18k Black Opal
9
to
103
649
283
796
452
311
145
61
60
54
37
31
24
17
16
13
12
12
9
8
8
4
4
4
4
3
2
2
1
1
1
1
86
31
19
18
17
Sort By
18K Black Opal And Diamond Swan Brooch P-923RTX-N
Located in Addison, TX
Dazzle and enchant with this exquisite 18K Black Opal and Diamond Swan Brooch, a true masterpiece
Category
Vintage 1920s Art Nouveau Brooches
Materials
Diamond, White Diamond, Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Black Crystal Opal 5.23 Carat Pendant with Diamond Surround
Located in North Hollywood, CA
purple and greens. Comes with a 18" long chain, pendant is set in 18K. Black Opal is a special stone as
Category
2010s American Modern Pendant Necklaces
Materials
Crystal, Diamond, Opal, 18k Gold
Free Shipping
H 1.97 in W 0.44 in D 0.14 in Dm 0.79 in L 0.81 in
Natural Australian 10.97ct Black Opal and Diamonds Cocktail Ring 18K Yellow Gold
By Opal Minded
Located in Sydney, AU
The gem at the centre of the "Contrarian" opal ring is an exquisitely unusual black opal (10.97ct
Category
2010s Australian Contemporary Cocktail Rings
Materials
Diamond, Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Natural Australian 7.43ct Boulder Opal and Diamond Cocktail Ring 18k Yellow Gold
By Opal Minded
Located in Sydney, AU
)
Setting length: 67.37mm
Metal: 18K Yellow Gold
This opal ring arrives in a gun-metal aluminium box
Category
2010s Australian Contemporary Cocktail Rings
Materials
Opal, Black Opal, Diamond, Gold, 18k Gold, Yellow Gold
5.47ct Black Opal & 18K Gold Necklace
Located in MAIN BEACH, QLD
Opal Type: Black Opal
Opal Weight: 5.47ct
Opal Origin: Lightning Ridge, NSW, Australia
Metals: 18K
Category
21st Century and Contemporary Australian Pendant Necklaces
Materials
Black Opal, Opal, 18k Gold
18K Art Deco Black Opal Ring
Located in Hummelstown, PA
Like seeing the Earth from outer space, this mesmerizing black opal cabochon is filled with
Category
Vintage 1920s Art Deco Cocktail Rings
Materials
Black Opal, 18k Gold
Black Opal Gold Ring 18K Australian genuine opal precious wedding anniversary
By Alexey Gabilo
Located in Berlin, DE
18K yellow gold ring with natural Black Opal
Opal origin - Australia
weight of the opal - 1.5 carat
Category
2010s German Artisan Solitaire Rings
Materials
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Black Opal Necklace 18k gold with silver
Located in The Hague, ZH
Gold with silver necklace set with opal - 43 cm
Detailed description
The necklace is 43 cm long
Category
2010s Dutch Modern Choker Necklaces
Materials
Black Opal, 18k Gold, Silver
5.82ct Black Boulder Opal, Diamond & 18K Gold Necklace
Located in MAIN BEACH, QLD
What an amazing black boulder opal we have here. Bright reds, greens and blues in this bespoke
Category
21st Century and Contemporary Australian Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold
Black Opal Pin Brooch 18K Yellow Gold Hand Made
Located in Dearborn, MI
Genuine Black Opal 18K Yellow Gold Pin Brooch Hand Made
Features a Fiery 12 x 11.7mm Black Opal
Category
2010s Brooches
Materials
Opal, Black Opal, 18k Gold, Yellow Gold
Australian 1.84ct Black Opal, Diamond & 18K Gold Ring
Located in MAIN BEACH, QLD
A beautiful flagstone pattern solid Australian Black Opal set in solid 18K gold and accented with
Category
Late 20th Century Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold
Australian 2.20ct Black Opal, Diamond & 18K Gold Necklace
Located in MAIN BEACH, QLD
also solid 18K gold and the perfect accompaniment to this pendant.
SPECIFICATIONS
Opal Type: Black
Category
21st Century and Contemporary Australian Art Deco Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold
Australian 2.04ct Black Opal, Diamond & 18K Gold Ring
Located in MAIN BEACH, QLD
sparkling white, high jewellery grade, diamond completes this work of art.
