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Black Onyx 18k

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Vintage Diamond & Black Onyx 18K Gold Ring
Located in New York, NY
Vintage Diamond and Black Onyx 18K Gold Ring—Meticulously crafted, this vintage ring features a
Category

20th Century Cocktail Rings

Materials

Diamond, Onyx, 18k Gold

Carved Black Onyx 18K Yellow Gold Earrings by Wander
By Wander
Located in Beverly Hills, CA
One pair of carved black onyx 18K yellow gold earrings by Wander featuring a fluted gold design
Category

Vintage 1970s French Dangle Earrings

Materials

Onyx, 18k Gold, Yellow Gold

David Webb Faceted Coral Black Onyx 18k Yellow Gold Necklace
By David Webb
Located in New York, NY
faceted coral beads, twenty-one black onyx-lined discs, and 18 karat yellow gold; marked Webb, 18k This
Category

Late 20th Century American Beaded Necklaces

Materials

Coral, Onyx, 18k Gold, Yellow Gold

Aquamarine and Black Onyx 18K Yellow Gold Cocktail Ring
Located in Chevy Chase, MD
from black Onyx and 18K yellow gold. The ring is two inches from top to bottom. It is currently a
Category

Late 20th Century Retro Cocktail Rings

Materials

Aquamarine, Onyx, Yellow Gold

Roberto Coin Panda Diamond Black Onyx 18K White Gold Bangle Bracelet
By Roberto Coin
Located in Miami, FL
Panda collection Roberto Coin Diamond Onyx Gold Eternity Bracelet. A classic Diamond & Black Onyx
Category

21st Century and Contemporary Italian Modern Bangles

Materials

Diamond, Onyx, White Gold

5- 4mm Stone Baroque Peach Violet Pearl Earrings Black Onyx 18 K Yellow Gold
By MAVIADA
Located in GB
relations know. The Peach coloured pearls come in Black Onyx, Citrine, London Blue Topaz and Peridot. The
Category

2010s Turkish Contemporary Drop Earrings

Materials

Chrysophrase, Citrine, Onyx, Topaz, Tourmaline, 18k Gold

MAVIADA's Modern 3-4mm Stone Baroque Pearl Earring, Black Onyx, 18K Yellow Gold
By MAVIADA
Located in GB
pearls in 18k yellow gold drop earrings. They come in fantastic stylish multiple coloured gemstones
Category

2010s Turkish Contemporary Drop Earrings

Materials

Citrine, Onyx, Peridot, Topaz, 18k Gold

VAN CLEEF & ARPELS Magic Alhambra Black Onyx 18k Yellow Gold Clip-on Earrings
By Van Cleef & Arpels
Located in New York, NY
crafted in 18k yellow gold and feature a pair of lucky clover motifs inlaid with black onyx round bead
Category

1990s Clip-on Earrings

Materials

Onyx, Yellow Gold

3 Carat Diamond and Turquoise Necklace
Located in Carlsbad, CA
• 3 Carat Diamonds • Fine Turquoise • Black Onyx • 18K Gold
Category

21st Century and Contemporary Beaded Necklaces

Materials

Diamond, Turquoise, Gold, 18k Gold, White Gold

Citrine and Onyx 18k Yellow Gold Earclips, circa 1970s
Located in Beverly Hills, CA
One pair of citrine and black onyx 18K yellow gold earclips featuring fluted black onyx portions
Category

20th Century Clip-on Earrings

Materials

Onyx, Citrine, Yellow Gold, 18k Gold

Meghna Jewels Claw Drop Black Onyx Diamond Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
cut black onyx. 18K Gold 0.8 grams, Sterling Silver 3.8 grams, black onyx 9.6 ct, White Diamonds .665
Category

21st Century and Contemporary Unknown Contemporary Drop Earrings

Materials

Onyx, White Diamond, 18k Gold, Sterling Silver

Cartier Paris Diamond "Panthère" Ring
By Cartier
Located in New York, NY
(approximate total weight 0.04 carat); black onyx; 18K White Gold Signed: Cartier, 750, 84344B, French assay
Category

21st Century and Contemporary French Cocktail Rings

Materials

Diamond, Emerald, Onyx, Gold, 18k Gold, White Gold

18 K Whitel Gold Ring Black Onyx Diamonds
Located in Zurich, Zollstrasse
Attractive moder n 18 K whitel Gold Ring featuring 1 square cut Onyx that is accentuated by 28
Category

