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Large Boulder Opal Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
A fanciful cocktail ring featuring a 25.73 carat boulder opal. The opal shows layers of colors
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Platinum

Boulder Opal Pendant with Gemstones and Diamonds in 18k Yellow Gold
Located in La Jolla, CA
Boulder Opal Pendant with Gemstones and Diamonds in 18k Yellow Gold Large Boulder Opal Pendant
Category

20th Century North American Pendant Necklaces

Materials

Diamond, Emerald, Opal, Ruby, Tourmaline, Paraiba, 18k Gold, Yellow Gold

Boulder Opal Cuff Bracelet Sapphire Emeralds 22k 18k Sterling Silver
By Jennifer Kalled
Located in Wolfeboro, NH
This is a stunning boulder opal with all the fire, color and jump one wants in an boulder opal. I
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Emerald, Opal, Sapphire, 18k Gold, 22k Gold, Sterling Silver

Estate Boulder Opal Cabochon and Diamond Necklace in Platinum
Located in Los Angeles, CA
Beautiful estate necklace featuring a 8.86 ct Boulder opal cabochon and 0.68 ct of good quality
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Opal, Platinum

Black Opal Beaded Necklace with Boulder Opal in 22k Gold 18k Gold
By Jennifer Kalled
Located in Wolfeboro, NH
Black opal & boulder opal necklace with 18k gold spacers. The color in the boulder opal has
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Lapis Lazuli, Opal, 14k Gold, 18k Gold, 22k Gold

2.61 Carat Australian Boulder Opal Gemstone Oval 13x7mm Loose Gemstone
Located in Columbus, OH
Presenting a 2.61 carat Australian boulder opal loose gemstone! Each piece is one-of-a-kind with
Category

2010s American Loose Gemstones

Materials

Opal

Boulder Opal Diamond Yellow Gold Drop Earrings
Located in Los Angeles, CA
Boulder opal and diamond yellow gold drop earrings circa 2000. * ABOUT THIS ITEM: #E-DJ612G
Category

Early 2000s Contemporary Drop Earrings

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Hand Forged Australian Boulder Opal Minimalist Gold Ring
By Vicki Orr
Located in Naples, FL
Australian Boulder Opal has a natural separation of its green & blue coloration, which is accentuated with a
Category

2010s American Contemporary Cocktail Rings

Materials

Opal, 22k Gold, Yellow Gold, Gold

Australian Boulder Opal Diamond Gold Platinum Pendant
Located in Beverly Hills, CA
A stylish pendant featuring a natural Australian boulder opal set in a two-tone gold and platinum
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Gold, 18k Gold, Platinum

Antique Boulder Opal Conversion Necklace of 14k Gold
Located in Lewisburg, PA
boulder opal, shimmering with flashes of iridescent color, framed by delicate enamel detailing and
Category

Early 20th Century Edwardian Pendant Necklaces

Materials

Opal, Pearl, 14k Gold, Enamel

22.31 ct Boulder Opal Pendant Necklace in 18k 14k Yellow Gold
Located in La Jolla, CA
22.31 ct Boulder Opal Pendant Necklace in 18k & 14k Yellow Gold Boulder Opal Pendant Necklace
Category

21st Century and Contemporary North American Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Australian Boulder Opal Diamond Platinum Gold Ring
Located in Beverly Hills, CA
A superb boulder opal from Australia with bright flashes of color. The opal weighs 9.61 carats and
Category

21st Century and Contemporary American Cocktail Rings

Materials

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

5.10 Carat Emerald Boulder Opal Diamond Pendant Necklace 18 Karat
By Emeralds Maravellous
Located in US
form Australian boulder opal 3.50 carat with great play of colors. The pendant necklace also feature a
Category

21st Century and Contemporary American Contemporary Drop Necklaces

Materials

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

Lauren Harper Boulder Opal Diamond Matte Gold Axis Earrings
By Lauren Harper
Located in Dallas, TX
boulder opal oval discs and accented with 1.42 total carats of white diamonds.
Category

2010s American Artist Dangle Earrings

Materials

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

Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
A large and impressive boulder opal from the famous opal fields of Australia. This particular opal
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Platinum

Australian Boulder Opal Shell Pendant, with Amethyst and 14k Gold
By Jen Proudman Jewelry
Located in New York, NY
Australian Boulder Opal Shell Pendant Australian Opal, Amethyst & 14k Gold This very special opal
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Amethyst, Opal, 14k Gold

Matrix Boulder Opal Cuff Bracelet 22k 18k 14k Gold Sterling Silver
By Jennifer Kalled
Located in Wolfeboro, NH
boulder opal cuff bracelet is approximately 1" wide. Boulder opal is a gem with endless inspiration given
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Opal, 18k Gold, 22k Gold, Sterling Silver

Fine Australian Boulder Opal Diamond Gold Pendant
Located in Beverly Hills, CA
A superb boulder opal from Australia takes center stage in this fabulous pendant. The opal weighs
Category

21st Century and Contemporary American Pendant Necklaces

Materials

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

Boulder Opal Ring in 22 Karat Gold Bezel 18 Karat Gold Shank
By Jennifer Kalled
Located in Wolfeboro, NH
The beauty of boulder opal is not only seen in its color, but also the variety of the type of
Category

21st Century and Contemporary American Artisan More Rings

Materials

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

5.02 Carats Australian Boulder Opals Diamond Gold Earrings
By H H Jewels
Located in Miami, FL
boulder opals. The mystical stones are embraced by .39ct of G/H SI2 diamond pave. 1.04ct of J/K SI1 graded
Category

