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6.21 carat Blue Sky Australian Opal Cabochon Yellow Gold Ring, Talkative 2025
Located in Dallas, TX
From Shinobu Marotta of Talkative Atelier in Japan, this mesmerizing Australian boulder opal ring
Category

2010s Japanese Modern Dome Rings

Materials

Opal, Gold, 18k Gold, 22k Gold, Yellow Gold

18KT Florentine Engraved Opal and Diamond Halo Necklace
Located in Lynchburg, VA
gold is one boulder opal measuring 8.23 carats. It has a dark body color with vibrant play of color
Category

2010s Italian Neoclassical Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Sunstone, Lapis and Topaz Multi-Gemstone 22 Karat Gold Dangle Earrings
By Vicki Orr
Located in Naples, FL
ct) and Australian Boulder Opal (7.7 ct) gemstones. Dangle earrings are 2.94 inches in total length
Category

2010s American Contemporary Dangle Earrings

Materials

Lapis Lazuli, Opal, Topaz, Tourmaline, Turquoise, Turquoise Matrix, Mult...

Opal Diamond-Ring aus Mixed Gold
By CF goldundsilberschmiede
Located in Loßburg, DE
/- red gold 585/- Boulder Opal 5 colored Brilliants in total 0,4ct Designer: Christine Faulhaber CF
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, Blue Diamond, Yellow Diamond, Opal, Other, Gold, 14k Gold, 22k ...

Ocean Blue Opal Ring Gold Australian Blue Opal Statement Ring
By Alexey Gabilo
Located in Berlin, DE
Large Boulder Opal 18K white gold and blackened silver ring Opal origin - Australia stone
Category

2010s French Art Nouveau Cocktail Rings

Materials

Opal, Sterling Silver, Silver, White Gold, 18k Gold

18k Gold Paisley Earrings with Cabochon Chrysoprase Drops
By Angelina Fine Jewelry
Located in Amsterdam, NH
vary depending on selected gemstone. Worn here with Australian boulder opal necklace.
Category

2010s Dutch Artisan Dangle Earrings

Materials

Chrysophrase, 18k Gold

1.10 Carat Natural Australian Black Opal and Diamond Pendant Made in Platinum
Located in Tokyo, JP
A beautiful pendant featuring a 1.10 Carat, Natural, Australian Boulder Opal and 0.32 Carats of
Category

21st Century and Contemporary Japanese Modern Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Platinum

Opal Gold Earrings Polychrome Cosmic Purple Australian opal
Located in Berlin, DE
18K yellow gold stud earrings with natural Boulder Opal opal origin - Australia opal measurements
Category

2010s French Artisan Stud Earrings

Materials

Opal, Gold, 18k Gold, Yellow Gold

Dune Opal Ring Gold Precious Opal Gemstone Wedding Gift Unisex Jewelry Rainbow
By Alexey Gabilo
Located in Berlin, DE
"Dune" - 14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 14
Category

2010s French Artisan Cocktail Rings

Materials

Opal, Crystal, 14k Gold, Yellow Gold, Gold

18CT Yellow Gold Australian Opal Diamond Leaf Brooch
Located in Sydney, NSW
Australian Boulder Opal and glistening Diamonds. This exquisite piece of jewelry captures the essence of
Category

Vintage 1980s Australian Romantic Brooches

Materials

Diamond, Black Opal, 18k Gold, Yellow Gold

Modernist Opal Necklace by Paul Binder
By Paul Binder
Located in Litchfield, CT
Binder of Zurich, is set with a sublime Australian boulder opal surrounded by brilliant white diamonds
Category

Vintage 1980s Swiss Modernist Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

Big Opal Silver Ring Bicolor Blue Yellow Australian Unisex Jewelry
Located in Berlin, DE
Silver ring with natural Boulder Opal Opal origin - Australia Opal measurements - 0.2 x 0.59 x
Category

2010s German Artisan Fashion Rings

Materials

Opal, Silver, Sterling Silver

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
Category

2010s French Art Nouveau Pendant Necklaces

Materials

Opal, Gold, 14k Gold, Yellow Gold

Opal, Gold Pearl, Onyx Diamond Chandelier Earrings, 18K Gold, Austy Lee
By Austy Lee
Located in Hong Kong, HK
is made of Australian Boulder Opals, cultured South Sea Gold Pearls, Onxy, Ethiopian Opals and White
Category

21st Century and Contemporary Hong Kong Art Deco Chandelier Earrings

Materials

Diamond, White Diamond, Onyx, Opal, Pearl, Cultured Pearl, South Sea Pea...