2010s German Contemporary More Rings

Materials

Diamond, Onyx, Gold, 18k Gold, White Gold

Modern Italian 18 K Rose Gold Ring White Agate Black Onyx
Located in Zurich, Zollstrasse
a modern 18 K rose Gold italian Ring featuring a fancy sahpe black Onyx flanked by 2 fancy sahpe
Category

2010s Italian Contemporary Three-Stone Rings

Materials

Agate, Onyx, 18k Gold, Rose Gold

18 K White Gold Onyx Citrine Diamond Dangle Earrings
Located in Zurich, Zollstrasse
A pair of extravagant 18 K white Gold dangle earrings featuring 2 black donut shaped Onyx, 2 small
Category

2010s Unknown Contemporary Drop Earrings

Materials

Citrine, Diamond, Onyx, 18k Gold, White Gold

Gump's 18k Yellow Gold Black Onyx Earrings
By Gump's San Francisco
Located in Los Angeles, CA
Main Stone Color:Black Metal Purity:18k Closure:Clip-On Main Stone:ONYX Metal:Yellow Gold Brand:GUMP'S
Category

2010s American Contemporary Lever-Back Earrings

Materials

Onyx, 18k Gold, Yellow Gold

Dimos 18k Gold Black Onyx Carved Sphinx
Located in Athens, GR
Museum replica pendant in 18 karat yellow gold completely handmade set with black Onyx hand carved
Category

Antique 15th Century and Earlier Greek Greek Revival Pendant Necklaces

Materials

Onyx, 18k Gold

Dimos 18k Gold Black Onyx Carved Sphinx
Dimos 18k Gold Black Onyx Carved Sphinx
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H 1.378 in W 0.748 in
Black Onyx Fluted 18K Yellow Gold Ring
By Valentin Magro
Located in New York, NY
descend into a multi-split shank. The total weight of the black onyx is 18 carats. Measurements for the
Category

2010s American Dome Rings

Materials

Onyx, Yellow Gold, Gold, 18k Gold

18K Yellow Gold Dome Black Onyx Ring
By Valentin Magro
Located in New York, NY
A polished 18k yellow gold band raises to the apex of black onyx. The claw prongs supporting the
Category

2010s American Contemporary Dome Rings

Materials

Onyx, Yellow Gold, Gold, 18k Gold

Black Onyx and Diamond 18K Yellow Gold Ring
Located in Beverly Hills, CA
Black onyx and diamond 18K yellow gold ring featuring a dome shaped, high dimension onyx portion
Category

Vintage 1970s Dome Rings

Materials

Diamond, Onyx, 18k Gold, Yellow Gold

Verdura 18k Yellow Gold Black Onyx 'Trio' Ring
By Verdura
Located in Palm Beach, FL
Verdura "Trio" 18kt yellow gold and black onyx ring made from the original designs of Fulco di
Category

2010s Unknown Fashion Rings

Materials

Onyx, 18k Gold, Yellow Gold

MONTANA 18k White Gold Ring with Black Onyx
By Rockford Collection
Located in New York, NY
Type: Natural Black Onyx Metal: 18k White Gold Gender: for Men and Women
Category

2010s American Contemporary Wedding Rings

Materials

Onyx, White Gold, 18k Gold

18K White Gold Black Onyx and Diamond Ring
Located in Houston, TX
18K white gold cigar band style ring with black onyx and diamonds. The onyx is curved and is
Category

21st Century and Contemporary Unknown Band Rings

Materials

Diamond, Onyx, White Gold, 18k Gold

Antique 18K Gold Black Enamel and Onyx Brooch
Located in Rotterdam, NL
This antique 18 karat gold and enamel round brooch is created with black onyx and set with a seed
Category

Antique Late 19th Century European Late Victorian Brooches

Materials

Onyx, 18k Gold, Enamel

Antique 18K Gold Black Enamel and Onyx Brooch
Antique 18K Gold Black Enamel and Onyx Brooch
Free Shipping
W 1.07 in L 1.07 in
Bvlgari Allegra 18k White Gold Black Onyx Ring
By Bulgari
Located in Southampton, PA
A singular onyx gemstone serves as a stunning focal point on this breathtaking Bvlgari ring from
Category

21st Century and Contemporary Italian Cocktail Rings

Materials

Onyx, 18k Gold, White Gold

Black Onyx and Diamond Earrings in 18k White Gold
Located in Honolulu, HI
Item Specifications: Style: Diamond & Black Onyx Earrings Metal: 18K White Gold Diamond Color
Category

