30 Carat Black Diamond
21st Century and Contemporary More Bracelets
Diamond, Pearl, South Sea Pearl, Black Pearl, Gold, 14k Gold, White Gold
21st Century and Contemporary Chain Necklaces
Diamond, Black Diamond, Pearl, 18k Gold
2010s American Solitaire Rings
Diamond, Onyx, Blue Sapphire, 18k Gold, Yellow Gold
2010s Italian Contemporary Pendant Necklaces
Pink Sapphire, Blue Sapphire, Black Diamond, Diamond, White Gold, Rose G...
2010s American Clip-on Earrings
Diamond, Pearl, 14k Gold, Yellow Gold
2010s American Clip-on Earrings
Diamond, Pearl, 14k Gold, Yellow Gold
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Pearl, Onyx, Garnet, White Diamond, Diamond, Amethyst, Gold, Rose Gold, ...
2010s American Contemporary Chain Necklaces
White Diamond, Black Diamond, 14k Gold, White Gold
2010s Tennis Bracelets
Diamond, Emerald, Gold, White Gold
Early 2000s Cocktail Rings
Diamond, Emerald, 18k Gold, Yellow Gold
Mid-20th Century Dangle Earrings
Diamond, Jade, Onyx, Gold, 14k Gold, White Gold
21st Century and Contemporary Cufflinks
Diamond, Pearl, Black Pearl, Platinum
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Pearl, Garnet, Diamond, Citrine, Amethyst, Gold, Yellow Gold, 18k Gold
20th Century Unknown Engagement Rings
Diamond, Black Diamond, 14k Gold, White Gold
2010s American Contemporary Brooches
Diamond, Opal, Gold, Platinum
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Tourmaline, Quartz, Pearl, Garnet, Diamond, Amethyst, Gold, Rose Gold, 1...
21st Century and Contemporary American Contemporary Fashion Rings
Diamond, White Diamond, Black Diamond, 18k Gold, Rose Gold
20th Century Unknown Modern Stud Earrings
Black Diamond, Diamond, 14k Gold, Gold, White Gold
21st Century and Contemporary Pendant Necklaces
Diamond, Ruby
21st Century and Contemporary Pendant Necklaces
Diamond, Emerald
21st Century and Contemporary American Solitaire Rings
Diamond, Black Diamond, 18k Gold, White Gold
21st Century and Contemporary Pendant Necklaces
Diamond, Emerald
2010s Israeli Art Deco Wedding Rings
Black Diamond, 14k Gold, Rose Gold
21st Century and Contemporary American Art Deco Pendant Necklaces
Diamond, Onyx, Silver, Sterling Silver
21st Century and Contemporary Pendant Necklaces
Diamond, White Diamond, White Gold
Early 2000s Drop Necklaces
Diamond, Emerald, 18k Gold, 14k Gold
2010s Contemporary Fashion Rings
Diamond, Black Pearl
2010s American Modern Cluster Rings
Diamond, 14k Gold
Late 20th Century More Necklaces
Black Diamond, White Gold
2010s American Arts and Crafts Engagement Rings
Agate, Diamond, Opal, Black Opal, Yellow Gold
2010s Indian Contemporary Drop Necklaces
Diamond, Cultured Pearl, White Gold, 14k Gold
2010s Cocktail Rings
Diamond, White Gold
2010s Beaded Necklaces
Diamond, Emerald, 14k Gold, Yellow Gold, Enamel
Early 20th Century French Art Deco Brooches
White Diamond, Black Diamond, Platinum
2010s Israeli Art Deco Engagement Rings
Diamond, Black Diamond, 14k Gold, Yellow Gold
1990s Engagement Rings
Blue Sapphire, Sapphire, Black Diamond, White Diamond, Diamond, Yellow G...
2010s Israeli Art Deco Engagement Rings
Diamond, Black Diamond, White Gold
Early 2000s German Contemporary Fashion Rings
Black Pearl, Diamond, White Gold, 18k Gold
21st Century and Contemporary Australian Art Deco Cocktail Rings
Black Opal, Opal, Diamond, Platinum, 18k Gold
21st Century and Contemporary American Modern Fashion Rings
Black Opal, Opal, Diamond, White Gold, 18k Gold
2010s American Artist Engagement Rings
Black Diamond, 18k Gold, Yellow Gold
2010s American Artist Engagement Rings
Black Opal, Opal, Diamond, 18k Gold
Late 20th Century Dangle Earrings
Diamond, Onyx, Gold, 14k Gold, White Gold
2010s German Artist Stud Earrings
Diamond, Opal, Black Opal, 14k Gold, White Gold
2010s Israeli Art Deco Fashion Rings
Diamond, Black Diamond, 14k Gold, Yellow Gold
2010s French Art Deco Stud Earrings
Diamond, Opal, Black Opal, 14k Gold, White Gold
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, Opal, Black Opal
2010s American Artist Pendant Necklaces
Black Opal, Opal, Diamond, Yellow Gold, 18k Gold
2010s American Artist Pendant Necklaces
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
2010s American Artist Engagement Rings
Black Opal, Opal, Diamond, 18k Gold
21st Century and Contemporary Italian Drop Necklaces
Diamond, Black Diamond, 18k Gold, White Gold, Rhodium
2010s American Arts and Crafts Brooches
Diamond, Opal, Sapphire, Black Opal, 18k Gold
2010s American Artist Engagement Rings
Black Opal, Opal, Diamond, Yellow Gold, 18k Gold
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, Opal, Black Opal, Platinum
Antique Late 19th Century Unknown Bangles
Diamond, Onyx, 14k Gold, Rose Gold, Gold
2010s American Artist Pendant Necklaces
Black Opal, Tsavorite, Opal, Diamond, 18k Gold
2010s Australian Contemporary Drop Earrings
Opal, Diamond, Black Opal, 18k Gold, White Gold
2010s American Arts and Crafts Engagement Rings
Diamond, Opal, Tsavorite, Black Opal, 18k Gold
21st Century and Contemporary Unknown Modern Fashion Rings
Black Diamond, Sterling Silver
Antique 1880s Brooches
Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Enamel
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30 Carat Black Diamond For Sale on 1stDibs
How Much is a 30 Carat Black Diamond?
- 1stDibs ExpertOctober 5, 2021What a 1-carat black diamond is worth varies according to the cut, type (natural/treated) and the demand and supply. Both natural and treated black diamonds increase in value as demand increases. It ranges from $100 to $3,000 per carat. On 1stDibs, you can find a variety of unique and designer black diamond jewelry & watches from different periods to choose from.