Blue Sapphire, Opal Diamond Bracelet, 18K Gold, Austy Lee
By Austy Lee
Located in Hong Kong, HK
This unique and stylish bracelet features Natural Sri-lankan Blue Sapphires, Australian Boulder
Category

21st Century and Contemporary Hong Kong Modern Modern Bracelets

Materials

Diamond, Opal, Blue Sapphire, 18k Gold, White Gold, Rhodium

Large Opal Silver Ring Multicolor Magic Forest Natural Australian
By Alexey Gabilo
Located in Berlin, DE
Big silver ring with natural Boulder Opal opal origin - Australia opal measurements - 0.12 x 0.55
Category

2010s French Artisan Fashion Rings

Materials

Opal, Silver, Sterling Silver

Opal Silver Ring Triangle Multicolor Neon Sea Green Natural Australian Gemstone
Located in Berlin, DE
Large matte finish silver ring with natural Boulder Opal opal origin - Australia ring weight - 11.5
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Big Opal Silver Ring gift Triangle Multicolor Neon Sea Green Natural Australian
Located in Berlin, DE
Large matte finish 925 solid sterling silver ring with natural Boulder Opal opal origin - Australia
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

14.00 Carat Natural Loose Opal Cabochon From Ethiopia
Located in Peshawar, PK
types, including black opals (the most valuable), white opals, fire opals, and boulder opals. The
Category

21st Century and Contemporary Ethiopian Arts and Crafts Loose Gemstones

Materials

Opal

Opal Silver Ring Gold Plated Blue Natural special person gift friend
Located in Berlin, DE
Vintage style 18K gold plated 925 sterling silver ring with natural Boulder Opal gemstone origin
Category

2010s German Artist Cocktail Rings

Materials

Opal, 18k Gold, Gold Plate, Silver

8.50 Carat Natural Loose Opal Cabochon From Ethiopia, Africa
Located in Peshawar, PK
types, including black opals (the most valuable), white opals, fire opals, and boulder opals. The
Category

21st Century and Contemporary Ethiopian Arts and Crafts Loose Gemstones

Materials

Opal

Engagement Opal Ring Gold Unisex Tree of Fantasy Forest Lotr Style
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 14 carats
Category

2010s French Artisan Wedding Rings

Materials

Opal, Crystal, Yellow Gold, 14k Gold, Gold

Rye Australian Opal Unique Engagement Ring Gold Unisex Artisan Fine Jewelry Art
By Alexey Gabilo
Located in Berlin, DE
Nature inspred ring from signature Herbarium collection with an amazing large Boulder Opal in 14K
Category

2010s French Contemporary Dome Rings

Materials

Crystal, Opal, Gold, Yellow Gold, 14k Gold

Peter Suchy 7.97 Carat Opal Sapphire Garnet White Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Truly a one of a kind natural green flash boulder opal pendant necklace with natural sapphires and
Category

21st Century and Contemporary Pendant Necklaces

Materials

Garnet, Opal, Sapphire, Gold, 18k Gold, White Gold

Aquamarine Turquoise Sunburst Earrings in 18kt Gold by Lauren Harper
By Lauren Harper
Located in Winnetka, IL
can also be special ordered in boulder opals and aquamarines.
Category

2010s Artist Dangle Earrings

Materials

Aquamarine, Turquoise, Gold, 18k Gold

Opal Diamond White Gold Brooch by Prof. Friedrich Becker
Located in Berlin, DE
ways, due to the extraordinary precise mechanical workmanship. It is made of white gold with 6 boulder
Category

Vintage 1980s German Modern Brooches

Materials

Diamond, Opal, White Gold

Stephen DWECK Sterling Silver Floral carved ring - New, Never Worn 1990s
By Stephen Dweck
Located in Wallkill, NY
stones from all over the world tourmalines from Brazil, boulder opals from Australia, ammonites from
Category

