Skip to main content

Boulder Opals

to
119
767
323
1,234
775
172
96
29
24
17
16
16
13
13
8
8
6
6
6
3
3
2
2
2
2
1
1
1
178
63
44
35
27
Sort By
Doublet Opal Gold 18k Stud Earrings
By Nina Wynn
Located in Denver, CO
. It’s also the birthstone for October. Several varieties are used in jewelry, including: -Boulder Opal
Category

21st Century and Contemporary Vietnamese Contemporary Stud Earrings

View from a Rainbow Australian Opal Ring in 14k Gold by NIXIN Jewelry
Located in Los Angeles, CA
mined in Opalton, Australia, this Pipe Boulder Opal now nests in a handmade gold ring. Its bezel setting
Category

2010s American Contemporary Solitaire Rings

Materials

Opal, 14k Gold, Yellow Gold

A.jeschel Remarkable Polished Chrysophase and Tiger Eye Necklace.
By A.Jeschel One-of-a-kind
Located in Miami, FL
Germany to showcase its remarkable rich green color. The stone is separated by beautiful Boulder Opal
Category

21st Century and Contemporary American Contemporary Beaded Necklaces

Materials

Chrysophrase, Opal, Tiger s Eye, Sterling Silver

10.43 Carats Ethiopian Opal Boulder Diamond Ruby Ring
Located in Barnsley, GB
This is a unique Ethiopian opal ring Shows off a mix of bright colors and with 64 diamonds and 35
Category

21st Century and Contemporary Art Deco Fashion Rings

Materials

Diamond, Opal, Ruby, 18k Gold

A.Jeschel A super Dramatic and Bold Tibetan pendant long necklace.
By A.Jeschel One-of-a-kind
Located in Miami, FL
attention. This dramatic piece boasts large brown turquoise plates, carved ox bone beads, Boulder opal, red
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Turquoise, Opal, Sterling Silver

Monseo Secret Garden Rose Gold, Diamonds and Opal Boulder Yowah Ring
By Monseo
Located in Porto, PT
24x31 mm opal boulder yowah. This piece is designed by Monseo and manufactured by Monseo artisans in
Category

2010s Portuguese Modern Fashion Rings

Materials

Diamond, Opal, Gold, 18k Gold, Rose Gold

Handmade 18 Kt Gold Necklace with Opals
Located in roma, IT
Handcrafted 18 kt gold necklace with milky white, donut-cut opals with central Australian boulder
Category

2010s Italian Pendant Necklaces

Materials

Opal, Gold

Floating Islands Collection - Opal and diamond ring
By Tayma Fine Jewellery
Located in Hong Kong, HK
. Gemstone weight: 1 Australian boulder backed Opal: 27.40 cts
Category

21st Century and Contemporary Hong Kong Cocktail Rings

Materials

Opal, White Diamond, 18k Gold, Yellow Gold

Floating Islands Collection - Opal and diamond detachable earrings
By Tayma Fine Jewellery
Located in Hong Kong, HK
kind. Gemstone weight: 4 Australian boulder backed Opals 36.12 cts total 196 brilliant VS diamonds
Category

21st Century and Contemporary Hong Kong Drop Earrings

Materials

Opal, White Diamond, 18k Gold, Yellow Gold

Natural Australian 6.06ct Opal Diamond Ring Pendant Transformer 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
handcrafted perfection. The gemstone at the centre of this opal ring is an Australian boulder-pipe opal from
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, Diamond, 18k Gold, Yellow Gold, White Gold

Australian Boulder Opal, Diamond and 18 Karat Gold Pendant Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
Ridge boulder opal with a hand fabricated Alhambra 18 karat gold setting. Accented with VS Canadian
Category

2010s American Artisan Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Natural Australian 5.40ct Boulder Opal Pendant Necklace 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
, straight into your heart, gently and persuasively.  Natural, untreated Australian boulder opal (5.40ct) was
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Boulder Opal, Drusy, Bracelet Set with Boulder Opal Earrings in 22k and 18k Gold
By Jennifer Kalled
Located in Wolfeboro, NH
If you like a boulder opal cuff bracelet to match your boulder opal earrings, then this jewelry
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Garnet, Opal, Sapphire, Zircon, 14k Gold, 18k Gold, 22k Gold

