Natural Australian Boulder Opal and Diamond Pendant Top Made in 18K Gold & PLAT
Located in Tokyo, JP
A beautiful pendant top featuring a Australian Boulder Opal and Diamonds made in 18 Karat Gold and Platinum.
Diamond, Opal, Platinum, 18k Gold
$4,012Sale Price|25% Off
Bochic Capri Convertible Necklace, 18K Gold & Silver, 74ct Gemstones
By Bochic
Located in New York, NY
Accents of Aquamarine (7 carats) evoke the crystalline waters of Capri, while delicate touches of Pink Sapphire (2 carats) and a captivating Australian Opal (5 carats) introduce a so...
Aquamarine, Opal, Quartz, Sapphire, Pink Sapphire, 18k Gold, Silver
Bochic Capri Convertible Necklace, 18K Gold & Silver, 74ct Gemstones
By Bochic
Located in New York, NY
Accents of Aquamarine (7 carats) evoke the crystalline waters of Capri, while delicate touches of Pink Sapphire (2 carats) and a captivating Australian Opal (5 carats) introduce a so...
Aquamarine, Opal, Quartz, Sapphire, Pink Sapphire, 18k Gold, Silver
Australian Boulder Opal Stone 5.24 cts w Diamonds & Emerald Stones 0.61 cts /GIA
Located in Los Angeles, CA
Australian Boulder Opal Ring
Diamond, Emerald, Opal, 18k Gold, White Gold
You Are in My Heart - Australian Doublet Opal Pink Sapphire Pendant 14K Rose
Located in Suwanee, GA
Australian Doublet Opal Pink Sapphire Pendant Necklace 14K Rose Gold.
Opal, Pink Sapphire, Rose Gold, Gold, 14k Gold
72.25 Carat Australian Boulder Opal Platinum & 18k Y Gold Ship-at-Sea Brooch
Located in Beverly Hills, CA
Picture a majestic brooch, a symphony of iridescence and elegance, crowned by a mesmerizing 72.25 carat boulder opal at its heart! This opal, like a miniature landscape of a ship at ...
Diamond, Opal, 18k Gold, Yellow Gold, Platinum
Kitty Cat with a Bow Australian Solid Opal Stud Earrings 14k Yellow Gold
Located in Suwanee, GA
Kitty Cat with a Bow Australian Solid Opal Stud Earrings 14k Yellow Gold.
Opal, Yellow Gold, Gold, 14k Gold
Heart-Shape Solid Australian Crystal Opal Bezel Set Necklace 14K Rose Gold R4139
By Aurora Designer
Located in Osprey, FL
♥ Heart-shape Solid Australian Crystal Opal Bezel Set Necklace 14K Rose Gold Pendant ♥ Solid 14k rose gold pendant set with a beautiful -shaped ♥ Gorgeous color!
Crystal, Opal, 9k Gold, Rose Gold
BUNDA 'Hollywood' Opal Pendant, 2.41ct Opal, 0.09ct Diamonds, 18k gold
By Ben Bunda
Located in SYDNEY, AU
A BUNDA 'Hollywood' pendant in 18ct yellow and white gold, featuring a Boulder Opal, bezel set and fitted below a circle of threadset round brilliant cut diamonds. Weight of Boulde...
Diamond, Opal, 18k Gold
14 Karat Black Rhodium and Rose Gold Australian Black Opal and Emerald Ring
By Nazarelle
Located in Houston, TX
This ring is made with 14 karat rose gold and 14 karat white gold that has a black rhodium finish and features a 4.30ct Australian black opal with a mixture of colors like blue, gree...
Opal, Emerald, 14k Gold, Gold, Rose Gold, Rhodium
Australian Lightning Ridge Oval Blue Opal and Diamond 18 Karat White Gold Ring
Located in Houston, TX
This exquisite ring features a mesmerizing 0.57ct oval blue opal paired with sparkling round diamonds totaling 0.43ctw, all elegantly set in luxurious 18 karat white gold. Perfect fo...
Diamond, Opal, Gold, 18k Gold, White Gold
BUNDA 24.21ct Boulder Opal in silver
By Ben Bunda
Located in SYDNEY, AU
A BUNDA 'Couture' Boulder Opal pendant in sterling silver, featuring an Australian boulder opal, predominately blue, red and brown in colour.
Opal, Silver
$4,800Sale Price|20% Off
Australian Boulder Opal Diamond Yellow Gold One-of-a-Kind Ring, Just Jules 2025
By Julie Romanenko
Located in Dallas, TX
This stunning ring by designer Just Jules showcases a magnificent pear-shaped Australian boulder opal ablaze with vibrant flashes of electric blue, green, and violet - reminiscent of...