1990s American Fashion Rings

Materials

Sterling Silver

Stephen Dweck Sterling Silver Gold Wash Jasper Ring 1992
By Stephen Dweck
Located in Wallkill, NY
nature. He collects stones from all over the world tourmalines from Brazil, boulder opals from Australia
Category

1990s American Dome Rings

Materials

Jasper, Sterling Silver

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
Category

2010s German Artisan Cocktail Rings

Materials

Opal, 18k Gold, Gold Plate, Silver

MODERNIST Studs Earrings In 14Kt Yellow Gold With Two Precious Opals
Located in Miami, FL
intense red, orange and yellow colors - the colors of a fire! Boulder Opal is opal with attached host rock
Category

20th Century American Modernist Stud Earrings

Materials

Opal, Gold, Yellow Gold, 14k Gold

Stephen Dweck Sterling Silver Citrine Ring New, Never Worn 1990s
By Stephen Dweck
Located in Wallkill, NY
world tourmalines from Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from the
Category

1990s American Fashion Rings

Materials

Citrine, Sterling Silver

Stephen Dweck Bracelet Sterling Silver Beads Bronze Galle Caps 1990s
By Stephen Dweck
Located in Wallkill, NY
stones from all over the world tourmalines from Brazil, boulder opals from Australia, ammonites from
Category

1990s American Beaded Bracelets

Materials

Sterling Silver, Bronze

Stephen Dweck Gold Wash Sterling Silver Multi Strand Bracelet 1980S
By Stephen Dweck
Located in Wallkill, NY
collects stones from all over the world tourmalines from Brazil, boulder opals from Australia, ammonites
Category

Vintage 1980s American Beaded Bracelets

Materials

Quartz, Sterling Silver

Boulder Koroit Opal Silver Long Earrings Australian Gemstone
Located in Berlin, DE
Long silver earrings with natural Boulder "Koroit" Opal 6 oval-cut opals, gemstone origin
Category

2010s German Artisan Dangle Earrings

Materials

Opal, Silver

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
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Gold Plate, Silver

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
Category

2010s European Artisan Pendant Necklaces

Materials

Opal, Gold Plate, Silver

Boulder Koroit Opal Silver Pendant Gold Plated Necklace opal wedding gift
Located in Berlin, DE
Sterling silver pendant with natural Boulder Koroit Opal and 18K gold plating gemstone origin
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Gold Plate, Silver

Opal necklace silver Blue Boulder Natural Australian Gemstone
Located in Berlin, DE
Matte finish silver pendant with natural Boulder "Koroit" Opal gemstone origin - Australia
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Silver

Elegant Australian Black Opal Diamond Drop Earrings in 18K Yellow Gold
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 18k Yellow Gold Australian Black/Boulder Opal: 1.14...
Category

2010s American Arts and Crafts Drop Earrings

Materials

Diamond, Opal, Black Opal, 18k Gold, Yellow Gold, Gold

1990s Stephen DWECK Citrine Bronze ring New Never worn
By Stephen Dweck
Located in Wallkill, NY
from Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from the South Sea. In
Category

1990s American Fashion Rings

Materials

Citrine, Base Metal

Sterling Ring Stephen DWECK carved Blue Goldstone Flower New, Never Worn
By Stephen Dweck
Located in Wallkill, NY
Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from the South Sea. In the past
Category

1990s American Fashion Rings

Materials

Sterling Silver

Stephen Dweck Bronze Wash Sterling Silver Smokey Quartz Ring 1990s
By Stephen Dweck
Located in Wallkill, NY
tourmalines from Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from the South Sea
Category

1990s American Solitaire Rings

Materials

Quartz, Sterling Silver

Natural Opal Pendant Boulder Australian Gemstone Gothic Style gift
Located in Berlin, DE
Pendant with natural Boulder "Koroit" Opal gemstone origin - Australia pendant weight - 6.25 grams
Category

2010s German Artist Pendant Necklaces

Materials

Opal

Stephen Dweck Sterling Silver Smokey Quartz Dangle Earrings 1990s Never worn
By Stephen Dweck
Located in Wallkill, NY
world tourmaline's from Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from
Category

