6.31 cts. Natural Black Opal and Diamond Halo Ring in Platinum
Located in La Jolla, CA
6.31 cts. Natural Black Opal and Diamond Halo Ring in Platinum Natural Black Opal and Diamond Ring features an Oval Natural Black Opal, weighing 6.31 carats, with Royal Blue and Bri...
Diamond, Opal, Black Opal, Platinum
Natural Black Opal and Diamond Ring in Platinum
Located in La Jolla, CA
Natural Black Opal and Diamond Ring in Platinum Black Opal and Diamond Ring features one Natural Oval Cabochon Black Opal weighing 2.36 carats with Blue and Green play of color on a...
Diamond, Opal, Black Opal, Platinum
Natural Black Opal 2.53 ct and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
Natural Black Opal 2.53 ct and Diamond Cocktail Ring in Platinum Natural Black Opal Ring features a 2.53 carat Oval Cabochon Black Opal with flashes of Green, Yellow, Orange, Red, a...
Diamond, Opal, Black Opal, Platinum
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 an 18" chain.
Opal, Black Opal, 18k Gold, White Gold
GIA Natural Black Opal 5.40 ct and Diamond Ring in Platinum
Located in La Jolla, CA
GIA Natural Black Opal and Diamond Ring in Platinum Black Opal and Diamond Ring features a GIA certified Natural Black Opal with Freeform Cabochon shape weighing 5.40 carats with Bl...
Diamond, Opal, Black Opal, Platinum
GIA Certified 2.40ct Natural Black Opal & Diamond Ring 14K Yellow Gold
Located in Media, PA
This is a magnificent GIA-certified natural black opal and diamond ring, masterfully crafted in solid 14K yellow gold, showcasing a mesmerizing and natural play of color.
Opal, Diamond, Black Opal, 14k Gold, Yellow Gold
Natural Black Opal 15.60 carats and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
Natural Black Opal 15.60 carat and Diamond Cocktail Ring in Platinum Large Black Opal and Diamond Ring features Natural Oval Cabochon Black Opal weighing 15.60 carats with flashes o...
Diamond, Opal, Black Opal, Platinum
Natural Black Opal 3.77 carats and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
Natural Black Opal 3.77 carats and Diamond Cocktail Ring in Platinum Black Opal and Diamond Ring features a Center Oval Cabochon Black Opal with flashes of Green and Blue play of co...
Diamond, Opal, Black Opal, Platinum
18K Yellow Gold Natural Black Opal & Diamond Brooch with Play of Color
Located in Chatsworth, CA
Buyer Confidence & FAQs Q: Is the opal natural? Yes, the center stone is a natural black opal with no indications of treatment.
Diamond, Opal, Black Opal, Yellow Gold
GIA Natural Black Opal 6.23 carats and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
GIA certified Natural Black Opal 6.23 ct and Diamond Cocktail Ring in Platinum Natural certified Black Opal Ring features a center Oval Cabochon Black Opal with flashes of Green, Y...
Diamond, Opal, Black Opal, Platinum
COCKTAIL RING- Certified 2.83 Carat Natural Black Opal and Diamonds
Located in Miami, FL
The center stone is a natural double-cabochon black opal weighing 2.83 carats, measuring 12.93 x 8.93 x 3.69 mm.
Diamond, White Diamond, Opal, Black Opal, Platinum
Enchanting 2.65ct Natural Black Opal Oval Cabochon
Located in רמת גן, IL
This captivating collector's gemstone features a 2.65ct natural opal, masterfully finished into a classic oval cabochon that showcases a dramatic and mysterious aesthetic. Verified b...
Opal
Antique Art Deco Platinum J. E. Caldwell Natural Black Opal and Diamond Ring
By J.E. Caldwell & Co.
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum J. E. Caldwell Natural Black Opal and Diamond Ring. This unbelievable Art Deco J.
Diamond, Black Opal, Platinum
Natural Black Opal Stone 1.06 cts in Platinum Ring with Diamonds with GIA Report
Located in Los Angeles, CA
This exquisite ring features a stunning oval-shaped natural black opal, measuring 8.86 x 5.54 x 3.76 mm and weighing 1.06 carats.