Diamond, Multi-gemstone, Opal, Gold, 14k Gold, Yellow Gold
$6,090Sale Price|20% Off
Platinum Rutilated Quartz White Diamond Yellow + White Gold Ring, Pamela Froman
By Pamela Froman
Located in Dallas, TX
From her current studio in Los Angeles, Pamela continues to evolve her line while keeping true to the handmade, exceptional quality that has defined her image. Semi Black Australian ...
Diamond, White Diamond, Multi-gemstone, Quartz, Other, Gold, 18k Gold, Y...
Round 10k Gold Pin With Australian Fire Opal Accent circa Mid-Century
Located in Scottsdale, AZ
Round 10k Gold Pin with Australian Fire Opal Accent from the Mid-Century era is a stunning example of vintage jewelry craftsmanship.
Blue Boulder Opal ring Avatar Unisex natural opal ring Genuine opal jewelry
Located in Berlin, DE
Amazing silver ring with natural blue and green Boulder Opal Opal origin - Queensland, Australia weight of the opal - 7.10 carat weight of the ring - 12.47 grams opal - 0.24 х 0.47 x...
Opal, Silver
BUNDA Opal and Diamond Pendant in 18k white gold
By Ben Bunda
Located in SYDNEY, AU
A BUNDA 'Caelum' Opal pendant made in 18 carat white gold. The boulder opal featuring with blue and green colours enhanced with thread-set diamonds. Stamped BUNDA. Serial number 2401...
Diamond, Opal, White Gold
Bochic Capri Vintage 18K Gold & Silver Necklace, 74ct Multi Gemstones
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Lemon Quartz, Aquamarine, Opal & Sapphire Necklace Set 18K & Silver Natural Lemon Quartz - 45 Carats Natural Blue Sapphire - 15 Carats Natural Aqu...
Aquamarine, Opal, Quartz, Sapphire, Blue Sapphire, Pink Sapphire, Multi-...
Natural 23.20 Ct large teardrop boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 23.20 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021.
Opal
Loose Boulder Opal - Solitaire
Located in Greensboro, NC
Stone Information Natural Boulder Opal Origin: Australia Measurements Condition: Pre-Owned
Opal
Lightning Ridge Opal and Diamond Pendant Necklace
Located in Coral Gables, FL
Stunning 18 Karat White Gold Pendant Necklace Featuring A 3.54 Carat Oval Lightning Ridge Opal with Gorgeous Green and Blue Play of Color. 0.27 Carat Total Weight Round Brilliant Cut...
Diamond, Opal, 18k Gold, White Gold
Boulder Opal Sculpture from Queensland, Natural Ironstone Matrix, New
Located in New York, NY
Interesting Facts: Boulder opals are uniquely formed in Queensland, Australia, where opal veins naturally grow within ironstone.
Opal
Natural 13.54 Ct carved Boulder Opal butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 13.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024.
Opal
$1,280Sale Price|20% Off
Natural 20.08 Ct Carved Boulder Opal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.08 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024.
Opal
BUNDA 26.26ct Boulder Opal and 0.09ct Diamonds Pendant in 18k gold
By Ben Bunda
Located in SYDNEY, AU
A BUNDA Square 'Hollywood' Australian Boulder Opal pendant, handcrafted in 18ct white gold and 18ct yellow gold, on an 18ct white gold trace chain.
Diamond, Opal, 18k Gold
12.03ct Oval Lightning Ridge Black Opal and 16.19ct Diamond Spider Web Necklace
Located in Houston, TX
This glorious, unique piece is a spider web necklace, featuring an exquisite 12.03ct oval cut Lightning Ridge black opal, surrounded by 16.19ct total weight in fine round diamonds fo...
Diamond, Opal, Black Opal, Platinum
7ct Boulder Opal and .5ct Diamonds Necklace 18k Gold
By Nancy Phillips
Located in Eugene, OR
Seascapes. This 7ct Australian Boulder Opal necklace is a one-of-a-kind masterpiece, blending organic beauty with fine jewelry craftsmanship.
Diamond, Opal, 18k Gold, Yellow Gold
20.00ct (approx) Solid Triangle White Opal Pendant in 9K Yellow Gold (no chain).
Located in MELBOURNE, AU
These magnificent Pendant features Australian White Solid Opal of impressive & rarely encountered size: 20.00ct approx. (40mm x 23mm in its widest part), of very unusual triangle s...
Opal, Yellow Gold
Natural 5.59 Ct Carved Fossilised Opal carved Flower mined by Sue Cooper
Located in BELCONNEN, ACT
Mined at Sue’s Russells opal mine in western Queensland, Australia, in 2021, this opal gem is a remarkable find.
