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12 Carat Ruby

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.12 Carat Ruby Two Tone Gold Cigar Men's Cufflinks
Located in Stamford, CT
round ruby. 2 round red rubies, approx. .12cts 18k yellow gold 18k white gold Stamped: 18KT 19.7
Category

21st Century and Contemporary Cufflinks

Materials

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

12 Carat Natural Ruby 3.5 Carat Diamond Cluster Ring
Located in Bay Harbor Islands, FL
Ruby ring set with an oval ruby weighing approximately 12 carats, and 2 pear shape rubies weighing
Category

Vintage 1940s Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

Crawford .12 Carat Diamond Ruby Rose Gold Ladies Wristwatch
Located in Stamford, CT
Vintage retro 1940’s Crawford 14k rose gold ruby and diamond wristwatch with rose gold double snake
Category

Mid-20th Century Wrist Watches

Materials

Diamond, Ruby, Gold, 14k Gold, Rose Gold

12 Carat Treated Ruby & 2.8 Carat Diamond Tennis Bracelet 14 Kt Yellow Gold
Located in New York, NY
12 Carat Treated Ruby & 2.8 Carat Diamond Tennis Bracelet 14 Kt Yellow Gold This exceptionally
Category

2010s Tennis Bracelets

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

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

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Important Antique Marquise Ruby and Diamond Bracelet 12 Carats
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Rubies = 5.28
Category

Mid-20th Century Art Deco Retro Bracelets

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, White Gold

Oval 12 Carat Treated Ruby and 1 Carat Diamond 14 Karat Yellow Gold Ring
Located in New York, NY
16 X11 Oval Cut Approximately 12.28 Carat Treated Ruby 14 Karat Yellow Gold Ring Size 6
Category

2010s Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Antique 3.05 Carat Diamond and Ruby 12 Carat Yellow Gold Dolphin Brooch/Pendant
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive, unusual antique Victorian 3.05 carat diamond and 0.03 carat ruby
Category

Antique 19th Century Unknown Victorian Brooches

Materials

Diamond, Ruby, Yellow Gold

12 Carat Natural Burma Ruby and Diamond Earring in 18 Karat Yellow Gold
Located in New York, NY
12 Carat Natural Burma Ruby and Diamond Earring in 18 Karat Yellow Gold This spectacular earrings
Category

2010s Stud Earrings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

12 Carat Natural Marquise Ruby and Diamond Tennis Bracelet 14 Karat Yellow Gold
Located in New York, NY
. Natural Rubies 56 Pieces approximately 12 Ct Diamonds 56 pieces approximately 0.75ct Please look at all
Category

2010s Tennis Bracelets

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

12 Carat "Octopus" Ring in Gold with Star Ruby, Parti Sapphire & Star Sapphires
By Eytan Brandes
Located in Sherman Oaks, CA
with interesting color and light characteristics. The magenta-colored stone is a 2.94 carat star ruby
Category

2010s American Contemporary Cocktail Rings

Materials

Ruby, Sapphire, Blue Sapphire, Star Sapphire, Star Ruby, Gold, 14k Gold,...

12 Carat Diamond, Ruby, Emerald and Sapphire 18K White Gold Bracelet
Located in Miami, FL
Set in 18K White Gold and accented by roughly 12 total carats of matching Diamonds, Emeralds
Category

Late 20th Century Modern Modern Bracelets

Materials

Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...

Marvel x ECG 1.86 Carat Reality Stone Ruby Limited Edition #12 of 300
Located in New York, NY
This striking Reality Stone oval cut ruby has phenomenal clarity and depth of color. It was cut and
Category

21st Century and Contemporary Mozambican Contemporary Loose Gemstones

Materials

Ruby

1940s 12 Carat Aquamarine and 14K White Gold Earrings with Diamonds and Rubies
Located in New York, NY
carats of aquamarine (6ct in each), surrounded by a cluster of alternating rubies and diamonds, all set
Category

Vintage 1940s American Retro Stud Earrings

Materials

Aquamarine, Diamond, Ruby, 14k Gold

12 Carat Certified Natural Burma No Heat Ruby Diamond Platinum Three-Stone Ring
Located in New York, NY
A beautiful no heat, natural oval shape ruby cabochon weighing over twelve carats, accented with
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Ruby, Platinum

12 Carat Channel Set Art Deco Style Ruby & Diamond Bracelet in 18k White Gold
Located in Miami, FL
18K White Gold. 12 carats total of rubies and diamonds. Details:  ✔ Item Type: Bracelet ✔ Metal: 18k
Category

21st Century and Contemporary Art Deco Link Bracelets

Materials

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

Inside Out 12 Carat Princess Burma Rubies 2 Inch Long Yellow Gold Hoop Earrings
By OGI Ltd
Located in New York, NY
Introducing the stunning Inside Out 12 Carat Princess Burma Rubies, total 95 stones, two Inch
Category