Diamond, Opal, Black Opal, Platinum
6.31tcw 18K Natural Black Opal & Diamond Statement Ring
Located in Jupiter, FL
Setting Style: Solitaire with accents Setting Material: 18K Yellow Gold / 7.5 Grams Main Stone: Natual Opal Weight: 5.71cts Measurement: 13.0x12.0mm Shape: Oval Cabochon Cut: Solid ...
Diamond, Opal, Black Opal
Pear-Shaped Natural Black Opal Diamond Ring Solid 14K Yellow Gold
Located in Suwanee, GA
Pear-Shaped Natural Black Opal Diamond Ring in Solid 14K Yellow Gold.
Opal, Diamond, Black Opal, Gold, 14k Gold, Yellow Gold
18K Gold & Patinated Silver Ring with Natural Black Opal and Anthracite Diamonds
By Alexey Gabilo
Located in Berlin, DE
These stones shimmer with a unique, steel-like fire that pairs beautifully with the mysterious depth of the central gem: a natural black opal from Australia, 0.88 carats, full of ele...
Diamond, Opal, Black Opal, Gold, 14k Gold, Yellow Gold, Silver, Sterling...
GIA Certified 5.75 Carats Natural Black Opal & Yellow Diamond Fashion Ring
Located in New York, NY
A one-of-a-kind fashion ring, showcasing a GIA certified 5.75 carats black natural opal with a freeform shape and no indications of heat treatment, set on an extremely rare prong set...
Yellow Diamond, Opal, Black Opal, 18k Gold, Yellow Gold, Platinum
Australian Natural Black Opal & Diamond Cluster Ring set in 18k Yellow Gold
Located in Grantham, GB
18ct Yellow Gold Australian Black Opal & Diamond Cluster Ring Stunning Fiery Natural Australian Black Opal 11.5mm x 8.3mm 10x Round Brilliant Cut Natural Diamonds Carat 0.70 Clarit...
Diamond, Black Opal, Gold, 18k Gold, Yellow Gold
$524Sale Price|30% Off
Natural Black Opal Ring in 925 St. Silver Handmade Vintage Style Statement Ring
Located in Peshawar, PK
Natural Ethiopian Black Opal Ring in 925 Sterling Silver Handmade Vintage Style Genuine Opal Gemstone Ring with Play of Color for Men or Unisex, Engagement, Anniversary, Cocktail &...
Opal, Black Opal, Silver, Sterling Silver
$1,334Sale Price|40% Off
Black Opal Silver Ring Natural Inky Opal Blue Gemstone Christmas gift
Located in Berlin, DE
Silver ring with natural Black Opal gemstone origin - Australia opal measurements - 0.079 x 0.16 x 0,24 in / 2 x 4 x 6 mm opal weight - 0.6 carat ring size - 8 US ring weight - 2.95...
Opal, Black Opal, Silver
6.50 Carat Natural Black Cabochon Opal Diamond Platinum Ring
Located in Stamford, CT
Opal and diamond ring. Translucent silvery black natural oval opal with flashes of green, blue, yellow and orange in a platinum setting with 6 emerald cut accent diamonds. 1 oval c...
Diamond, Opal, Platinum
Black opal solitaire ring, circa 1930.
Located in London, GB
Black opal solitaire ring. Set with an oval cabochon natural black opal in an open back claw setting with an approximate weight of 9.70 carats, to an impressive solitaire design feat...
Black Opal, Opal, Platinum
Investment GIA 4.75ct Black Opal Diamond Halo Ring - .900 Platinum - Rare
Located in Media, PA
A masterwork of fine jewelry, this exquisite ring features a GIA Certified 4.75ct Natural Black Opal. Renowned for its deep, dark body tone, this opal exhibits a vibrant, multidimens...
Diamond, Opal, Black Opal, Platinum
Australian Black Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A fine and precious natural black opal from Australia. It weighs a respectable 1.14 carats and has excellent play-of-color as bright intense flashes of green and blue roll across the...
