$31,470Sale Price|40% Off
Boulder Koroit Opal Gemstone, 81.60ct Artisan Freeform, Australia
Located in Berlin, DE
This exceptional boulder Koroit Opal is a true masterpiece of nature, showcasing a captivating array of colors and patterns.
Opal
Boulder Opal Silver Pendant Koroit Opal Gold Plated Necklace
Located in Berlin, DE
Silver necklace with natural Boulder Koroit Opal (18K gold plated) gemstone origin - Australia gem size is 18 x 23 mm stone weight - 13 ct pendant length - 32 mm pendant weight - 4.8...
Opal, Gold Plate, Silver
$1,740Sale Price|40% Off
Big Boulder Koroit Opal Silver Pendant Australian Opal Gold Plated Necklace
Located in Berlin, DE
18K gold plated silver necklace with natural Boulder Koroit Opal gemstone origin - Australia gem size is 21 x 33 mm stone weight - 30.45 ct pendant length - 42 mm pendant weight - 10...
Opal, Gold Plate, Silver
Boulder Koroit Opal Silver Necklace mens jewelry pendant male friend gift
Located in Berlin, DE
Silver pendant with natural Boulder Koroit Opal gemstone origin - Australia gem size is 10 x 22 mm pendant length - 1.26 in / 32 mm pendant weight - 3.5 grams The necklace comes wit...
Opal, Silver
Boulder Koroit Opal Silver Pendant Gold Plated Necklace opal wedding gift
Located in Berlin, DE
925 sterling silver pendant with natural Boulder Koroit Opal and 18K gold plating gemstone origin - Australia gem size is 0.63 x 1.57 in / 16 x 40 mm stone weight - 26 carats pendant...
Opal, Gold Plate, Silver
$1,399Sale Price|40% Off
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
$4,595Sale Price|40% Off
Large Boulder Koroit Opal Silver Ring 9ct opal anniversary gift
Located in Berlin, DE
This exceptional Boulder Koroit Opal ring is a sculptural statement piece that captures the dramatic geological artistry for which the region is renowned.
Opal, 18k Gold, Gold Plate, Silver
$3,829Sale Price|40% Off
Big Blue Boulder Opal Silver Ring Unisex Statement Natural Koroit Opal Jewelry
Located in Berlin, DE
Large beautiful nature Boulder - Koroit-type - Opal ring in sterling silver ring size - 9 US weight of the Opal 24 ct gemstone origin - Australia stone measurements - 18 х 20 mm ring...
Opal, Silver
Steven Battelle 27.3 Carats Koroit Boulder Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
Koroit opal comes from an opal mining area in Paroo Shire in South West Queensland, Australia.
Opal, 18k Gold
$1,258Sale Price|40% Off
Australian Boulder Opal Silver Pendant Brown Raw Red Flash Opalescence Gemstone
Located in Berlin, DE
Silver pendant with natural Boulder Koroit Opal gemstone origin - Australia opal measurements - 0,12 x 0,71 x 1,34 in / 3 x 18 x 34 mm pendant length - 1.77 in / 45 mm pendant weig...
Opal, Silver
$1,288Sale Price|40% Off
Large Boulder Opal Ring silver Natural Australian Woody Musk Dark Brown Gemstone
Located in Berlin, DE
Natural Koroit Opal silver ring with matte finish opal origin - Australia opal weight - 16.5 carats ring weight - 10.94 grams size of the ring - 8 1/2 US / 58 EU stone measurement...
Opal, Silver
$1,357Sale Price|40% Off
Opal Silver Pendant Mens jewelry Natural Australian opal gift
Located in Berlin, DE
925 solid sterling silver pendant with natural Boulder Koroit Opal opal origin - Australia opal measurements - 0.2 х 0.79 х 0.98 in / 5 х 20 х 25 mm opal weight - 25 carats pendant ...
Opal, Silver
$870Sale Price|40% Off
Opal necklace silver Blue Boulder Natural Australian Gemstone
Located in Berlin, DE
Matte finish silver pendant with natural Boulder "Koroit" Opal gemstone origin - Australia gemstone size - 0.32 x 0.67 х 1.18 in / 8 х 17 х 30 mm gemstone weight - 36.5 carat penda...
