Black Opal 18k Diamonds
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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
5.82ct 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
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
.
SPECIFICATIONS
Opal Type: Black Opal
Opal Weight: 2.63ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds
Category
21st Century and Contemporary Australian Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
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
Australian 2.25 Carat Black Opal, Diamond & 18k Gold Earrings
Located in MAIN BEACH, QLD
Diamonds: 0.18ct D IF - F VVS
Metals: 18K solid Gold
THE GRYFFIN OPAL DIFFERENCE
By investing in solid
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
Australian Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
:
Opal Type: Black Opal
Opal Weight: 12.28ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds
Category
Late 20th Century Australian Art Deco Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
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
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
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
Australian 3.29ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
.
SPECIFICATIONS
Opal Type: Black Opal
Opal Weight: 3.29ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds
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
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 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
Australian 1.35ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
Weight: 1.35ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds: 0.17ct D IF - F VVS
Metals: 18K
Category
Late 20th Century Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Platinum
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
Australian 1.45ct Black Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
.
SPECIFICATIONS
Opal Type: Black Opal
Opal Weight: 1.45ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds
Category
Late 20th Century Australian Modern Cocktail Rings
Materials
Diamond, Opal, Black Opal, Platinum, 18k Gold
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
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
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
Australian 5.65ct Black Opal, Diamond & 18k White Gold Necklace
Located in MAIN BEACH, QLD
: Black Opal
Opal Weight: 5.65ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds: 0.32ct D IF - F
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
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
Australian 1.25ct Black Opal, Diamond, 18k Yellow & White Gold Ring
Located in MAIN BEACH, QLD
.
SPECIFICATIONS
Opal Type: Black Opal
Opal Weight: 1.25ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Black Opal, Opal, Diamond, White Gold, 18k 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 0.75ct Black Opal, Diamond, 18k Yellow & White Gold Ring
Located in MAIN BEACH, QLD
Opal Type: Black Opal
Opal Weight: 0.75ct
Opal Origin: Lightning Ridge, NSW, Australia
Diamonds: 0.31ct
Category
21st Century and Contemporary Australian Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White 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
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 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
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
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
Black Opal And Diamond Ring
Located in New Orleans, LA
encircled by diamonds, multiplying its brilliance. The ring is set in lustrous 18K yellow gold.
The opal
Category
21st Century and Contemporary Modern Fashion Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
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
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
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
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
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H 0.94 in W 0.6 in
Australian 2.05ct Black Opal, Diamond and 18K White Gold Ring
Located in MAIN BEACH, QLD
, this ring will be admired by all who see it. Solid natural Australian Black Opal, set in 18K white gold
Category
21st Century and Contemporary Australian Engagement Rings
Materials
Diamond, Opal, Black Opal, White Gold
Natural Australian 2.73ct Black Opal/Diamond Engagement Ring 18K White Gold
By Renata Bernard
Located in Sydney, AU
of this 2.73 carat black opal from Lightning Ridge are drawn out by 26 brilliant-cut (0.118ct) and 35
Category
2010s Australian Contemporary Engagement Rings
Materials
Black Opal, Diamond, Opal, 18k Gold, White Gold
Platinum and 18K Yellow Gold Black Opal, Emerald and Diamond Ring
Located in Philadelphia, PA
Nestled amidst vibrant green emeralds, the black opal ring exuded an enchanting allure.
The center
Category
21st Century and Contemporary Unknown Fashion Rings
Materials
Emerald, Black Opal, Opal, Diamond, Yellow Gold, 18k Gold, Platinum
Edwardian French Black Opal & Diamond 18k Yellow Gold & Platinum Ring
Located in MIAMI, FL
18k yellow gold.
The highlight of the ring, the black opal gemstone display's a gorgeous play of
Category
Early 20th Century French Edwardian Cocktail Rings
Materials
Diamond, Opal, Black Opal, Yellow Gold, Platinum
Black Opal Oval and Diamond Pendant Necklace in 18k White Gold
Located in Los Angeles, CA
Beautiful 10.57 ct. black opal oval cabochon with 1.24 ct. good quality white diamond rounds
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Opal, Black Opal, White Gold
Natural Black Opal Dangle Earrings Blue Sapphires and Diamonds 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Black Opals = 5.65
Category
21st Century and Contemporary Contemporary Dangle Earrings
Materials
Diamond, White Diamond, Opal, Sapphire, Blue Sapphire, Black Opal, Gold,...