Crystal, Opal
$4,081
Crystal Opal Silver Ring
Located in Berlin, DE
This refined ring showcases a natural Australian crystal opal, selected for its transparency and vivid play of color.
Crystal, Opal, Silver
$4,800Sale Price / item|20% Off
Rainbow Opal Ring in 18ct gold
Located in Brisbane, AU
Rainbow Opal ring featuring a solid black opal in the centre surrounded by a rainbow of sapphires, mandarin garnets, amethyst and tsavorites. f/si high quality diamonds set down t...
Amethyst, Opal, Peridot, Blue Sapphire, Pink Sapphire, Yellow Sapphire, ...
Boulder Opal Diamond Ring. 18k Gold Genuine Opal Diamond Set Ring.
Located in Port Charlotte, FL
Stunning Australian Boulder Opal Cabochon Bezel set. Accented with Diamonds.
Diamond, Opal, Platinum
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
Opal Gold Necklace Harlequin pattern Opal wedding anniversary gift ideas
Located in Berlin, DE
18K yellow gold necklace with natural fine quality Harlequin pattern Opal opal origin - Australia pendant weight - 4.8 grams pendant height - 1.29 in / 36 mm gemstone size - 0.59 x 0...
Opal, Gold, 18k Gold, Yellow Gold
Big Boulder Koroit Opal Silver Necklace Natural Opal Gold Plated Pendant
Located in Berlin, DE
Large 18K gold plated silver pendant with natural fine quality Boulder Koroit Opal gemstone origin - Australia gem size is 20 x 32 mm stone weight - 58 carats pendant length - 48 mm ...
Opal, Gold Plate, Silver
Ink Opal Silver Pendant Blue Genuine Opal Fine Jewelry gift lotr style
Located in Berlin, DE
Silver pendant with natural Black Opal gemstone origin - Australia gem size is 0.12 x 0.43 x 1.26 in / 3 x 11 x 32 mm stone weight - 9.9 carats pendant lenght - 1.61 in / 41 mm pend...
Opal, Silver
Boulder Opal Sapphire Pendant. 18k White Gold Opal Diamond Sapphire Necklace.
Located in Port Charlotte, FL
Details: 17mm by 31mm Pendant -- 3ct Genuine Australian Boulder Opal Natural Diamonds and Sapphires 18in 18k Box Chain Necklace.
Diamond, Opal, 18k Gold, White Gold
Vintage Oval Doublet Opal (15mm x 10mm) & Seed Pearl 9K Yellow Gold Pendant
Located in MELBOURNE, AU
Of Australian provenance, the pendant is crafted in 9K yellow gold, in lovely filigree motif, measuring 28mm (including bail) x 17mm bezel set with Australian doublet opal of oval ...
Opal, Pearl, Yellow Gold
Boulder Opal Silver Gold ring, unique engagement opal anniversary size 8
Located in Berlin, DE
This elegant Boulder Opal ring is crafted in solid 925 sterling silver and 18K gold features a fine-quality natural opal sourced from Queensland, Australia, renowned for producing st...
Opal, 18k Gold, Gold Plate, Silver, Gold
Blue Boulder Opal Silver Ring large 8.75 size gift opal anniversary wedding
Located in Berlin, DE
An unisex ring showcasing a natural Australian boulder opal of impressive scale, measuring 0.55 × 0.75 in (14 × 19 mm).
Opal, Silver
Black Opal Diamond Ring. PT900 Platinum Opal Diamond Halo Ballerina Ring Band.
Located in Port Charlotte, FL
Stunning Australian Black Opal Oval Cabochon Halo design ring with Diamond accents.
Diamond, Opal, Platinum
Black Opal Diamond Ring. PT850 Platinum Opal Diamond Halo Ballerina Ring Band.
Located in Port Charlotte, FL
Stunning Australian Black Opal Oval Cabochon Halo design ring with Diamond accents.
Diamond, Opal, Platinum
$12,506Sale Price|44% Off
Black Opal 18K Yellow Gold Ring
Located in Berlin, DE
Black Opal 18K gold ring, can be a perfect engagement ring weight of the ring - 7.4 gr size of the opal gemstone - 11 x 13 mm opal weight - 4 ct size of the ring - 56 / 7.5 US / diam...
Opal, Black Opal, 18k Gold, Yellow Gold
Red Boulder Opal silver ring Fine Opal Anniversary Gift wedding Ring 4.21 carat
Located in Berlin, DE
Statement silver ring with very bright, unique natural Boulder Opal of 4.21 carats with the rarest color of opalescence - red Opal origin - Australia color of opalescence - red, blue...
