10-12 Pointer Each Tennis Bracelet in 14 K Yellow Gold 5.0 Carat Line Bracelet
Category

2010s Unknown Link Bracelets

Materials

Diamond, 14k Gold, Yellow Gold

Antique Circa 1900s 12k Gold Natural Rose Cut Diamond And Caliber Ruby Earring
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 4.6 grams. Totally is diamond 0.90 ct. Totally is ruby 0.30
Category

Antique Early 1900s European Late Victorian Stud Earrings

Materials

Diamond, Ruby, Gold

Antique Art Deco Circa 1920s 12k Gold Natural Diamond Decorated Drop Earring
Located in Fatih/İstanbul, 34
tested to be 18k real gold. The diamond is has vs-s1-s2-s3 clarity and H-I-J-K-L-M color. Original
Category

Vintage 1920s European Art Deco Drop Earrings

Materials

Diamond, Gold

Antique Diamond, Sapphire, Pearl and 12k Yellow Gold Shell Bar Brooch Circa 1900
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 0.82 carat diamond, 0.15 carat sapphire and pearl, 12 karat yellow
Category

Antique Early 1900s Brooches

Materials

Diamond, Pearl, Sapphire, Yellow Gold

Antique 1.50Ct Ruby and 0.60Ct Diamond 12k Yellow Gold Flower Brooch Circa 1890
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 1.50 carat ruby and 0.60 carat diamond, 12 karat yellow gold and
Category

Antique 1890s Brooches

Materials

Diamond, Ruby, Yellow Gold, Silver

12k Gold 3/4 Bezel Set Five Stone Brilliant Diamond Band, App. 1.05 TCW
Located in Southport, CT
12k white gold ring. This beautiful ring is a five stone band, set with round brilliant cut
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Diamond, White Diamond, Gold, White Gold

1920s 0.42 Carat Emerald and 1.20 Carat Diamond 12K Yellow Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 0.42 carat emerald and 1.20 carat diamond, 12 karat yellow
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Emerald, Yellow Gold

Antique German Ring 1.4ctw old cut Diamonds solid 12K Gold Silver ØUS8/ 3.6gr
Located in SE
German old cluster Ring hand - made ca. late XIX -early XX cent. with parts in solid 12K Rose Gold
Category

Antique 19th Century European Art Nouveau Wedding Rings

Materials

Diamond, 18k Gold, Silver, 10k Gold

Antique Circa 1900s 12k Gold Top Silver Natural Rose Cut Diamond Emerald Ring
Located in Fatih/İstanbul, 34
Total weight is 4.9 grams. Totally is rose cut diamond about 0.35 ct. Totally is emerald about 1 ct
Category

Antique Early 1900s European Victorian Cluster Rings

Materials

Diamond, Emerald, Gold, Silver

Vintage Circa 1970s 12k Gold Natural Diamond And Emerald Decorated Strong Ring
Located in Fatih/İstanbul, 34
. Totally is rose cut diamond 0.60 ct . The diamond is has H-I-J-K color and s1-s2-s3. Totally is emerald
Category

Vintage 1970s European Retro Cluster Rings

Materials

Gold

White Gold Diamond Vintage Eternity Wedding Band 12k Single Ct .40ctw Ring 4 1/2
Located in Greensboro, NC
Size: 4 1/2 Era: Vintage Metal Content: 12k White Gold Stone Information Natural Diamonds Carat
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, White Gold

South Sea Tahitian Pearl Diamond Bypass Bangle 18K White Gold
By Harbor Diamonds
Located in New York, NY
18 K White Gold South Sea Pearl 11-12 MM Tahitian Pearl 11-12 MM 16 Diamonds 0.20 Cts. Weight 5 g
Category

21st Century and Contemporary American Contemporary Bangles

Materials

Cultured Pearl, South Sea Pearl, White Gold

1800s Antique Victorian 3.13 Carat Opal and 12k Yellow Gold Brooch
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 3.13 carat opal and 12 karat yellow gold, steel set brooch; part of
Category

Antique 1890s Victorian Brooches

Materials

Opal, Yellow Gold, Silver

Antique Enamel and Seed Pearl 12k Yellow Gold Mourning Brooch, circa 1835
Located in Jesmond, Newcastle Upon Tyne
An exceptional, fine and impressive enamel and seed pearl, 12 karat yellow gold mourning brooch
Category

Antique 1830s Unknown Brooches

Materials

Pearl, Yellow Gold, Enamel

Bespoke Diamond Ring 1.85ct
Located in SYDNEY, NSW
. Diamonds 12 = 0.90ct (estimated) Graded in setting as Colour: G to K, Clarity: SI to P1 Weight 9.44 grams
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, White Gold

Antique Diamond Star Pendant with Old Cushion Cut Diamonds
Located in Danvers, MA
Offered is a striking antique diamond pendant in the shape of a stylized star. Chunky & fiery old
Category

Antique 1810s Unknown Georgian Pendant Necklaces

Materials

Diamond, Gold, Sterling Silver

Dalben Tanzanite Diamond Gold Ring
By Oreste Dalben
Located in Como, IT
round brillant cut Diamonds weight 0,23 carats mounted in 18 k white gold. Head ring dimension
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, White Diamond, Gold, White Gold, 18k Gold

1920s Diamond Gold Ring
Located in Berlin, DE
Europe, 1920's. Mounted in 18 K white gold with 7 old-mine-cut diamonds weighing circa 0,95 ct
Category

Early 20th Century Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Impressive Black Diamond White Gold Necklace
By Natkina
Located in Montreux, CH
Necklace White Gold 14 K Diamond 10-RND-0,06-G/VS1A Diamond 12-RND-0,23-I/VS2A Diamond 2-RND
Category