SPECIFICATIONS
Opal Type: Black
Category
Late 20th Century Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold
Australian 2.63ct Black Opal, Diamond, 18k Gold Ring
Located in MAIN BEACH, QLD
The deep blues shimmer in this Australian Black Opal like glowing flashes of an evening ocean. The
Category
21st Century and Contemporary Australian Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Australian Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
A classic beauty from a bygone era. This magnificent black opal with its deep mysterious blues
Category
Late 20th Century Australian Art Deco Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
Australian 2.25 Carat Black Opal, Diamond & 18k Gold Earrings
Located in MAIN BEACH, QLD
Rare it is to find two black opals that match. These beautiful stones have been cut from the same
Category
2010s Australian Dangle Earrings
Materials
Diamond, Opal, Black Opal, 18k Gold
Free Shipping
H 1.2 in W 0.45 in D 0.13 in
18k GIA 4.39ct Black Opal and Diamond Ring
Located in Big Bend, WI
18K white gold Australian black opal and diamond ring. There is a GIA report #2225667539 stating
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, Opal, Black Opal
1.44 Carat Australian Black Opal, Diamond & 18k Gold Earrings
Located in MAIN BEACH, QLD
These lovely black opal and diamond screw-back earrings are just adorable. Elegance mixed with
Category
2010s Australian Clip-on Earrings
Materials
Diamond, Opal, Black Opal, Platinum, 18k Gold
Australian 2.43ct Black Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
holds a freeform shaped black opal surrounded in 18K yellow gold and high jewellery grade brilliant
Category
21st Century and Contemporary Australian Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
Australian 1.54ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
When words are not enough, this ring says it all. Such an amazingly beautiful Solid Black Opal set
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
Lightning Ridge Black Opal Inlay Ring 18K White Gold
Located in Carlsbad, CA
Lightning Ridge Black Opal
(Cut: Mixed, Color: Blue, Origin: Natural)
Metal = 18K White Gold
Ring
Category
21st Century and Contemporary Contemporary Band Rings
Materials
Opal, Black Opal, Gold, 18k Gold, White Gold
6.31tcw 18K Natural Black Opal & Diamond Statement Ring
Located in Jupiter, FL
Displayed is a ravishing, Australian black opal and diamond right hand ring. This piece is as chic
Category
2010s American Art Deco Fashion Rings
Materials
Diamond, Opal, Black Opal
Black Opal and 18k Yellow Gold Handmade Band Ring
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This rich black opal ring will add a touch of colorful elegance to every day! Featuring a 1.28
Category
21st Century and Contemporary American Artisan Band Rings
Materials
Black Opal, Opal, Gold, Yellow Gold, 18k Gold
Australian 3.29ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
An amazing bright green black opal with a sparkling blue, what a stunning stone. It shows a bright
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Black Opal, Diamond, Opal, Platinum, 18k Gold
Australian 16.04ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
Some rings are cute, others are elegant, but some are meant for a queen. A black opal direct from
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
Australian Black Opal Sapphire Diamond 18k Yellow Gold Ring
Located in Beverly Hills, CA
A lovely natural black Australian opal set in the middle of a unique yellow gold ring. The opal
Category
21st Century and Contemporary American Fashion Rings
Materials
Diamond, Opal, Sapphire, Black Opal, 18k Gold, Yellow Gold
Mid-Century Black Opal and Diamond 18K White Gold Pendant
Located in Beverly Hills, CA
One black opal and diamond 18K white gold pendant centering one pear-shaped cabochon black opal
Category
Vintage 1950s Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Australian 1.35ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
yourself lost in their beauty. Solid 18K gold ring with a magnificent blue-green solid Australian Black
Category
Late 20th Century Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
Lady's Black Opal and Pendant in 18k Yellow Gold
Located in New York, NY
One lady's boulder black opal in a blue-green fire color. Vivid saturation scale with flash fire
Category
Vintage 1970s American Art Deco Brooches
Materials
Opal, Black Opal, 18k Gold, Yellow Gold
Australian 1.45ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
Blue-green black opals are all the rage, and this one will not disappoint. It is a very bright
Category
Late 20th Century Australian Modern Cocktail Rings
Materials
Diamond, Opal, Black Opal, Platinum, 18k Gold
Mineable Boulder Opal, Diamonds, and Black Opal Broach in 18k Yellow Gold
Located in New York, NY
One lady's semi-black peacock opal with multicolor fire pattern. Saturation scale is vivid with a
Category
Vintage 1970s American Art Deco Brooches
Materials
Diamond, Opal, Black Opal, Yellow Gold
Free Shipping
W 1.82 in L 0.83 in