Diamond, Opal, Black Opal, Platinum
Platinum Australian Black Opal and Diamond Ring
Located in Big Bend, WI
Platinum Australian black opal and diamond ring. This is a natural black opal weighing .45cts and measuring about 7.7mm x 5.5mm.
Diamond, Opal, Black Opal, Platinum
Australian Black Opal Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
A large and impressive natural black opal from Australia! It weighs 6.90 carats and has great play-of-color as flashes of blue and green can be seen across the opal which also has a ...
Diamond, Opal, Black Opal, Platinum
Australian Black Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A fine natural black opal from Australia takes center stage.
Diamond, Opal, Black Opal, Platinum
$12,989Sale Price|40% Off
Black Australian Opal Ivy Ring Patinated black silver anniversary gift special
By Alexey Gabilo
Located in Berlin, DE
Introducing the mesmerizing Magic Natural Black Opal Ivy ring, a true symbol of opulence and sophistication.
Opal, Black Opal, Silver, Sterling Silver
Australian Black Opal Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
A large and impressive ring featuring a natural black opal from Australia! It weighs 4.42 carats and has excellent play-of-color as large and bright flashes of blue and green can be ...
Diamond, Opal, Black Opal, Platinum
Yellow Gold Black Opal Doublet Solitaire Pendant - 14k Oval Cabochon .86ct
Located in Greensboro, NC
Date: May 5, 2026 Metal Content: 14k Yellow Gold Stone Information Natural Black Opal Doublet Carat(s): .86ct Cut: Oval Cabochon Origin: Australian Total Carats: .86ct Style: So...
Opal, Black Opal, 14k Gold, Yellow Gold
Navy Blue Australian Opal ring silver Statement gift for friend anniversary
Located in Berlin, DE
Big silver ring with natural Black Opal weight of the Opal - 21.10 carat size of the ring - 9 US, diameter 19 mm, N 20, 60 circumference ring weight - 15 grams stone measurements - ...
Opal, Black Opal, Silver
Black Opal Yellow Gold Stud Earrings Natural Blue Opal Australian
By Alexey Gabilo
Located in Berlin, DE
18K yellow gold earrings with natural Black Opal black opal origin - Australia Opal measurements - 0.16 x 0.2 x 0.47 in / 4 х 5 х 12 mm Opal weight - 3.25 carats earrings weight - 4...
Opal, Black Opal, Yellow Gold
GIA 7.53ct Black Opal Diamond Platinum Oval Cocktail Ring
Located in Miami, FL
This GIA Natural Black Opal and Diamond Cocktail Ring with a total weight of 11.18 grams.
Diamond, Opal, Black Opal, Platinum
Yellow Gold Black Opal Doublet Diamond Solitaire Slide Pendant - 14k Oval 2.77ct
Located in Greensboro, NC
Date: May 5, 2026 Metal Content: 14k Yellow Gold Stone Information Natural Black Opal Doublet Carat(s): 2.77ct Cut: Oval Cabochon Origin: Australian Diamonds Cut: Round Brilliant...
Diamond, Opal, Black Opal, 14k Gold, Yellow Gold
Black Opal Doublet & Diamond Pave Shoulder 14K White Gold Statement Ring
Located in Miami, FL
Opal doublets are created by bonding a thin slice of natural opal to a darker backing, typically black onyx or ironstone.
Diamond, Opal, Gold, 14k Gold, White Gold
Art Deco Black Opal and Diamond Ring, circa 1920
Located in London, GB
Art Deco black opal and diamond ring. Set to centre with an oval cabochon natural black opal in an open back rubover setting with an approximate weight of 2.75 carats, further decora...
Diamond, Black Opal, Platinum
$207Sale Price|30% Off
Natural Black Fire Opal Ring in 925 Sterling Silver -Handmade with Play of Color
Located in Peshawar, PK
Natural Black Opal Cocktail Ring in 925 Sterling Silver – Handmade with Brilliant vivid Play of Color 💎 GEMSTONE TYPE: Opal ⚖️ RING WEIGHT: 2.44 Grams 💍 RING SIZE: 6.5 US 🪚 ST...