21st Century and Contemporary Unknown Dangle Earrings

Materials

Diamond, Onyx, 18k Gold, White Gold

Ruby, Black Onyx & Diamond Earrings Studded in 18K Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
, set in a frame of black onyx weight 11.62 carat with round shaped diamonds weight 0.49 carat, these
Category

21st Century and Contemporary Indian Contemporary Dangle Earrings

Materials

Diamond, Onyx, Ruby, 18k Gold

Black Onyx Three Pyramids in 18k Yellow Gold Ring
By FERRUCCI
Located in New York, NY
Pyramid collection, the Three Pyramid Black Onyx ring in 18k yellow gold, manufactured in New York
Category

2010s American Fashion Rings

Materials

Onyx, 18k Gold, Yellow Gold

Amethyst & Black Onyx Ring Studded In 18K Yellow Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
5.71 carat surrounded by the frame of black onyx weight 2.32 carat, this entire ring studded in 18k
Category

21st Century and Contemporary Indian Modern Fashion Rings

Materials

Amethyst, Onyx, 18k Gold, Yellow Gold

Black Onyx & Round Brilliant Pink Tourmaline 18K Gold Young Ring
By Malpani Jewels
Located in Hung Hom, HK
A new addition to our collection, a 0.47 carat of pink tourmaline is set in 18K Gold with jet black
Category

2010s Hong Kong Art Nouveau Band Rings

Materials

Onyx, Tourmaline, 18k Gold

18k Yellow Gold Ethiopian Opal with Black Onyx and Diamonds
By Avanti
Located in Carrollton, TX
: 2.62 cts Opal: 52 cts Metal: 18k Yellow gold Black Onyx
Category

2010s American Contemporary Pendant Necklaces

Materials

Opal, Diamond, Onyx, 18k Gold, Yellow Gold

Bvlgari 18K Yellow Gold Coral, Black Enamel, Onyx Earrings
By Bulgari
Located in New York, NY
intricate classic revival patterns fashioned from solid 18 karat yellow gold, adorned with striking black
Category

20th Century Italian Modern Clip-on Earrings

Materials

Coral, Onyx, 18k Gold, Yellow Gold, Enamel

Onyx Diamond Long Earrings 18K
Located in North Hollywood, CA
of Diamonds heading the Onyx. Perfect you will keep these in your collection forever. I love black
Category

2010s Spanish Art Deco Dangle Earrings

Materials

Diamond, Onyx, 18k Gold

Onyx Diamond Long Earrings 18K
Onyx Diamond Long Earrings 18K
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H 0.5 in W 0.37 in L 2.25 in
Black Onyx Dangle Earrings With Diamonds Made In 18k Gold
By Artisan NYC
Located in New York, NY
18KT:14.568g,D:2.01ct, ONYX:33.00ct,
Category

21st Century and Contemporary Indian Contemporary Dangle Earrings

Materials

Onyx, Diamond, 18k Gold

Diamond Carved Black Onyx Hinged Bangle Bracelet, 18K Yellow Gold
Located in McLeansville, NC
A vintage 18 karat yellow gold diamond and carved black onyx hinged bangle bracelet. This heavy
Category

Vintage 1970s Bangles

Materials

Diamond, Onyx, 18k Gold, Yellow Gold

Black Onyx and Diamond 18K Yellow Gold Ring, circa 1970s
Located in Beverly Hills, CA
One black onyx and diamond 18K yellow gold ring centering one round cabochon black onyx stone
Category

20th Century Cocktail Rings

Materials

Diamond, Onyx, Yellow Gold, Gold, 18k Gold

Contemporary Black Onyx & Diamonds Earrings in 18k Solid Gold
Located in New Delhi, DL
These Contemporary Black Onyx & Diamonds Earrings are crafted in 18k Solid Gold. They feature a
Category

21st Century and Contemporary Indian Art Deco Dangle Earrings

Materials

Onyx, Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

14.2 Carat Black Onyx Cufflinks With Diamond & 18k Rose Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
14.2 Carat Black Onyx Cufflinks With Diamond & 18k Rose Gold Pair of 18k Rose gold buckle
Category

21st Century and Contemporary Indian Classical Roman Cufflinks

Materials

Diamond, Onyx, 18k Gold, Rose Gold

Ladies Antique 18K White Gold Black Onyx Diamond Cocktail Ring
Located in Houston, TX
grams Ladies 18K white gold diamond and onyx antique cocktail ring with a split euro-shank. Engraved
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, Onyx, 18k Gold, White Gold