Australian 1.85ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
. Timeless beauty showcasing the magnificence of solid Australian Black Opal, sparkling white diamond
Category
21st Century and Contemporary Australian Art Deco Cocktail Rings
Materials
Diamond, Opal, Black Opal, Platinum, 18k Gold
Estate Faceted Black Pearl, Black Opal, Diamond 18K Gold Platinum Cocktail Ring
Located in New York, NY
Centering a 13.4mm faceted silvery black freshwater cultured pearl, accented by black opals and
Category
20th Century Cocktail Rings
Materials
Diamond, Opal, Black Pearl, Black Opal, 18k Gold, Platinum, Yellow Gold
5.09ctw Australian Natural Black Opal Pendant Necklace 18k White Gold
Located in Houston, TX
This beautiful pendant features a natural 5.09ctw natural black opal set in 18 karat white gold on
Category
21st Century and Contemporary Australian Modern Pendant Necklaces
Materials
Opal, Black Opal, 18k Gold, White Gold
Natural Australian 4.21ct Black Opal Diamonds Necklace 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
coloured Australian black opal (4.21ct) displays an intense green, indigo and gold colour-play that strikes
Category
2010s Australian Contemporary Drop Necklaces
Materials
Black Opal, Diamond, Opal, 18k Gold, Yellow Gold
Free Shipping
H 1.03 in W 0.59 in
Australian 1.25ct Black Opal, Diamond, 18k Yellow & White Gold Ring
Located in MAIN BEACH, QLD
solid Australian Black Opal with shimmering orange, yellow, blues and greens that take you into its
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Black Opal, Opal, Diamond, White Gold, 18k Gold
Australian 5.65ct Black Opal, Diamond & 18k White Gold Necklace
Located in MAIN BEACH, QLD
embodies that ideal. It features a stunning black opal with deep blues and greens at its centre, with a
Category
21st Century and Contemporary Australian Pendant Necklaces
Materials
Diamond, Opal, Black Opal, White Gold
Free Shipping
W 0.96 in D 0.34 in L 0.86 in
Australian 0.75ct Black Opal, Diamond, 18k Yellow & White Gold Ring
Located in MAIN BEACH, QLD
A beautiful watermelon-coloured black opal is central to this gold ring. The centre of the ring is
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
18K White Gold Oval Cut Black Opal Diamond Ring
Located in Great Neck, NY
A phenomenal Australian black opal ring boasting a glowing blue-green oval center stone weighing
Category
2010s Unknown More Rings
Materials
Diamond, Opal, Black Opal, White Gold
Black Opal Diamond Ring, 18k White Gold, Blue Green Opal w Diamond Halo Ring
By Five Star Jewelry
Located in Austin, TX
These stunning black opals surrounded by polished 18k white gold and dripping with gorgeous
Category
21st Century and Contemporary American Modern Fashion Rings
Materials
Black Opal, Diamond, Opal, 18k Gold, White Gold
6.17 Carat Australian Black Opal Diamond 18k White Gold Pendant
Located in Beverly Hills, CA
A fine natural black opal from Lightning Ridge, Australia takes center stage! It weighs an
Category
21st Century and Contemporary American Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Black Opal and Diamond Pendant Necklace in 18k White Gold
Located in Los Angeles, CA
Gorgeous 0.91 ct. black opal ova with 0.52 ct. good quality white diamond rounds. Handmade in 18k
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, Opal, Black Opal, White Gold
11.80Grams Black Opal & Diamonds Ring, Set in 18K Yellow Gold
Located in New York, NY
This exquisite black opal ring measures around 24x15MM and is an impressive 16.96CT in weight. The
Category
21st Century and Contemporary American Aesthetic Movement Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
18k Gold Short Necklace with Opal Beads Australian Boulder Opal Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A lovely and intriguing necklace with a mesmerising natural Australian black opal pendant strung on
Category
2010s Dutch Artisan Beaded Necklaces
Materials
Opal, Black Opal, 18k Gold
Free Shipping
W 0.43 in L 16.54 in
Black Opal and Diamond Cluster Ring in 18k White Gold
Located in Los Angeles, CA
Gorgeous 7.40 ct. black opal ovals with 1.17 ct. good quality, white, and bright diamond rounds
Category
21st Century and Contemporary Cocktail Rings
Materials
Diamond, Opal, Black Opal, White Gold
Australian 12.94ct Black Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
beautiful. Dress to impress; Black Boulder Opal set in solid 18K gold and platinum, accented by stunning
Category
Late 20th Century Australian Art Deco Cocktail Rings
Materials
Diamond, Opal, Black Opal, Platinum, 18k Gold
Lady's Black Opal and Diamonds Ring in 18k White Gold
Located in New York, NY
One lady's black opal in blue-green fire color. Vivid saturation scale with pinfire pattern
Category
Vintage 1970s American Art Deco Dome Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Opal Studs 18K Gold Earrings Natural Australian Opal
Located in Berlin, DE
18K yellow gold stud earrings with bright Black Opal
gemstone origin - Australia
gem size is 5 x 7
Category
2010s Artisan Stud Earrings
Materials