Opal, Fire Opal, Silver, Sterling Silver
6.88 Carat Black Opal Diamond Platinum Cocktail Ring by Meghna Jewels
By Meghna Jewels
Located in Hoffman Estate, IL
An extraordinary statement ring showcasing a mesmerizing natural black opal weighing approximately 6.88 carats, displaying vivid flashes of electric green and deep blue play-of-color...
Diamond, Opal, Black Opal, Platinum
14K Yellow Gold Black Opal Tennis Bracelet, 18.0 Carat Statement 7.5 Inches
Located in Jaipur, IN
This extraordinary bracelet showcases a curated line of natural black opals, each hand-selected for its vivid fire and depth.
Black Opal, 14k Gold, Yellow Gold
Vintage 18k Gold Ring with Black Opal & Diamonds
Located in Aventura, FL
This gorgeous contemporary ring showcases the mesmerizing beauty of natural black opal, meticulously crafted in rich 18kt yellow gold and featuring a captivating 6.05-carat cabochon ...
Diamond, White Diamond, Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Black Opal Diamond Vintage Cocktail Ring 950 Oval Cabochon 10.60ctw Halo
Located in Greensboro, NC
Size: 6 3/4 Sizing Fee: Up 3 sizes for $100 or Down 2 sizes for $50 Era: Vintage Metal Content: Platinum 950 Stone Information Natural Black Opal Carat(s): 8.50ct Cut: Oval Caboc...
Diamond, Opal, Black Opal
Platinum Black Opal & Diamond Bypass Ring - Oval Cabochon 1.52ctw
Located in Greensboro, NC
Size: 5 Sizing Fee: Up 1 size for $80 or Down 1/2 a size for $40 Metal Content: Platinum Stone Information Natural Black Opal Carat(s): .86ct Cut: Oval Cabochon Stone Note: (Austr...
Diamond, Opal, Black Opal, Platinum
$9,600Sale Price|20% Off
14K 18.78 ct Natural Color Play Black Opal Diamonds Pendant Necklace
Located in Kaohsiung City, TW
"14K 18.78 ct Natural Color Play Black Opal Diamonds Pendant Necklace" This necklace features a 18.78-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, Yellow Gold
$5,760Sale Price|20% Off
14K 13.33 ct Natural Color Play Black Opal Diamonds Cocktail Ring
Located in Kaohsiung City, TW
"14K 13.33 ct Natural Color Play Black Opal Diamonds Cocktail Ring" This ring features a 13.33-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, Yellow Gold
Australian Black Opal and Diamond Ring in Platinum, GIA Certified
Located in La Jolla, CA
GIA Certified Natural Australian Black Opal and Diamond Ring in Platinum Australian Black Opal and Diamond Ring features one natural Black Opal oval cabochon, weighing 6.45 carats, ...
Diamond, Opal, Black Opal, Platinum
$12,000Sale Price|20% Off
HRD 14K 16.05 ct Natural Color Play Black Opal&Diamonds Cocktail Ring
Located in Kaohsiung City, TW
"HRD 14K 16.05 ct Natural Color Play Black Opal Diamonds Cocktail Ring" This ring features a 16.05-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
$3,040Sale Price|20% Off
HRD 14K 5.85 ct Natural Color Play Black Opal Diamonds Cocktail Ring
Located in Kaohsiung City, TW
"HRD 14K 5.85 ct Natural Color Play Black Opal Diamonds Cocktail Ring" This ring features a 5.85-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
$4,800Sale Price|20% Off
HRD 14K 12.87 ct Natural Color Play Black Opal Diamonds Cocktail Ring
Located in Kaohsiung City, TW
"HRD 14K 12.87 ct Natural Color Play Black Opal Diamonds Cocktail Ring" This ring features a 12.87-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
Black Opal and Diamond Cluster Ring, circa 1925
Located in London, GB
Black opal and diamond cluster ring. Set to centre with an oval cabochon natural black opal in an open back claw setting with an approximate weight of 13.00 carats, flanked by two re...