Opal, Silver
14K White Gold Solid Ethiopian Jelly Opal Diamond Pendant Necklace, Pear Cut
Located in SYDNEY, AU
A stunning 14ct white gold pendant necklace with a 2.8 carat natural untreated pear cut Ethiopian crystal opal, bezel set with a halo surround of 28 brilliant cut natural diamonds, a...
Diamond, Opal, 14k Gold, White Gold
Cultured Pearl Princess Length 45cm Necklace with 9K Gold, Opal & Pearl Clasp
Located in MELBOURNE, AU
This Magnificent Cultured Pearl Strand is of desirable princess length – 45cm (17.7 inches), comprising 43 well-matched Cultured Pearls, ranging in size from 8mm to 10mm (approx.) ...
Opal, Cultured Pearl, 9k Gold
18 Karat Opal Diamonds and Enamel Vintage Ring Filigree Design Blue Enamel
Located in Brooklyn, NY
18k Yellow Gold 16.5 grams Oval Opal from Australia size 13 x 9 Diamonds approx 0.75 carat nice white G-H-SI Blue Enamel as you can see in the filigree design.
Diamond, Opal, 18k Gold, Enamel
BUNDA 1.78ct Fire Opal and 0.93ct Diamonds ring in 18k white gold
By Ben Bunda
Located in SYDNEY, AU
A BUNDA 'Pavo' ring in 18ct white gold, featuring a bezel set, rich orange, Volcanic opal, and pave set, round brilliant cut diamonds. Characteristics of Volcanic Opal: 1 = 1.78ct. ...
Diamond, Fire Opal, White Gold
AGL 10.35 Cts Black Crystal Opal, 7.62 Cts Tsavorite & Diamond Platinum Earrings
By Kiersten Elizabeth
Located in Southport, CT
Notice the profile design with alternating round Tsavorite Garnets and Marquis Diamonds. The Australian Black Crystal Opals are accompanied with reports from the most reputable co...
Diamond, Opal, Tsavorite, Platinum
Boulder Opal silver pendant gift 25005
Located in Berlin, DE
Silver pendant with natural Boulder Opal gemstone origin - Australia gem size is 10 x 16 mm Opal weight - 5.20 ct pendant length - 25 mm pendant weight - 2.17 gr ref No 25005 All pic...
Opal, Silver
$44,000Sale Price|60% Off
NWT $110, 000 18KT Black Opal Fancy Black Opal Sapphire Emerald Pearl Necklace
Located in New York, NY
The Following Item we are offering is this Beautiful Rare Important and Fine 18KT White Gold South Sea Pearl and Australian Black Opal Diamond Necklace. Magnificent adorned with Glit...
Diamond, Emerald, Multi-gemstone, Opal, Sapphire, Blue Sapphire, Black O...
Black Opal Diamond Ring. 18k Yelow Gold Opal Diamond Halo Ballerina Ring Band.
Located in Port Charlotte, FL
Stunning Australian Black Opal Oval Cabochon Halo design ring with Diamond accents.
Diamond, Opal, 18k Gold, Yellow Gold
Boulder Opal 18K Gold Silver Ring Natural Blue opal gemstone gift for wife
Located in Berlin, DE
Matte finish silver 18K gold plated ring with fine quality blue Boulder Opal gemstone origin - Australia ring weight - 4.61 grams ring size - 8 1/2 US gemstone size - 0.12 х 0.16 x ...
Opal, Gold Plate, Silver, 18k Gold
Unusual Patterned Dark Australien Opal SIlver Ring 3.6ct
Located in Berlin, DE
Silver ring with natural unusual patterned Dark Opal Opal origin - Australia weight of the Opal - 3.6 carat gemstone measurements 10 х 17 mm ring weight - 10.8 grams ring size - 8 1/...
Opal, Black Opal, Silver
Forget Me Knot Bow Brooch Pendant with Fire Opal and Yellow Diamonds
Located in Brisbane, AU
Making a bold yet refined statement, the Forget Me Knot Brooch with Fire Opal and Yellow Diamonds is crafted as a one-of-a-kind jewel, centred around a luminous fire opal embraced by...
Yellow Diamond, Opal, Fire Opal, 18k Gold, White Gold, Yellow Gold
14K Yellow Gold Vintage Opal Ring 3.5g
Located in Laguna Beach, CA
Stamped 14k, Plat, and weighs 3.5 grams gross weight. The Australian black opal has excellent, bright green and blue colors.
Opal, 14k Gold, Yellow 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 as it is beautiful.
Diamond, Opal, Black Opal
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).