Opal, Silver
Boulder Opal Gold Pendant Polychrome Natural Australian Gem
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Koroit opal on a 100% silk cord opal origin - Australia opal weight - 41.28 carats opal measurements - 1.02 х 1.42 in / 26 х 36 mm penda...
Opal, Gold, 14k Gold, Yellow Gold
$3,829Sale Price|40% Off
Opal Gold Necklace Oval Artisan Gift Antique Style
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Koroit Opal opal origin - Australia opal measurements - 0.16 x 0.71 x 1.54 in / 4 x 18 x 39 mm stone weight - 29.90 carats pendant lengt...
Opal, Gold, 14k Gold
$4,874Sale Price|40% Off
Opal Gold Ring Blueprint Woody Musk Tree Natural Australian Gem
Located in Berlin, DE
14K yellow gold ring with Boulder Koroit Opal opal origin - Australia opal measurements - 0.24 х 0.98 х 1.18 in / 6 х 25 х 30 mm stone weight - 44.43 carats ring weight - 16.9 grams...
Opal, Gold, 14k Gold, Yellow Gold
Boulder Opal Gold Pendant Russet Brown Australian Gemstone vintage style gift
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Koroit Opal opal origin - Queensland, Australia opal measurements - 0.12 x 0.63 x 1.22 in / 3 x 16 x 31 mm stone weight - 14.8 carats ...
Opal, Gold, 14k Gold, Yellow Gold
$3,133Sale Price|40% Off
Opal Black Silver Earrings Dangle Large Gemstone LOTR Gothic style wedding
By Alexey Gabilo
Located in Berlin, DE
Boulder Koroit Opal earrings in blackened and gold plated silver opal origin - Australia opal measurements - 0.55 х 0.91 in / 14 х 23 mm opal weight - 23.10 carats earrings length - ...
Opal, Gold Plate, Silver, Sterling Silver
Steven Battelle 23.3 Carats Koroit Boulder Opal Oxidized Sterling 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
This ring is currently sized 8, and is somewhat difficult to resize. Koroit boulder opal is only found in one region of Queensland, Australia.
Opal, 18k Gold
$4,177Sale Price|40% Off
Large Boulder Opal Ring silver Natural Opal gift friend anniversary opal wedding
Located in Berlin, DE
One of a kind statement silver ring with natural Koroit Boulder Opal of 13.5 carats Opal origin - Australia Opal measurements - 12 x 16 mm / 0.47 x 0.62 in US Size 8.5 = UK Size K 1/...
Opal, Silver
Contemporary Australian Koroit Opal and Tsavorite Garnet Earrings
By Katherine Jetter
Located in Albuquerque, NM
Romantic and elegant hand-carved 13.70ct Australian Koroit Opal drop earrings with 1.35ct Tsavorite Garnet Trillion studs.
Opal, Tsavorite, 18k Gold
Australian Koroit Black Boulder Opal Sterling Silver Pendant by Ken Fury
By Ken Fury
Located in Queens, NY
Koroit black boulder opal is considered to be one of the rarest and most valuable types of boulder opal, known for its dark body tone and intricate matrix.
Opal, Sterling Silver
Boulder Koroit Opal Silver pendant gold plated necklace gift Christmas
Located in Berlin, DE
Pendant with natural Boulder Koroit Opal in 18K gold plated silver gemstone origin - Australia gem size is 18 x 28 mm stone weight - 15 carats pendant length - 39 mm pendant weight -...
Opal, Gold Plate, Silver
Sold
W 0.43 in L 1.81 in
Katherine Jetter Convertible Drop Earrings 18Kt Gold 36.32 Cts Opal & Mandarine
By Katherine Jetter
Located in Miami, FL
The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines.
Opal, Mandarin Garnet, Gold, 18k Gold, Yellow Gold
Large Koroit Boulder Opal Lighting Necklace on a Cord
Located in Berlin, DE
Natural Koroit Bouder Opal pendant on a black cord gem size is 10 х 28 х 38 mm cord length - 49 cm pendant weight - 23 grams Prices include all taxes, valid in Germany and in Euro...
Opal, Silver
Multi-Gemstone, Vintage Pendant and Ancient Coin Bohemian Necklace
By Vicki Orr
Located in Naples, FL
Necklace is made of 17 beautiful pieces including (counter clockwise) : Nephrite, Onyx, Gold American Eagle Coin, Damele Turquoise, Tahitian Pearl, Jasper, Citrine, Ancient Roman Bro...