Vintage 18K Yellow Gold Black Onyx and Diamond Dome Ring
Located in Henderson, NV
, supported by custom cut black onyx shoulders. 26 round brilliant cut diamonds: 1.00ctw. Color: G-H, Clarity
Category

Mid-20th Century Dome Rings

Materials

Diamond, Onyx, Gold, 18k Gold, Yellow Gold

18k White Gold Black Onyx Art Deco Diamond Emerald Earrings
By Avanti
Located in Carrollton, TX
These stunning art deco looking earrings are amazing! The custom cut black onyx surround the
Category

2010s American Art Deco Stud Earrings

Materials

Emerald, Onyx, Diamond, 18k Gold, White Gold

Ippolita 18K Yellow Gold Rock Candy Lollipop Black Onyx Necklace #16085
By Ippolita
Located in Washington Depot, CT
Ippolita 18K Yellow Gold Rock Candy Lollipop Black Onyx Necklace Black onyx pendant with 18 karat
Category

21st Century and Contemporary Chain Necklaces

Materials

Onyx, Yellow Gold, 18k Gold, Gold

Cartier 18K White Gold Clash Diamond and Black Onyx Earrings
By Cartier
Located in New York, NY
hoop earrigs. Crafted in 18k white gold, encrusted with round cut diamonds and set with black onyx
Category

21st Century and Contemporary French Modern Hoop Earrings

Materials

Diamond, Onyx, 18k Gold, White Gold

Contemporary Black Onyx & Diamonds Necklace in 18k Solid Gold
Located in New Delhi, DL
The Black Onyx Necklace & Diamonds Necklace is a captivating & modern piece of jewelry crafted in
Category

21st Century and Contemporary Indian Art Deco Chain Necklaces

Materials

Onyx, Diamond, Gold, 14k Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

Black Onyx Tassel Necklace With Diamonds & Chain In 18k Gold
By Artisan NYC
Located in New York, NY
them. Tassel Pendant Length: 3 inches 18K:16.3g Diamond: 55.07ct BLACK ONYX:1.55ct
Category

21st Century and Contemporary Indian Modern Chain Necklaces

Materials

White Diamond, Onyx, Diamond, 18k Gold, White Gold

Piaget 8706D2 18k Yellow Gold Black Onyx Diamond Ladies Watch
By Piaget
Located in Boca Raton, FL
: 18k Yellow Gold Diamond bezel Dial: Black Onyx dial with yellow gold hands and Diamond hour markers
Category

Late 20th Century Swiss Wrist Watches

Materials

Diamond, White Diamond, Onyx, 18k Gold, Yellow Gold

Handmade 18K Yellow Gold Earring with Black Onyx
Located in New York, NY
Handmade earring Mint condition Gender Women 18K Yellow Gold Earring with Black Onyx Measurement
Category

21st Century and Contemporary Drop Earrings

Materials

18k Gold, Yellow Gold

David Webb Platinum & 18K Yellow Gold Black Onyx Dome Ring
By David Webb
Located in New York, NY
Oversized black onyx dome ring by David Webb. Crafted in 18K yellow gold. Ring diameter: 26mm Sits
Category

20th Century American Modern Cocktail Rings

Materials

Onyx, 18k Gold, Yellow Gold, Platinum

18k Rose Gold Cufflinks with Rubylite and Hand-Cut Black Onyx
Located in New York, NY
. Surrounding the radiant rubylite are meticulously hand-cut black onyx stones, adding a striking contrast and
Category

2010s American Cufflinks

Materials

Onyx, 18k Gold, Rose Gold

18K Gold Tiffany & Co. Cuff Links Inset with Malachite & Black Onyx
By Tiffany & Co.
Located in Perry, FL
Stunning pair of 18k gold Tiffany & Co. cuff links inset with Malachite & Black Onyx. Signed “18ct
Category

21st Century and Contemporary Cufflinks

Materials

Malachite, Onyx, 18k Gold

1980S Onyx 18K Yellow Gold Black Dot Tuxedo Cufflinks
Located in Miami, FL
.  Crafted in solid 18K Yellow Gold,  composed of 6 round-cut, flush set, Black Onyx stones. The complete
Category