Black Opal, Diamond, Opal, Platinum
$9,600Sale Price|20% Off
IGI 14K 15.58 ct Natural Color Play Black Opal Diamonds Pendant Necklace
Located in Kaohsiung City, TW
"IGI 14K 15.58 ct Natural Color Play Black Opal Diamonds Pendant Necklace" This necklace features a IGI-certified 15.58-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
$3,040Sale Price|20% Off
HRD 14K 5.01 ct Natural Color Play Black Opal Diamonds Cocktail Ring
Located in Kaohsiung City, TW
"HRD 14K 5.01 ct Natural Color Play Black Opal Diamonds Cocktail Ring" This ring features a 5.01-carat natural black Opal with a color-play effect.
Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
$6,950Sale Price|40% Off
Lagre Blue Black Opal Silver Ring 10 carat gift natural opal wedding mens ring
Located in Berlin, DE
Statement silver ring with natural Black Opal with deep blue opalescence size of the ring - 8 1/4 US, diameter 18.25 mm, N 18, 58 circumference ring weight - 12 grams stone measureme...
Opal, Black Opal, Silver
Certified 4.83 Carat Black Opal and Diamond Platinum Ring by Meghna Jewels
By Meghna Jewels
Located in Hoffman Estate, IL
Centered on a captivating 4.83 carat certified natural black opal, this striking ring displays a vivid play-of-color, with flashes of green, blue, and vibrant red shifting across the...
Diamond, Opal, Black Opal, Platinum
2.78 Carat Black Opal and Diamond Halo Platinum Filigree Ring
Located in Miami, FL
2.78 carat natural black opal and round cut diamond halo ring.
Diamond, Opal, Black Opal, Platinum
GIA Cert. 5.10 Carat Untreated Black Opal Diamond Halo Platinum Starburst Ring
Located in Miami, FL
GIA-certified 5.10 carat natural black opal with no color treatment, displaying vivid full-spectrum play-of-color, set in a four-prong platinum 900 mounting within a starburst single...
Agate, Diamond, Platinum
Australian Solid Black Opal Domed Signet Ring 9ct Rose Gold Size S / 9.25
Located in SYDNEY, AU
Item Details: - Stones : 1 x solid Australian natural black opal (9mm x 6.8mm approx.), gem weight 0.8 carat estimated
Black Opal, Opal, 9k Gold, Rose Gold, Gold
Opals were discovered in 400 BC, and since then five types have been found throughout the world. Before you start shopping for mysteriously beautiful vintage opal rings and other opal jewelry, learn about the different varieties of the gem — and find out which historical figure was reportedly willing to trade his kingdom for a single stone.
Here is a little riddle for you: the month of October has two birthstones, but only one of them encompasses the colors of other birthstones. If you guessed opal, you’re right! (The other gemstone associated with the month of October is tourmaline.)
Opals are such unusual gemstones that there are too many old-wives tales associated with them, like if you’re a blond, wearing an opal necklace will protect your locks from losing color. Opals were also very fashionable in the early 19th century, up until the publication of Sir Walter Scott’s novel Anne of Geierstein in 1829. The title heroine wears an opal and succumbs to an untimely death. However, the British monarchy, and in particular Queen Victoria, did not let this story get in their way, and they frequently gifted opals to friends and family members. October babies should disregard the noise and proudly wear their opals!
There are five types of precious opals: boulder opal, fire opal, crystal/water opal, black opal, and white/light opal. Each variety is distinguished by its color.
So, where does the name come from? The word opal is thought to originate from the Roman opalus or from the Sanskrit úpala (“precious stone”) or from the Greek opallios (“to see a color change”). So while there have been many names for the stones, opals were first discovered in 400 BC in Ethiopia. But the early reference that comes up most often in history books is from the Roman philosopher Pliny the Elder, who wrote about it in 75 AD. In his text he refers to it as opali. The Romans were big fans of opal, Mark Antony was so enamored by it that, as the story goes, he was willing to trade a portion of his kingdom for a single opal.
There's a wide variety of antique and vintage opal jewelry on 1stDibs (and you won't have to trade your kingdom for it).