Carnelian, Citrine, Diamond, White Diamond, Garnet, Jade, Multi-gemstone...
Australian Koroit Opal Earrings in18K Solid Yellow Gold
By Renate Exclusive
Located in Naples, NY
Oh...these are gorgeous! Koroit opals are found in a unique geological area in South West Queensland, Australia.
Opal, 18k Gold, Yellow Gold
Boulder Koroit Opal Gold Pendant Australian Gemstone
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.12 x 0.55 x 0.71 in / 3 x 14 x 18 mm stone weight - 5.6 carats pendant length - 0.87 ...
Opal, Gold, 14k Gold, Yellow Gold
Australian Opal Gold Ring Map of Middle-Earth Unisex Aragorn St Valentine's Gift
By Alexey Gabilo
Located in Berlin, DE
14k yellow gold ring with natural Boulder Koroit Opal - Map of Middle-Earth opal origin - Australia opal measurements - 0.16 х 0.79 х 0.98 in / 4 х 20 х 25 mm stone weight - 16.4...
Opal, 14k Gold, Yellow Gold
Sold
H 1.14 in W 0.5 in
Australian 8.88ct Boulder Opal Pendant Necklace in 18K Yellow Gold with Diamonds
By Renata Bernard
Located in Sydney, AU
“Let’s Sing” opal pendant is a showstopper. The 8.88 carat boulder opal from Koroit in Queensland dazzles with a kaleidoscope of colours – it’s the bold reds set this gem apart.
Diamond, Opal, 18k Gold, Yellow Gold
Sold
H 1.07 in W 0.71 in D 0.2 in
Emerald River Australian Opal Necklace with Emerald & Rose Gold by NIXIN Jewelry
Located in Los Angeles, CA
Mounted in a rose gold bezel setting, this unique necklace is framed like a snapshot of nature taken from a bird's-eye view. Hailing from Koroit, this remarkable Boulder Opal rests ...
Emerald, Opal, Gold, 14k Gold, Rose Gold
$104,901Sale Price|40% Off
W 0.87 in D 0.2 in L 1.97 in
Big Opal Boulder Australian Fine gemstone Freeform 47 ct Neon Blue SSEF cert
Located in Berlin, DE
Boulder Opal from Queensland, Australia is one of the rarest gemstones on earth. Spectacular in size, color, shape and exhibiting a full rainbow of colors, this 47.50-carat free shap...
Opal
$2,727Sale Price|40% Off
H 1.61 in W 0.51 in D 0.2 in L 1.06 in
Boulder Opal Silver Pendant Nacreous White Multicolor Natural Australian Stone
Located in Berlin, DE
Silver pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.2 х 0.51 х 1.06 in / 5 х 13 х 27 mm opal weight - 19.45 carats pendant weight - 6.54 grams pen...
Opal, Silver, Sterling Silver
Australian Boulder Opal Diamond Necklace 14K Yellow Gold
By The Wind Opal
Located in Suwanee, GA
Australian Boulder Opal Diamond Pendant Necklace 14K Yellow Gold. Free Domestic USPS First Class Shipping! Free One Year Limited Warranty! Free Gift Bag or Box with every order! Op...
Diamond, Opal, Yellow Gold, Gold, 14k Gold
$2,148
H 0.22 in W 0.67 in L 1.66 in
5.85ct Australian Boulder Opal and Diamond Pendant 18K Gold V1126
Located in Osprey, FL
This stunning 5.85ct Australian Boulder Opal and Diamond Pendant will captivate you with its rainbow play of color and vibrant, bright colors. Set in lustrous 18K Gold, this pendant ...
Diamond, Opal, 18k Gold, Yellow Gold
$3,953
W 0.38 in D 0.13 in L 0.51 in
Natural 3.53 Australian pink and green boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 3.53 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut int...
Opal
Steven Battelle 2.7 Carats Australian Boulder Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
A fiery, green flashing irregular cut 6 x 16 mm Australian boulder opal from the opal fields near Quilpie, Queensland is set into an artisan crafted matte-finish 18K gold bezel surro...