2010s Drop Necklaces

Materials

Black Diamond, Diamond, 14k Gold, White Gold

14K White Gold Diamond Band
Located in Beverly Hills, CA
One 14K white gold diamond band featuring 12 prong set, round brilliant cut diamonds set upon two
Category

Vintage 1970s Band Rings

Materials

Diamond, 14k Gold, White Gold

Impressive Black Diamond Yellow Gold Necklace
By Natkina
Located in Montreux, CH
Necklace Yellow Gold 14 K (Matching Ring and Earrings Available) Diamond 10-RND-0,06-G/VS1A
Category

2010s Drop Necklaces

Materials

Diamond, Black Diamond, Yellow Gold, 14k Gold

Bespoke Diamond Dress Ring 1.00ct
Located in SYDNEY, NSW
A Bespoke Diamond Dress Ring Diamond ring, made of 18ct White Gold, and weighing 7.38 gm. Stamped
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

0.65 Carat Diamond Pear Shape with Diamond Halo Engagement Ring
Located in Berkeley, CA
symmetry of balanced proportion. The center diamond is SI1 J/K color and is surrounde by 12 brilliant white
Category

2010s American Modernist Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Cluster Diamond Ring 18 Karat White Gold Center Diamond 1.01 Carat
Located in Brooklyn, NY
This is a fancy Cluster Ring with a center 1.01 carat diamond (6mm) Brilliant J-K-SI 18k White
Category

2010s Thai Bridal Rings

Materials

Diamond, 18k Gold, White Gold

Antique 1.62 Carat Diamond Bar Brooch
Located in Jesmond, Newcastle Upon Tyne
An impressive antique 1.62 Ct diamond and 12k yellow gold, platinum set bar style brooch; part of
Category

Vintage 1920s Unknown Brooches

Materials

Diamond, Yellow Gold, Platinum

Antique 1.62 Carat Diamond Bar Brooch
Antique 1.62 Carat Diamond Bar Brooch
Free Shipping
H 0.24 in W 0.48 in L 1.22 in
Diamond Solitaire Platinum Ring, circa 1960s
Located in Beverly Hills, CA
: Platinum Gemstone: Diamond = 2.05 ct., J-K / VS-1 Gemstone: Diamond accents totaling 0.20 ct. Circa: 1960s
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Bespoke Diamond Square Cluster Ring 2.84ct
Located in SYDNEY, NSW
within a border of 16 round brilliant cut diamonds and with 12 round brilliant cut diamonds claw set down
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Gold

Victorian Old Cut Diamond Cluster Ring
Located in London, GB
carat old cut diamond that is surrounded by a further 12 smaller old cut diamonds. Each of the diamonds
Category

20th Century Engagement Rings

Materials

Diamond, 15k Gold

Vintage 1950s 2.10 Carat Round Diamond Ring with Sapphires and Diamonds
Located in Boston, MA
Vintage 2.10ct European Cut Round Diamond Ring from the 1950’s. The diamond is a K color and VS2
Category

Vintage 1950s American Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Impressive Diamond Yellow Gold Ring
By Natkina
Located in Montreux, CH
Ring Yellow Gold 14 K (Matching Earrings Available) Diamond 12-RND-0,08-G/VS1A Weight 2.59 grams
Category

2010s Fashion Rings

Materials

Diamond, 14k Gold, Yellow Gold

Geometric Ruby and Diamond Ring
Located in NEW ORLEANS, LA
of this estate ring. Set in polished 14 K yellow gold. The approximately 12 square-cut rubies weigh
Category

20th Century Retro Band Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Classic Diamond Quartz Yellow Gold Earrings
By Natkina
Located in Montreux, CH
Earrings Yellow Gold 14 K Diamond 12-RND-0,1-G/VS1A Diamond 94-RND-0,28-H/VS1A Diamond 12-RND
Category

2010s Lever-Back Earrings

Materials

Quartz, Diamond, 14k Gold

5.10 Carat Diamond and Ruby Cocktail Ring
Located in New York, NY
12 Grams. This ring features 6 beautiful colored rubies each 0.60 points, embedded diamonds are K
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Ruby

Victorian Pink Paste and Diamond Cluster Ring
Located in London, GB
Diamond Dimensions: 12 (1.5mm) Period: Early Victorian Box: The Vintage Jeweller Ring Box Comments: This
Category

Antique Early 19th Century Cluster Rings

Materials

Diamond

Sapphire Emerald Diamond Gold Ring
Located in Berlin, DE
yellow. 12 sapphires weighing circa 0.50 ct. and 6 emeralds weighing circa 0.30 ct. Mounted in 18 K white
Category

Late 20th Century Art Deco Cluster Rings

Materials

Diamond, Emerald, Sapphire, 18k Gold, White Gold

Impressive Classic Diamond White Gold Ring
By Natkina
Located in Montreux, CH
Ring White Gold 14 K (Matching Earrings Available) Diamond 12-RND-0,2-G/SI1A Diamond 1-RND-0,09-H
Category

2010s Cocktail Rings

Materials

Diamond, 14k Gold, White Gold

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12k Diamond For Sale on 1stDibs

Surely you’ll find the exact 12k diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. You can easily find a 645 antique edition and 1434 modern creations to choose from as well. You’re likely to find the perfect 12k diamond among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Creating a 12k diamond has been a part of the legacy of many jewelers, but those produced by Chanel, LB Exclusive and Luigi Ferrara are consistently popular. A 12k diamond can make for a versatile accessory, but a selection from our variety of 1655 Diamond versions can add an especially stylish touch. 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 emerald cut alternatives. If you’re browsing our inventory for a 12k 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 12k Diamond?

Prices for a 12k diamond can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $99 and can go as high as $2,699,999, while this accessory, on average, fetches $7,433.