Freeform Black Opal Triangle and Diamond Ring in 18k White Gold
Located in Honolulu, HI
Item Specifications:
Metal: 18K White Gold
Style: Opal and Diamond Ring
Total Weight: 16.10
Category
Late 20th Century Unknown Modern Cocktail Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White 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
Black Opal Dangle Earrings With Tanzanites and Diamonds 24 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Black Opals = 20.81
Category
21st Century and Contemporary Contemporary Dangle Earrings
Materials
Diamond, White Diamond, Opal, Tanzanite, Black Opal, Gold, 18k Gold
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H 1.97 in W 0.75 in
Natural Australian 3.82 Ct Black Opal Diamond Engagement Ring 18K White Gold
By Renata Bernard
Located in Sydney, AU
The ‘Gabriella’ opal engagement ring features a gracefully elegant black opal (3.82ct) sourced from
Category
2010s Australian Contemporary Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
4.25 Carat Asymmetrical Australian Black Opal Diamond Platinum & 18k Yellow Gold
Located in Beverly Hills, CA
mesmerizing 4.25CT black opal from Australia set with 0.12 carats of white round brilliant-cut diamonds
Category
21st Century and Contemporary American Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold, Platinum
Natural Black Opal Emerald And Diamond Dangle Earrings 18K Rose Gold
Located in Laguna Niguel, CA
= 0.68 Carats
Diamonds = 1.78 Carats
Cut: Mixed Cut
Earrings Dimensions: 42 x 12 mm
Metal: 18K Rose Gold
Category
Late 20th Century Art Deco Dangle Earrings
Materials
Diamond, White Diamond, Emerald, Opal, Black Opal, Gold, 18k Gold, Rose ...
Free Shipping
H 1.66 in W 0.48 in
Australian 6.10ct Black Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
: Black Boulder Opal
Opal Weight: 6.10ct
Opal Origin: Winton, QLD, Australia
Diamonds: 0.42ct D IF - F VVS
Category
21st Century and Contemporary Australian Choker Necklaces
Materials
Diamond, Opal, 18k Gold, Platinum
Natural Australian 1.36ct Black Opal Engagement Ring 18k White Gold with Diamond
By Renata Bernard
Located in Sydney, AU
18K yellow gold. The tapered band is encircled with 2 shining diamonds, enhancing the opals natural
Category
2010s Australian Contemporary Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Natural Australian 3.35 Carat Black Opal Diamond Engagement Ring 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
The ‘Gabriella’ opal engagement ring features a gracefully elegant and unique black opal (3.35ct
Category
2010s Australian Contemporary Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
Lady's Black Opal and Diamonds Pendant in 18k White Gold
Located in New York, NY
One lady's black opal in a green only fire color. Vivid saturation scale with a flash fire pattern
Category
Vintage 1970s American Art Deco Brooches
Materials
Diamond, Opal, Black Opal, 14k Gold, White Gold
Premium Quality Australian 2.45ct Black Opal Pendant With Diamonds in 18K Gold
By Renata Bernard
Located in Sydney, AU
Utterly divine, the ‘Above The Clouds’ opal pendant features a stunning black opal (2.45ct) sourced
Category
2010s Australian Contemporary Pendant Necklaces
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Free Shipping
H 0.78 in W 0.58 in
Snowflake Semi Black Opal & Diamond Engagement Ring 18K Yellow Gold
Located in Suwanee, GA
Snowflake Design Australian Semi-Black Opal & Diamond Engagement Wedding Ring 18K Yellow Gold
Category
2010s American Arts and Crafts Engagement Rings
Materials
Diamond, Opal, Black Opal, Yellow Gold
Vintage Black Opal & Onyx Diamond Cufflinks
Located in Winter Springs, FL
octagonal onyx sections are inlayed with fiery pieces of natural black opal exhibiting flashes of red
Category
Early 20th Century Art Deco Cufflinks
Materials
Diamond, Onyx, Opal, Black Opal, 18k Gold
"Vectra" Earrings with Ethiopian Black Opals, Diamonds & Tsavorites in 18K Gold
By Eytan Brandes
Located in Sherman Oaks, CA
karat gold with 18 karat gold butterfly backs.
WEIGHTS & MEASUREMENTS:
Opals - approx. 17mm x 10.5mm
Category
2010s American Contemporary Chandelier Earrings
Materials
Black Opal, Tsavorite, Opal, White Diamond, Diamond, Yellow Gold, 18k Go...
Free Shipping
W 0.71 in L 2.13 in
- 1
- ...
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Black Opal 18k Diamonds For Sale on 1stDibs
There is a broad range of black opal 18k diamonds for sale on 1stDibs. Frequently made of gold, 18k gold and yellow gold, these items were constructed with great care. Find a collection of 222 vintage versions or 452 modern creations for a more contemporary example of these cherished accessories. Our inventory has long been popular, and it includes earlier versions that date to the 19th Century and newer variations that were made as recently as the 21st Century. There are many different pieces in our collection of black opal 18k diamonds to choose from, but contemporary and Art Deco black opal 18k diamonds are of considerable interest. There have been many well-made iterations of these items over the years, but those made by Renata Bernard, Joke Quick and Giulians are often thought to be among the most beautiful. Lovers of these pieces agree that it’s a versatile accessory, but a selection from our variety of 500 opal versions can add an especially stylish touch. Today, if you’re looking for cabochon black opal 18k diamonds and are unable to find the perfect match, our selection also includes oval cut and round cut alternatives. If you’re browsing the variety of black opal 18k diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.
How Much are Black Opal 18k Diamonds?
On average, black opal 18k diamonds at 1stDibs sell for $8,485, while they’re typically $508 on the low end and $4,375,000 for the highest priced versions of this item.
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