Collection Boulder opal pendants with silver
Located in Delft, NL
Collection Boulder opal pendants with silver Nine small boulder Opal pendants with silver eyelets
Category

Late 20th Century Oceanic Collectible Jewelry

Materials

Opal

Boulder Opal, Sugalite and Gold Bracelet
Located in Dallas, TX
Combination of Boulder Opal and Sugalite. Handmade one of a kind piece. 18k Gold. Made in Germany.
Category

2010s German Modern More Bracelets

Materials

Opal, 18k Gold

Dalben Sunrise Boulder Opal Gold Ring
By Oreste Dalben
Located in Como, IT
Opal. This Australian Boulder Opal looks like a sunrise landscape. Ring size 7 1/4 USA - 55 EU re
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold

Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A top gem quality 2.23 carat boulder opal with exceptional play of color showing strong flashes of
Category

21st Century and Contemporary More Rings

Materials

Diamond, White Diamond, Opal, Platinum

18k Yellow Gold Boulder Opal Pendant
Located in Towson, MD
boulder opal. Boulder opals are mined from ironstone boulders in the Australian outback and renowned for
Category

2010s Unknown Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Vintage Carved Boulder Opal Owl C.1970s
Located in New York, NY
Vintage Carved Boulder Opal Owl *Rare* 1970s The owl has served as nature’s greatest symbol of
Category

Mid-20th Century Unknown Pendant Necklaces

Materials

Opal, 14k Gold

Boulder Opal Ring 18 Karat 22 Karat Gold
By Jennifer Kalled
Located in Wolfeboro, NH
Every boulder opal is unique. The variety of color play in an opal is extraordinary. This boulder
Category

21st Century and Contemporary American Artisan More Rings

Materials

Opal, 14k Gold, 18k Gold, 22k Gold

Modern Boulder Opal Pendant Circa 1990s
Located in ADELAIDE, SA
Modern pendant featuring a Queensland Boulder solid opal pendant with a 55cm curb link chain
Category

Early 20th Century Modern Pendant Necklaces

Materials

Opal, 18k Gold

Boulder Opal Silver necklace
Located in Berlin, DE
Sterling silver pendant with natural Boulder Opal gemstone origin - Australia gem size is 0.39 x
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Magnificent Australian Boulder Opal Diamond Gold Cocktail Ring
Located in Beverly Hills, CA
From the fields of Australia this precious boulder opal has the most amazing play of color. It
Category

21st Century and Contemporary Australian Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Boulder Opal and Diamond Kite Pin
Located in Bal Harbour, FL
One of a kind kite pin featuring a beautiful blue and green boulder opal. The diamond accents
Category

Italian Brooches

Materials

Diamond, Opal, 18k Gold

Boulder Opal and Diamond Abstract Ring
Located in London, GB
This is an 18ct yellow gold boulder opal and diamond abstract ring. The central opal is rub-over
Category

20th Century Fashion Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Lilly Fitzgerald Boulder Opal Golden Wave Ring
By Lilly Fitzgerald
Located in Dallas, TX
One-of-a-Kind Wave Ring handcrafted in 22k yellow gold with a gorgeous smooth-top boulder opal
Category

21st Century and Contemporary American Cocktail Rings

Materials

Opal, 22k Gold, Gold, Yellow Gold

Boulder Opal Pendant with Tsavorite and Sapphires
By Charles Skibell
Located in Dallas, TX
Charles Skibell Custom designed 62.5ct Boulder Opal in 18ct yellow gold with Tsavorites and Blue
Category

2010s American Modern Pendant Necklaces

Materials

Opal, Blue Sapphire, Tsavorite, 18k Gold, Yellow Gold

Edwardian Boulder Opal Necklet Circa 1910-1920s
Located in ADELAIDE, SA
Boulder opal fob with a spectacular colour exchange seen from every angle of this beauty. Gemstone: One
Category