2010s American Contemporary Hoop Earrings

Materials

Ruby, Gold, 14k Gold, Yellow Gold

1.59 Carat Ruby Platinum Ring
Located in Solvang, CA
carat ruby center with two tapered baguette diamond accents. The diamonds have .12 carat total weight
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Ruby, Platinum

13 Carats Ruby Oval Cabochon 14kt Gold 12 Full Cut Round Diamonds Cocktail Ring
By Tutti Frutti Jewellery
Located in Bangkok, TH
13 Carats Natural Ruby oval cabochon ( 11 mm. x 15 mm.) set with 3,7 grams of 14 kt white gold, 12
Category

2010s Thai Contemporary Cocktail Rings

Materials

Diamond, Ruby, Gold, 14k Gold

1.28 Carat Ruby Diamond Rose Gold Ring
By DGI
Located in Los Angeles, CA
Simply beautiful Ruby Diamond Ring with a Round Cut 0.68 Carat Burmese Ruby which is surrounded by
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Ruby, 14k Gold, Rose Gold

2.80 Carat Ruby Gold Wide Band Ring
Located in Stamford, CT
1950's Ruby yellow gold band ring. 76 round rubies along both rims of the setting accented with 12
Category

Mid-20th Century Band Rings

Materials

Ruby, Gold, Yellow Gold, 14k Gold

8.22 Carat Natural Ruby Fancy Carving Loose Gemstone
By JEWEL HUB
Located in Hong Kong, HK
Natural Red Ruby Handmade Carving Fancy Gemstone. 8.22 Carat with a elegant Red color and excellent
Category

21st Century and Contemporary Hong Kong Art Deco Loose Gemstones

Materials

Ruby

8.22 Carat Natural Ruby Fancy Carving Loose Gemstone
8.22 Carat Natural Ruby Fancy Carving Loose Gemstone
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H 0.12 in W 0.48 in L 0.83 in
14 Carat Ruby Diamond 18K White Gold Tennis Bracelet
Located in Territet, CH
14 Carat Ruby Diamond 18K White Gold Tennis Bracelet Stamped: 18K Total Bracelet Weight: 12 Grams
Category

2010s Tennis Bracelets

Materials

Diamond, Ruby, White Gold

14K Ruby Stud Earrings - 3.48 Carat Pear Brilliant Glass Filled Rubies
Located in Holtsville, NY
features stunning 3.48 Carat Pear Brilliant Glass Filled Rubies, totaling 12 stones. The vibrant pink hue
Category

2010s American Artist Stud Earrings

Materials

Ruby, 14k Gold

1.20 Carat Ruby Diamond Yellow Gold Hoop Earrings
Located in Stamford, CT
Ruby and diamond earrings. Half hoop style clip post 14k yellow gold settings with 12 channel set
Category

21st Century and Contemporary Hoop Earrings

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

2.49 Carat Ruby Diamond Yellow Gold Ballerina Ring
By DGI
Located in Los Angeles, CA
This ring has a pretty pear cut Ruby that weighs 1.40 carats and has 12 round cut diamonds that
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

2.14 Carat Ruby Diamond Yellow Gold Bridal Ring
By DGI
Located in Los Angeles, CA
center Ruby just like a charming ballerina would! The Ruby is 1.00 Carat surrounded by 12 Round Cut
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Peter Suchy 1.73 Carat Ruby Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Designs, 3 row Diamond and Ruby wedding band ring. Set comfortably low to the finger
Category

2010s Wedding Rings

Materials

Diamond, Ruby, Platinum

Antique Ruby and Diamond 12 Karat Yellow Gold Pendant / Brooch
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.09 carat diamond and 1.62 carat ruby, 12 karat yellow
Category

Antique 1890s Brooches

Materials

Diamond, Ruby, Yellow Gold

0.40 Carat Diamond/1.30 Carat Ruby 18 Karat Gold Hearts Pendant Necklace
By Sebastian Bernard
Located in Los Angeles, CA
18K Gold Heart shaped Pendant with 12 Invisible Set Princess Cut Rubies (Total Gem Weight 1.30 Ct
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 18k 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

.20 Carat Ruby Diamond Yellow Gold Horseshoe Brooch
Located in Stamford, CT
Early 1900's horseshoe brooch set with 15 square cut rubies and 12 rose cut diamonds. Fold up
Category

Early 20th Century Brooches

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

1.10 Carat Ruby Diamond Yellow Gold Ballerina Engagement Ring
By DGI
Located in Los Angeles, CA
Ballerina Ruby Diamond Ring with a Oval Cut 0.68 Carat Ruby which is surrounded by 12 Round Cut
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