Opal, 18k Gold
$6,266Sale Price|40% Off
H 1.54 in
Fountain of life Large Boulder Opal Silver necklace fine quality australian gem
Located in Berlin, DE
Large silver pendant with natural fine quality Boulder Opal gemstone origin - Australia gem size is 0.87 x 1.10 in / 22 x 28 mm stone weight - 32 carats pendant length - 1.54 in / 39...
Opal, Silver
Australian Boulder Opal Pendant in 18K Yellow Gold gift
Located in Berlin, DE
This refined pendant is crafted in solid 18K yellow gold and showcases a vivid Australian Boulder Opal distinguished by its natural play of color. Within the compact yet expressive s...
Opal, Yellow Gold
10 Carat Australian Boulder Opal Freeform Cabochon
Located in New York, NY
This incandescent 10 ct. Boulder Opal freeform cabochon features a captivating play of color across its polished surface with electrifying flashes of green, violet, aqua, and gold sh...
Opal
$6,266Sale Price|40% Off
H 1.73 in W 0.71 in D 0.24 in L 1.38 in
Opal Gold Pendant Boulder Australian Nature Inspired Necklace
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.24 х 0.71 х 1.38 in / 6 х 18 х 35 mm stone weight - 13.65 carats pendant length - 1.73...
Opal, Gold, 14k Gold, Yellow Gold
$3,500
H 1.61 in W 2.95 in D 0.59 in
Boulder Opal Sculpture from Queensland, Natural Ironstone Matrix, New
Located in New York, NY
This magnificent Boulder Opal from Australia is a true masterpiece of nature, showcasing a breathtaking play of colors with deep blues, vibrant greens, and fiery oranges against a ri...
Opal
$2,901
H 1.42 in W 0.51 in D 0.2 in L 1.02 in
Boulder Opal 18K Gold Silver Pendant Natural Multi-Colour Australian Gemstone
Located in Berlin, DE
18K yellow gold plated and matte finish silver pendant with natural Boulder Opal opal origin - Australia pendant weight - 5.75 grams pendant height - 1.42 in / 36 mm gem size - 0.2 ...
Opal, 18k Gold, Silver, Gold Plate
$2,088Sale Price|40% Off
H 1.54 in
Unusual Boulder Opal Silver 18k Gold necklace anniversary gift for men birthday
Located in Berlin, DE
Silver necklace with natural unusual Boulder Opal in a shield shape (18K gold plated) gemstone origin - Australia gem size is 0.47 x 1.10 in / 12 x 28 mm stone weight - 20.20 ct pend...
Opal, 18k Gold, Gold Plate, Silver
116-Carat Boulder Opal Sculpture from Queensland, Australia
Located in New York, NY
This exceptional 116-carat Boulder Opal from Queensland, Australia, displays a mesmerizing play of color with vivid flashes of electric blue, green, and fiery orange coursing through...
Opal
Giant Australian Boulder Opal & Diamond Pendant Necklace
Located in GOES, NL
Discover a treasure born from the heart of Australia. This exceptionally rare 19 inch boulder opal necklace features a mesmerizing gemstone sourced from the legendary Winton Opal Fi...
Diamond, Opal, 14k Gold, Yellow Gold
Australian 15ct Large Boulder Opal Pendant Gold Over 999 Silver
Located in SYDNEY, AU
An astonishing Australian boulder opal pendant with incredible river / beach like colour patterns, set in an organic design frame made in solid 999-silver with high quality gold plat...
Opal, Gold Plate, Silver
John Galliano for Christian Dior Silk Lace up Top and Skirt
By Christian Dior, John Galliano
Located in Water Mill, NY
An incredible 2 piece silk skirt and top set in a pink and yellow flower print from John Galliano for Christian Dior. The top has adjustable functional pink lacing at the center fron...
Opal Australian Opal Bronze Earrings
By Giulia Colussi
Located in Milan, IT
Opal Australian Opal Bronze Earrings, length cm 7. All Giulia Colussi jewelry is new and has never been previously owned or worn. Each item will arrive at your door beautifully gift...
Opal, Bronze
$535Sale Price|50% Off
Bally Astara Crocodile Embossed Leather Pencil Miniskirt
By Bally
Located in PUTNEY, NSW
This Bally Astara pencil miniskirt is crafted from crocodile-embossed leather with a sleek, form-fitting silhouette. A concealed back zip closure completes the design. Banded waist B...