1990s American Dangle Earrings

Materials

Quartz, Sterling Silver

Stephen Dweck Sterling Silver Lapis Ring 1992
By Stephen Dweck
Located in Wallkill, NY
stones from all over the world tourmaline's from Brazil, boulder opals from Australia, ammonites from
Category

1990s American Dome Rings

Materials

Sterling 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
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Australian Boulder Rainbow Oval Doublet Opal Studs Diamonds Solid 24k Gold
By Kurtulan
Located in Bozeman, MT
Australian Boulder Rainbow Oval Doublet Opal Stud Earrings w/ Diamonds Solid 24K Gold Oval Opals
Category

2010s Turkish Contemporary Stud Earrings

Materials

Diamond, White Diamond, Opal, 24k Gold, Yellow Gold

NWT $90, 000 Rare 18KT Gold Large 17CT Boulder Black Opal Fancy Diamond Pendant
Located in New York, NY
Black Opal and Diamond Gorgeous Pendant. Pendant features a Magnificent Rare Color Changing Black Opal
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Gold, 18k Gold

VICTORIAN 1880 Antique Ring In Yellow Gold With 8.95 Ctw In Opal And Diamonds
Located in Miami, FL
intense red, orange and yellow colors - the colors of a fire! Boulder Opal is opal with attached host rock
Category

Antique 1880s English Late Victorian Cocktail Rings

Materials

Diamond, Opal, Gold, Yellow Gold, Silver

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
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Silver

Opal and Diamond Halo Ring, Yellow Gold, Organic Shape Opal .88 Carat
By Five Star Jewelry
Located in Austin, TX
This organic Boulder blue opal is one of the most intense color that this gemologist has every seen
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, Opal, 14k Gold, Yellow Gold

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
Category

2010s French Aesthetic Movement Drop Necklaces

Materials

Opal, Gold, 14k Gold

Opal 18K Gold Italian Mesh Chain Surrealist Pendant Necklace
By Rossella Ugolini
Located in Rome, IT
jeweled huggins opal. Within the Opal Collection, Rossella selects only the finest boulder, crystal, fire
Category

2010s Italian Modern Drop Necklaces

Materials

Opal, Yellow Gold, Gold, 18k Gold

Opal 18K Yellow Gold Surrealist Unisex Single Surrealist Earring
By Rossella Ugolini
Located in Rome, IT
, but Rossella designs exclusively with the finest boulder, crystal, fire and blue opals available. Play
Category

2010s Italian Modern Stud Earrings

Materials

Opal, 18k Gold, Yellow Gold, Rhodium

Blue Australian Opal Silver Ring Valentines gift female friend wife anniversary
Located in Berlin, DE
Boulder "crystal pipe" Opal silver ring Opal origin - Australia size of the ring - 7 3/4 US
Category

2010s European Artisan Solitaire Rings

Materials

Opal, Silver

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
Category

2010s French Art Nouveau Cocktail Rings

Materials

Opal, Gold, 14k Gold, Yellow Gold

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
Category

2010s French Art Nouveau Dangle Earrings

Materials

Opal, Gold Plate, Silver, Sterling Silver

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Boulder Opals For Sale on 1stDibs

Browse a vast assortment of boulder opals for sale on 1stDibs. These distinct designs — crafted with great care and often made from gold, 18k gold and yellow gold — can elevate any look. Our selection of items includes 260 vintage examples as well as 1200 contemporary versions. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. contemporary and artisan are consistently popular styles when it comes to boulder opals. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Renata Bernard, Laura Dalben and Jennifer Kalled are consistently popular. There are many cabochon, oval cut and mixed cut boulder opals for sale. When shopping our range of boulder opals, you’ll find that there are less available pieces for men today than there are for women.

How Much are Boulder Opals?

On average, boulder opals at 1stDibs sell for $4,384, while they’re typically $1 on the low end and $350,000 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Opal in Jewelry Design

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).

Questions About Boulder Opals
  • 1stDibs ExpertAugust 17, 2021
    An Australian boulder opal is an opal mined from a large ironstone boulder under the ground. This type of opal is the second most valuable opal behind the black opal. Spot an Australian boulder opal by checking for a solid layer of brown ironstone left on the back of the stone. Shop Australian boulder opals on 1stDibs.