Vintage 1910s Australian Edwardian Pendant Necklaces

Materials

Opal, 15k Gold

Boulder Opal Gold Pendant Brooch
Located in Beverly Hills, CA
A gorgeous 37 carat boulder opal in 18K yellow gold with twisted gold designs around its bezel
Category

2010s Pendant Necklaces

Materials

18k Gold, Yellow Gold

Ocean Blue Australian Boulder Opal Gold Ring
By Vicki Orr
Located in Naples, FL
Modern, hand-fabricated blue and green Australian Boulder Opal and 22k yellow gold ring. Size 6 1
Category

2010s American Contemporary Cocktail Rings

Materials

Opal, 22k Gold, Yellow Gold, Gold

Vintage Boulder Opal Necklace of 14k Gold
Located in Lewisburg, PA
This vintage pendant (circa 1980-1990) features a colorful boulder opal in 14k gold. The pendant
Category

Late 20th Century Contemporary Pendant Necklaces

Materials

Opal, 14k Gold, 18k Gold

Australian Boulder Opal Diamond Gold Pendant
By H H Jewels
Located in Miami, FL
Nature’s beauty, this opal was extracted from an Australian boulder and handcrafted into this stunning 18kt
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

Boulder Opal Diamond Platinum Gold Ring
Located in Beverly Hills, CA
A lovey ring featuring a 5.87 carat boulder opal showing a unique pattern like a sunset over the
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Gold, 18k Gold, Yellow Gold, Platinum

Boulder Opal Cuff Bracelet Sapphire 22 Karat 18 Karat
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal cuff bracelet with 5 boulder opals in the green, blues and some flashes of red. 18k
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Opal, Sapphire, 14k Gold, 18k Gold, 22k Gold

Australian Boulder-Opal Diamond Gold Pendant
Located in Beverly Hills, CA
A luxurious pendant featuring a large Australian boulder opal weighing 27.92 carats. It has great
Category

21st Century and Contemporary American Pendant Necklaces

Materials

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

Michael Kneebone Turquoise Zircon Boulder Opal Amazonite Dangle Earrings
By Michael Kneebone
Located in Austin, TX
the turquoise are brilliant cut blue zircons (Myanmar), Boulder Opals (Boulder opal is one of the most
Category

2010s American Contemporary Dangle Earrings

Materials

Amazonite, Opal, Turquoise, Zircon, 18k Gold

Michael Kneebone Turquoise Zircon Boulder Opal Amazonite Dangle Earrings
By Michael Kneebone
Located in Austin, TX
the turquoise are brilliant cut blue zircons (Myanmar), Boulder Opals (Boulder opal is one of the most
Category

2010s American Contemporary Dangle Earrings

Materials

Amazonite, Opal, Turquoise, Zircon, 18k Gold

Boulder Opal Diamond Cuff Bracelet 22k 18k Gold
By Jennifer Kalled
Located in Wolfeboro, NH
What I love about Boulder Opal is not only the enormous variety in color, but also the pattern
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Opal, Diamond, 14k Gold, 18k Gold, 22k Gold

Black Opal Beads Boulder Opal Pendant 22 Karat Gold 18 Karat Gold
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opals and black opals are not only beautiful, but each boulder opal is truly one of a kind
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Opal, 14k Gold, 18k Gold, 22k Gold

Magnificent Australian Boulder Opal Diamond Platinum Gold Ring
Located in Beverly Hills, CA
A seriously special cocktail ring featuring a large 37.73 carat boulder opal from Lightning Ridge
Category

2010s Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold, Platinum

Rare Ethiopian Boulder Opal Pendant
By Steven Fox Jewelry
Located in Greenwich, CT
Designed by Steven Fox, this rare oval Ethiopian cabochon boulder opal is bezel set with round cut
Category

21st Century and Contemporary French Contemporary Drop Necklaces

Materials

Opal, 18k Gold

Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
A lovely example of the beauty of Australian boulder opal. This piece weighs approximately 10
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Platinum

Carolyn Tyler Fishnet Boulder Opal and Gold Necklace
By Carolyn Tyler
Located in Dallas, TX
Carolyn Tyler Fishnet Boulder Opal and Gold Necklace. 22k Gold with 140ct of Black Opal and
Category