Steven Battelle 12.6 Carats Rainbow Moonstone 22K Gold Ring
By Steven Battelle
Located in Soquel, CA
A luminous and flashing 12 mm high-dome cushion shaped cabochon rainbow moonstone rests in a vertical "4-point with jawan" Steven Battelle designed setting atop a tapered matte-finis...
Moonstone, Rainbow Moonstone, 22k Gold
0.99ct Oval Opal & Diamonds Pendant Set in 18ct Yellow Gold
Located in London, GB
This beautiful pendant opal and diamonds is set with a 0.99ct oval-shaped opal gemstone. The pendant is suspended from a 18 inches adjustable at 16 inches 18ct yellow gold chain. To...
Diamond, Opal, 18k Gold, Yellow Gold
A Victorian gold and turquoise serpent necklace
Located in London, GB
A Victorian gold and turquoise serpent necklace, the flexible tapering yellow gold body formed of three rows of scale-like collets each set with a round cabochon-cut turquoise, the h...
Turquoise, Gold
$4,943Sale Price|40% Off
H 1.85 in W 0.55 in D 0.16 in L 1.34 in
Opal Yellow Gold Pendant Multicolor Australian Stone
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold necklace with natural boulder Opal opal origin - Australia opal measurements - 0.16 х 0.55 х 1.34 in / 4 х 14 х 34 mm opal weight - 32 carats pendant weight - 10.79 ...
Opal, Gold, 14k Gold, Yellow Gold
Schiaparelli PIERCED EAR CUFF BRACELET hammered gold with a rhinestone piercing
By Schiaparelli
Located in KRAKÓW, PL
Schiaparelli PIERCED EAR CUFF BRACELET This hammered gold brass cuff bracelet is adorned with a surrealist molded ear embellished with a rhinestone piercing Size S/M
Brass
18kt Yellow Gold Australian Opal & Diamond Pendant
Located in San Francisco, CA
If you're looking for an Australian opal with phenomenal play of color, then look no further. This absolutely stunning piece features a natural wavy Australian boulder opal that disp...
Diamond, Opal, 18k Gold, Yellow Gold
Alexander McQueen F/W 2010 “Angels & Demons” Medieval Art Royalty Gown Dress
By Alexander McQueen
Located in Chicago, IL
From Alexander McQueen’s final collection, this spectacular piece features digitally printed imagery depicting Medieval religious artwork from German painter Stefan Lochner. The artw...
Schiaparelli crown ring, with gold brass and pearls. Iconic & sold out!
By Schiaparelli
Located in KRAKÓW, PL
Schiaparelli crown ring, with gold brass and pearls. Iconic & sold out!
Brass
$1,036Sale Price|20% Off
Size: 10
1990s Bob Mackie Size 10 Black Crepe Sexy 90s Vintage High Slit Evening Gown
By Bob Mackie
Located in San Diego, CA
Sexy, yet sophisticated 1990s BOB MACKIE black crepe bodycon evening dress! Features an elegant sweetheart neckline, with satin trim. Figure flattering silhouette that hugs the body ...
John Galliano for Christian Dior S/S 2009 Silk Halter Dress
By John Galliano, Christian Dior
Located in Water Mill, NY
A gorgeous rich purple silk halter dress by John Galliano for Christian Dior. It is fitted through the bodice with a stunning intricately detailed ruffle trimmed plunge halter neckli...
Dalben Magnificent Australian Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Dalben design 18k rose gold satin finishing ring with a 10,35 carat bezel-set oval shape magnificent Coober Pedy Australian crystal opal . This wonderful Australian Opal have a kal...
Opal, Gold, 18k Gold, Rose Gold
Doublet Opal Gold Ring Polychrome Gem Natural Harlequin Opal Polar Lights Unisex
Located in Berlin, DE
18K yellow gold ring with doublet of a natural black opal on a petrified wood base opal origin - Australia opal measurements - 0.12 х 0.35 х 0.94 in / 3 х 9 х 24 mm ring size - 7 US...
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
1970s Emanuel Ungaro Parallele Paris Vintage Camel Wool Cape Coat/ Jacket
By Emanuel Ungaro, Parallele
Located in Sparks, NV
Incredible vintage heavy wool cape coat by Emanuel Ungaro from the 1970s. Single button closure at the front of the neck. Beautiful camel colored wool. Unlined. This cape should fit ...
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).