3.19 Carat Mens Ruby Diamond 14 Karat Yellow Gold
By DGI
Located in Los Angeles, CA
This amazing piece is set with a beautiful oval cut Ruby that weighs 2.45 Carats and has 12
Category

21st Century and Contemporary American Contemporary Bridal Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Vintage 1.53 Carat Ruby and 1.03 Carat Diamond Platinum Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 1.53 carat ruby and 1.03 carat diamond, platinum dress ring
Category

1990s Unknown Cocktail Rings

Materials

Diamond, Ruby, Platinum

1.12 Carat Oval Ruby Diamond Halo Cluster Gold Pendant
Located in Stamford, CT
Ruby, approx. total weight 1.12cts, 7.28 x 6.23 x 3.72mm, GIA certificate #219383264 12 round brilliant
Category

Early 20th Century Necklace Enhancers

Materials

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

57.22 Carats Ruby and Diamond Earrings on 18 Karat White Gold
Located in Wan Chai District, HK
. Ruby: 54.90 carats Diamond: 2.32 carats Dimension: 38 x 12 mm Please contact us should you have any
Category

2010s Unknown Dangle Earrings

Materials

Diamond, Ruby, White Gold

2 Carat Natural Ruby and Diamond Ring
Located in Bay Harbor Islands, FL
Beautiful 2 Carat Natural Ruby and Diamond ring features a rectangular cushion-shaped ruby framed
Category

21st Century and Contemporary Cocktail Rings

Materials

Ruby, Diamond, 18k Gold, White Gold

2.03 Carat Diamond Sapphire Ruby White Gold Flower Ring
Located in Stamford, CT
Wide tapered open work flower ring, set with 14 marquise sapphires and 12 marguise rubies with 41
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, Ruby, Sapphire, Gold, 14k Gold, White Gold

5.60 Carat Ruby Cabochon Vintage Ring 18 Karat Oval Ruby Gemstone & Diamonds
Located in Brooklyn, NY
finish (not shiney gold) Ruby Cabochon 5.60 Carat Oval shape and Dome approx size 12 x 10 mm Dark Red
Category

1990s Italian Cocktail Rings

Materials

Ruby, Diamond, Gold, 18k Gold

GIA Burma Heated Ruby 7.71 Carat Oval in Diamond Platinum Ring
Located in La Jolla, CA
GIA Burma Heated Ruby 7.71 Carat Oval in Diamond Platinum Ring Ruby and Diamond Ring features a
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Ruby, Platinum

.50 Carat Round Cabochon Ruby Diamond Pierced Engraved Platinum Pendant Necklace
Located in Stamford, CT
1930's Art Deco ruby and diamond pendant necklace. 1 beautiful round cabochon 14k yellow gold bezel
Category

Early 20th Century Pendant Necklaces

Materials

Diamond, Ruby, Platinum

1.18ct Pentagon Ruby Engagement Ring Set Diamond Crown Band 14k Gold AD1686S-12
Located in Osprey, FL
♥ The engagement ring features a stunning pentagon shape ruby set in solid gold. ♥ The engagement
Category

2010s American Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

0.78 Carat Ruby and Diamond 14 Karat Yellow Gold Band
By DGI
Located in Los Angeles, CA
This is a classic band that is a must-have It has 12 Rubies that weigh 0.50 Carats and 11 Round Cut
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

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12 Carat Ruby For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 12 carat ruby for your needs in our varied inventory. Frequently made of gold, 18k gold and yellow gold, this item was constructed with great care. Our collection of these items for sale includes 79 vintage editions and 151 modern creations to choose from as well. Making the right choice when shopping for a 12 carat ruby may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Finding an appealing 12 carat ruby — no matter the origin — is easy, but Luigi Ferrara, LB Exclusive and Gems Paradise each produced a popular version that is worth a look. See these pages for an oval cut iteration of this accessory, while there are also round cut cut and emerald cut cut versions available here, too. If you’re browsing our inventory for a 12 carat ruby, 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 Ruby?

The price for a 12 carat ruby starts at $110 and tops out at $300,000 with these rings, on average, selling for $5,260.
Questions About 12 Carat Ruby
  • 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 ExpertOctober 12, 2021
    What a 1-carat ruby is worth mostly depends on the color of the ruby. It is the most important factor in determining the ruby's value. The price of a pure brilliant red to slightly purple-red color is considerable. Depending on the color, purity, origin, and size, rubies can cost anywhere from $100 to $15,000 per carat. Shop a range of antique and vintage ruby jewelry on 1stDibs.
  • 1stDibs ExpertOctober 12, 2021
    A Burmese ruby is around $1,400 - $1,600 per carat. It is believed to make its wearer more active, focused and aware of their surroundings. Shop for a variety of Burmese ruby jewelry on 1stDibs.