Vintage 1980s American Modern Cufflinks

Materials

Onyx, Yellow Gold

Michael Bondanza 18k Gold & Platinum Citrine Black Onyx & Diamond Stud Earrings
By Michael Bondanza
Located in Montclair, NJ
--Stone(s):-- (2) Natural Genuine Black Onyx - Custom Cut - Black Color - 15.5x15.3mm (approx.) (2
Category

21st Century and Contemporary Stud Earrings

Materials

Citrine, Diamond, Onyx, 18k Gold, Platinum

Pair Tiffany & Co 18K Gold & Black Onyx Earrings by Angela Cummings
By Angela Cummings for Tiffany & Co.
Located in Philadelphia, PA
. In 18 karat yellow gold with inlaid black onyx cabochons. (The onyx of each is sprinkled with tiny
Category

20th Century Unknown Modern Clip-on Earrings

Materials

Onyx, 18k Gold

Michael Bondanza 18k Gold Platinum Diamond Citrine Black Onyx Statement Necklace
By Michael Bondanza
Located in Montclair, NJ
/ 60.21ctw (approx.) 18 Natural Genuine Black Onyx - Custom Cut - Inlaid Set - Pure Black Color - 17.4x10.2mm
Category

1990s Choker Necklaces

Materials

Citrine, Diamond, Onyx, 18k Gold, Platinum

Van Cleef & Arpels Black Onyx and White Diamonds Dome Ring, 18K
By Van Cleef & Arpels
Located in New York, NY
A bold and beautiful Van Cleef & Arpels Black Onyx and White Diamonds Dome Cocktail Ring made in 18
Category

20th Century Dome Rings

Materials

White Diamond, Onyx, 18k Gold

Black Onyx Mother-Of-Pearl Toggle Double Sided Bracelet 18K Gold, 1970
Located in Herzelia, Tel Aviv
Black Onyx and white Mother-Of-Pearl Toggle (Double Sided) Bracelet. Set in 18K Yellow Gold
Category

Vintage 1970s Israeli Link Bracelets

Materials

Onyx, Pearl, 18k Gold

Fancy 18k Gold Black Onyx & Bead Tourmaline Dangle Tassel Chandelier Necklace
Located in Montclair, NJ
(approx.) (4) Natural Genuine Onyx - Round Bead Cut - Black Color - 4.5mm (approx.) (18) Natural Genuine
Category

1990s Drop Necklaces

Materials

Onyx, Ruby, Sapphire, Tourmaline, 18k Gold, White Gold

4.48 Carat Aquamarine & Black onyx Ring Stud in 18k Rose Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
4.48 Carat Aquamarine & Black onyx Ring Stud in 18k Rose Gold Aquamarine - 4.48 Carat. Black onyx
Category

21st Century and Contemporary Indian Modernist Solitaire Rings

Materials

Aquamarine, Onyx, 18k Gold, Rose Gold

18k Gold Godronné Ring with a Ruby Cabochon and Black Onyx
Located in Magenta, IT
A 18k godronné gold ring adorned with a ruby cabochon framed by two ogival onyx plaques. Beautiful
Category

Late 20th Century French Art Nouveau Cocktail Rings

Materials

Onyx, Ruby, 18k Gold

Earrings Onyx Diamond 18k yellow Gold
Located in The Hague, ZH
18 kt yellow gold earrings set with onyx and single cut cut diamond 0.10 ct - F/G - VS/SI detailed
Category

2010s Dutch Modern Clip-on Earrings

Materials

Diamond, Onyx, 18k Gold, Yellow Gold

Earrings Onyx Diamond 18k yellow Gold
Earrings Onyx Diamond 18k yellow Gold
No Reserve
W 0.6 in L 1.19 in
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Black Onyx 18k For Sale on 1stDibs

You are likely to find exactly the black onyx 18k you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. Find an antique version now, or shop for 596 vintage or 535 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a black onyx 18k may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. Creating a black onyx 18k has been a part of the legacy of many jewelers, but those produced by Van Cleef & Arpels, Cartier and Bulgari are consistently popular. 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 mixed cut and cabochon alternatives. Most of our black onyx 18k for sale are for women, but there are 352 pieces available to browse for men.

How Much is a Black Onyx 18k?

Prices for a black onyx 18k can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $173 and can go as high as $95,000, while this accessory, on average, fetches $3,954.
Questions About Black Onyx 18k
  • 1stDibs ExpertOctober 12, 2021
    The 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, 2022
    One 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.
  • A 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, 2023
    Whether 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.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 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, 2023
    The 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.