Opal, 18k Gold, Yellow Gold
Vintage 2.02 Carat Black Opal and Diamond Ring 18k Yellow Gold
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 2.02 carat opal and 0.48 carat diamond, 18 carat yellow
Category
20th Century Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
Natural Untreated Australian 2.07ct Black Opal Pendant Necklace 18K White Gold
By Renata Bernard
Located in Sydney, AU
black opal (2.07ct) hailing from Lightning Ridge, Australia. Set in our elegant 18K white gold, this
Category
2010s Australian Contemporary Pendant Necklaces
Materials
Opal, Black Opal, 18k Gold, White Gold
Free Shipping
H 0.95 in W 0.28 in
Natural Untreated Australian 0.35ct Black Opal Pendant Necklace 18K White Gold
By Renata Bernard
Located in Sydney, AU
The 'Swan' pendant represents the elegance and strength of this rare bird. Lovely black opal
Category
2010s Australian Contemporary Pendant Necklaces
Materials
Opal, Black Opal, 18k Gold, White Gold
Free Shipping
H 0.63 in W 0.37 in
11 Carat Australian Black Opal Certified "Lightening Ridge" Mine 18K Ring
By Malpani Jewels
Located in Hung Hom, HK
Black opals from Lightning Ridge are among the most prized gems in the world. The name is inspired
Category
2010s Hong Kong Art Nouveau Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold
Lady's Black Opal and Diamonds Ring in 18k White Gold
Located in New York, NY
One lady's black opal that is multicolor. Average saturation scale with a pine fire pattern
Category
Vintage 1970s American Art Deco Dome Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Solid Natural Untreated Australian 2.16ct Black Opal Ring 18k White Gold
By Renata Bernard
Located in Sydney, AU
18k white gold, the impeccable black opal (2.16ct) has a vivid play of colour. The blue-green hues
Category
2010s Australian Contemporary Engagement Rings
Materials
Opal, Black Opal, 18k Gold, White Gold
Solid Natural Untreated Australian 13.95 Black Opal Ring 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
elegant design. It carries an impressive 2.73ct black opal ethically sourced from Lightning Ridge
Category
2010s Australian Contemporary Engagement Rings
Materials
Black Opal, Opal, Yellow Gold, 18k Gold
Natural Untreated Australian 1.14ct Black Opal Ring in 18K White Gold
By Renata Bernard
Located in Sydney, AU
black opal (1.14ct) from Lightning Ridge. Set in 18K white gold. One-of-a-kind. Designed by Renata
Category
2010s Australian Contemporary Cocktail Rings
Materials
Opal, Black Opal, White Gold, 18k Gold
12.49 Carat Australian Black Opal Certified "Lightening Ridge" Mine 18K Ring
By Malpani Jewels
Located in Hung Hom, HK
Black opals from Lightning Ridge are among the most prized gems in the world. The name is inspired
Category
2010s Hong Kong Art Nouveau Solitaire Rings
Materials
White Diamond, Opal, Black Opal, 18k Gold
Natural Untreated Australian 7.91ct Black Opal Earrings in 18K White Gold
By Renata Bernard
Located in Sydney, AU
. Precision cut black opals (7.91ct) from Lightning Ridge are set in 18K gold and accented by twinkling
Category
2010s Australian Contemporary Dangle Earrings
Materials
Black Opal, Diamond, Opal, 18k Gold, White Gold
Free Shipping
H 0.91 in W 0.36 in
Natural Untreated Australian 2.14ct Black Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
ring features a vivid black opal (2.14ct) hailing from Lightning Ridge, Australia. The mesmerising blue
Category
2010s Australian Contemporary Cocktail Rings
Materials
Black Opal, Opal, 18k Gold, Yellow Gold
Australian Natural Untreated 12.84ct Black Opal Diamond Drop Earrings 18K Gold
By Renata Bernard
Located in Sydney, AU
pairing of black crystal opals (12.84ct) is complemented by the brilliant flash of 30 diamonds. The opal
Category
2010s Australian Contemporary Drop Earrings
Materials
Diamond, Black Opal, Opal, White Gold, 18k Gold
Free Shipping
H 0.94 in W 0.6 in
- 1
- ...
Get Updated with New Arrivals
Save "18 K Black Opal", and we’ll notify you when there are new listings in this category.
18k Black Opal For Sale on 1stDibs
Find the exact 18k black opal you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and yellow gold — can elevate any look. Our collection of these items for sale includes 491 vintage editions and 761 modern creations to choose from as well. If you’re looking for a 18k black opal from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. A 18k black opal from Renata Bernard, Joke Quick and Tiffany & Co. — each of whom created a beautiful version of this treasured accessory — is worth considering. Take a look at a 18k black opal featuring opal from our inventory today to add the perfect touch to your look. A cabochon version of this piece has appeal, but there are also oval cut and round cut versions for sale. If you’re browsing our inventory for a 18k black opal, 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 18k Black Opal?
Prices for a 18k black opal can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $135 and can go as high as $4,375,000, while this accessory, on average, fetches $7,058.