Black Onyx 18k
20th Century Cocktail Rings
Diamond, Onyx, 18k Gold
Vintage 1970s French Dangle Earrings
Onyx, 18k Gold, Yellow Gold
Late 20th Century American Beaded Necklaces
Coral, Onyx, 18k Gold, Yellow Gold
Late 20th Century Retro Cocktail Rings
Aquamarine, Onyx, Yellow Gold
21st Century and Contemporary Italian Modern Bangles
Diamond, Onyx, White Gold
2010s Turkish Contemporary Drop Earrings
Chrysophrase, Citrine, Onyx, Topaz, Tourmaline, 18k Gold
2010s Turkish Contemporary Drop Earrings
Citrine, Onyx, Peridot, Topaz, 18k Gold
21st Century and Contemporary Beaded Necklaces
Diamond, Turquoise, Gold, 18k Gold, White Gold
20th Century Clip-on Earrings
Citrine, Onyx, Yellow Gold, 18k Gold
21st Century and Contemporary Unknown Contemporary Drop Earrings
White Diamond, Onyx, 18k Gold, Sterling Silver
21st Century and Contemporary French Cocktail Rings
Diamond, Emerald, Onyx, Gold, 18k Gold, White Gold
2010s German Contemporary More Rings
Onyx, Diamond, White Gold, 18k Gold, Gold
2010s Italian Contemporary Three-Stone Rings
Agate, Onyx, 18k Gold, Rose Gold
2010s Unknown Contemporary Drop Earrings
Citrine, Diamond, Onyx, 18k Gold, White Gold
2010s American Contemporary Lever-Back Earrings
Onyx, 18k Gold, Yellow Gold
Antique 15th Century and Earlier Greek Greek Revival Pendant Necklaces
Onyx, 18k Gold
2010s American Dome Rings
Onyx, 18k Gold, Yellow Gold, Gold
2010s American Contemporary Dome Rings
Onyx, Yellow Gold, 18k Gold, Gold
Vintage 1970s Dome Rings
Diamond, Onyx, 18k Gold, Yellow Gold
2010s Unknown Fashion Rings
Onyx, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Band Rings
Diamond, Onyx, 18k Gold, White Gold
Antique Late 19th Century European Late Victorian Brooches
Onyx, 18k Gold, Enamel
21st Century and Contemporary Italian Cocktail Rings
Onyx, 18k Gold, White Gold
21st Century and Contemporary Unknown Dangle Earrings
Diamond, Onyx, 18k Gold, White Gold
21st Century and Contemporary Indian Contemporary Dangle Earrings
Diamond, Onyx, Ruby, 18k Gold
2010s American Fashion Rings
Onyx, 18k Gold, Yellow Gold
2010s American Signet Rings
Diamond, Onyx, 18k Gold, White Gold, Yellow Gold
21st Century and Contemporary Indian Modern Fashion Rings
Amethyst, Onyx, 18k Gold, Yellow Gold
2010s Hong Kong Art Nouveau Band Rings
Onyx, Tourmaline, 18k Gold
20th Century Italian Modern Clip-on Earrings
Coral, Onyx, 18k Gold, Yellow Gold, Enamel
2010s American Contemporary Pendant Necklaces
Opal, Diamond, Onyx, 18k Gold, Yellow Gold
Vintage 1970s Bangles
Diamond, Onyx, 18k Gold, Yellow Gold
21st Century and Contemporary Indian Contemporary Dangle Earrings
Onyx, Diamond, 18k Gold
2010s Spanish Art Deco Dangle Earrings
Diamond, Onyx, 18k Gold
20th Century Cocktail Rings
Diamond, Onyx, Yellow Gold, Gold, 18k Gold
21st Century and Contemporary Indian Art Deco Dangle Earrings
Onyx, Diamond, Yellow Gold, White Gold, Rose Gold, 18k Gold, Gold
21st Century and Contemporary Indian Classical Roman Cufflinks
Diamond, Onyx, 18k Gold, Rose Gold
21st Century and Contemporary Unknown Cocktail Rings
Diamond, Onyx, 18k Gold, White Gold
2010s American Art Deco Stud Earrings
Emerald, Onyx, Diamond, 18k Gold, White Gold
Mid-20th Century Dome Rings
Diamond, Onyx, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Indian Art Deco Chain Necklaces