2010s Indonesian Artisan More Necklaces

Materials

Opal, 22k Gold

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A fine Australian boulder opal with excellent play-of-color! The opal weighs 2.72 carats and
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Platinum

Large Boulder Opal and Diamond Pendant Necklace in Platinum
Located in La Jolla, CA
Large Boulder Opal and Diamond Pendant Necklace in Platinum Boulder Opal and Diamond Pendant
Category

21st Century and Contemporary North American Pendant Necklaces

Materials

Diamond, Opal, Platinum

14.51 Carat Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
A true gem opal from Australia, this fine boulder opal rivals the best black opals at a fraction of
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Platinum

Estate Boulder Opal Ring with Diamonds in 18k Yellow Gold
Located in La Jolla, CA
Estate Boulder Opal Ring with Diamonds in 18k Yellow Gold Boulder Opal Ring features one Pear
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Art Nouveau Boulder Opal Pearl Sapphire Necklace
Located in Santa Barbara, CA
beautiful designs in history. This boulder opal necklace encompasses all of the classic elements. Centering
Category

Antique 1890s Art Nouveau Pendant Necklaces

Materials

Opal, Pearl, Sapphire, 18k Gold, Yellow Gold

Australian Boulder Opal Diamond Gold Ring
Located in Beverly Hills, CA
A fine Australian boulder opal weighing 7.62 carats takes center stage. It has excellent play-of
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Gold, 18k Gold

Boulder Opal 22k 18k Gold Cuff Bracelet Diamond Tsavorite Garnet Andalusite
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder Opal cuff bracelet with a spectacular green matrix boulder opal. The cuff is designed with
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Diamond, Garnet, Opal, Tsavorite, 18k Gold, 22k Gold

Boulder Opal Ring 22k 18k Gold Wide Band
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal ring in 22k and 18k gold. The opal has great fire of blue, green, gold and orange
Category

21st Century and Contemporary American Artisan More Rings

Materials

Opal, 14k Gold, 18k Gold, 22k Gold

Boulder Opal Ring 22 Karat Gold 18 Karat Gold Aqua Flash
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal ring in a lovely aqua turquoise tone. The pattern of color in this boulder opal is
Category

21st Century and Contemporary American Artisan More Rings

Materials

Opal, 18k Gold, 22k Gold

Large 72.85 ct Boulder Opal and Diamond Pendant Necklace in Platinum
Located in La Jolla, CA
Large Boulder Opal and Diamond Pendant Necklace in Platinum Boulder Opal and Diamond Pendant
Category

20th Century Unknown Pendant Necklaces

Materials

Diamond, Opal, Platinum

H H Handmade Boulder Opal Slice Diamond Earrings
By H H Jewels
Located in Miami, FL
Become entranced by the mystical blue and green tones of these 15.86 carat Boulder Opal Slices
Category

2010s Dangle Earrings

Materials

Opal, 18k Gold, White Gold

Boulder Opal Necklace Black Opal Beaded 22 Karat Gold 18 Karat Gold
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal necklace on black opal beads & 18k gold beads. The boulder opals are wrapped in 22k
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Opal, 18k Gold, 22k Gold

Indicolite Tourmaline Boulder Opal Cabochon Dangle 18K Yellow Gold Earrings
By Sarosi By Timeless Gems
Located in Los Angeles, CA
paired with elongated boulder opal in these bezel-set, custom-made earrings. Boulder opal is colorful
Category

21st Century and Contemporary American Artisan Dangle Earrings

Materials

Opal, Tourmaline, Indicolite, Gold, 18k Gold, Yellow Gold

Modern Australian Boulder Opal Diamond Gold Ring
Located in Beverly Hills, CA
A uniquely designed ring featuring a natural boulder opal from Australia weighing approximately 3
Category

21st Century and Contemporary American Cocktail Rings

Materials

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

  • 1
  • ...
Get Updated with New Arrivals
Save "Boulder Opals", and we’ll notify you when there are new listings in this category.

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.