Onyx, Diamond, Yellow Gold, White Gold, Rose Gold, 18k Gold, 14k Gold, Gold
21st Century and Contemporary Chain Necklaces
Onyx, Yellow Gold, 18k Gold, Gold
21st Century and Contemporary French Modern Hoop Earrings
Diamond, Onyx, 18k Gold, White Gold
21st Century and Contemporary Indian Modern Chain Necklaces
White Diamond, Onyx, Diamond, 18k Gold, White Gold
Late 20th Century Swiss Wrist Watches
Diamond, White Diamond, Onyx, 18k Gold, Yellow Gold
21st Century and Contemporary Drop Earrings
18k Gold, Yellow Gold
20th Century American Modern Cocktail Rings
Onyx, 18k Gold, Yellow Gold, Platinum
Vintage 1980s American Modern Cufflinks
Onyx, Yellow Gold
2010s American Cufflinks
Onyx, 18k Gold, Rose Gold
21st Century and Contemporary Cufflinks
Malachite, Onyx, 18k Gold
21st Century and Contemporary Bangles
Garnet, Onyx, Tsavorite, 18k Gold, Yellow Gold
21st Century and Contemporary Stud Earrings
Citrine, Diamond, Onyx, 18k Gold, Platinum
20th Century Unknown Modern Clip-on Earrings
Onyx, 18k Gold
1990s Choker Necklaces
Citrine, Diamond, Onyx, 18k Gold, Platinum
20th Century Dome Rings
White Diamond, Onyx, 18k Gold
Vintage 1970s Israeli Link Bracelets
Onyx, Pearl, 18k Gold
1990s Drop Necklaces
Onyx, Ruby, Sapphire, Tourmaline, 18k Gold, White Gold
21st Century and Contemporary Indian Modernist Solitaire Rings
Aquamarine, Onyx, 18k Gold, Rose Gold
Late 20th Century French Art Nouveau Cocktail Rings
Onyx, Ruby, 18k Gold
2010s Dutch Modern Clip-on Earrings
Diamond, Onyx, 18k Gold, Yellow Gold
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Black Onyx 18k For Sale on 1stDibs
How Much is a Black Onyx 18k?
- What is a black onyx ring worth?1 Answer1stDibs ExpertOctober 12, 2021The material of the ring setting is a driving factor in what a black onyx ring is worth. An onyx ring with a sterling silver ring setting can be purchased at under $30 as well. Black onyx is a semi-precious gemstone, with prices ranging from $1 to $500 per carat. Find a collection of vintage and designer black onyx rings on 1stDibs today.
- 1stDibs ExpertApril 5, 2022One way to tell if your black onyx is real or not is to use a scratch test. Because black onyx clocks in at 6.5 to 7 on the Mohs scale of mineral hardness, it can’t be scratched by softer materials. Use a copper penny or a steel knife and scratch the surface of your stone. If the object leaves a scratch on the stone, it isn’t real black onyx. On 1stDibs, you’ll find a collection of genuine black onyx jewelry from some of the world’s top sellers.
- Roman Malakov DiamondsMarch 22, 2021A black onyx ring is a ring set with an onyx gemstone. Onyx is a semi-precious gemstone that typically comes in the color black.
- 1stDibs ExpertNovember 21, 2023Whether a wedding band should be 14K or 18K depends on your personal preferences. Because it contains more pure gold, 18-karat gold will usually show off a richer color and be less likely to fade over time. On the other hand, 14-karat gold is less prone to scratching and damage because it has more alloy metals. Explore a large collection of gold wedding bands on 1stDibs.
- Is 18K gold good for earrings?1 Answer1stDibs ExpertNovember 14, 2023Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
- 1stDibs ExpertNovember 1, 2023The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.