21st Century and Contemporary American Lever-Back Earrings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Boulder Opal Diamond Gold Flower-Bouquet Brooch-Pendant
Located in Beverly Hills, CA
Australian boulder opal with great play of color, showing strong flashes of greens and blue. The other
Category

21st Century and Contemporary American Brooches

Materials

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

Boulder Opal Diamond Pendant Necklace in 18k Yellow Gold and Platinum
Located in La Jolla, CA
Boulder Opal & Diamond Pendant Necklace in 18k Yellow Gold and Platinum Opal Pendant Necklace
Category

21st Century and Contemporary North American Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Boulder Opal Silver Necklace Galaxy Iridescent Natural Australian Gemstone
Located in Berlin, DE
Scratched silver pendant with natural Boulder Opal gemstone origin - Australia gem size - 0.35 х
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Boulder Opal Gold Cuff Bracelet 22 Karat Gold 18 Karat Gold Textured
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal cuff bracelet in 22k gold and 18k gold. Boulder opal is from Queensland, Australia
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

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

18 Karat Rose Gold Chalcedony Boulder Opal Amethyst Drop Dangle Earrings
By Joon Han
Located in New York, NY
One-of-a-kind earrings of chalcedony, boulder opals, and Rose de France amethysts, handcrafted in
Category

2010s Contemporary Dangle Earrings

Materials

Amethyst, Chalcedony, Multi-gemstone, Opal, Gold, 18k Gold, Rose Gold

Boulder Opal Ivy Black Gold Ring Bright Blue Opalscent Gemstone Kingfisher Bird
By Alexey Gabilo
Located in Berlin, DE
This statement ring features a boulder opal that displays a striking play-of-color with
Category

2010s French Art Nouveau Fashion Rings

Materials

Opal, Gold, 14k Gold

Australian Boulder-Opal Diamond Sculpted-Gold Cocktail Ring
Located in Beverly Hills, CA
boulder opal from Australian weighing approximately 4 carats and shows flashes of green and blue It is
Category

21st Century and Contemporary American Cocktail Rings

Materials

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

Lauren Harper Boulder Opal Diamond Gold Statement Cocktail Ring
By Lauren Harper
Located in Winnetka, IL
Vibrant Boulder Opal Doublets are surrounded by faceted white diamonds and set in 18kt Gold, making
Category

2010s Artist Cocktail Rings

Materials

Diamond, Opal, 18k Gold

Boulder Opal Ring Green Fire 22 Karat Gold 18 Karat Gold size 7.5
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal ring with the most intense green & blue fire, one cannot stop looking at, it even has
Category

21st Century and Contemporary American Artisan More Rings

Materials

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

Antique Boulder Opal Ring of 18k Gold
Located in Lewisburg, PA
This ring features a boulder opal set in an 18k gold mounting. It was created from an antique
Category

Antique 1890s Victorian Solitaire Rings

Materials

Opal, 18k Gold

7.72 Carat Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A large and beautiful Australian boulder opal is set in this stylish platinum ring. The opal weighs
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Platinum

Platinum 5.12 Carat Boulder Opal Ring with Diamond Accents
Located in Cape May, NJ
Hallmarks: PT900 Composition: Platinum Primary Stone: Boulder Opal Stone Carat: Approximately
Category

Late 20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Natural Boulder Opal and Mixed Gem Ring in Platinum and 18k Gold
Located in La Jolla, CA
Natural Boulder Opal and Mixed Gem Ring in 18k Multitone Gold and Platinum Boulder Opal and
Category

21st Century and Contemporary North American Cocktail Rings

Materials

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

Boulder Opal Oval and White Diamond Earrings in 18k Yellow Gold
Located in Los Angeles, CA
Beautiful 5.50 ct. Boulder opal ovals with 0.03 ct. white diamond rounds. Handmade 18k yellow gold
Category

21st Century and Contemporary Clip-on Earrings

Materials

White Diamond, Opal, Yellow Gold

Boulder Opal Blue Topaz Gold Earrings by Lauren Harper
By Lauren Harper
Located in Winnetka, IL
Boulder Opal Doublets are at the center of these hand crafted 18kt Gold earrings by Lauren Harper
Category

2010s Artist Drop Earrings

Materials

Opal, Topaz, 18k Gold

Boulder Opal Silver Pendant Natural Australian Gemstone Unisex Mens Jewelry
Located in Berlin, DE
Silver pendant with Boulder Opal gemstone origin - Australia opal measurements - 0.2 x 0.59 x 0.79
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Boulder Opal Ring Green Fire 22 Karat Gold 18 Karat Gold size 7.5
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal ring in 22k and 18k gold. The green color and flash in this boulder opal is stunning
Category

21st Century and Contemporary American Artisan More Rings

Materials

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

Boulder Opal and White Diamond Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 0.91 ct. Boulder opal oval with 0.52 ct. white diamond rounds. Handmade in 18k white
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Opal, White Gold

Boulder Opal Silver Pendant Pale Natural Australian Gemstone Unisex Jewelry
Located in Berlin, DE
Boulder Opal pendant in matte finish silver gemstone origin - Australia opal measurements - 0.16 x
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Silver

3.65cts, 15x10mm Boulder Opal Pendant w Natural Diamond Accents in 14K Gold
Located in Columbus, OH
3.64ct boulder opal pendant in solid 14k gold with bezel setting, accented by earth-mined diamonds
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Opal, Gold, 14k Gold, Yellow Gold

Boulder Opal Scratched Silver Ring Neon Dark Blue Stone Jewelry
Located in Berlin, DE
Scratched gold plated silver ring with natural Boulder Opal opal origin - Australia opal
Category

2010s German Modern Fashion Rings

Materials

Opal, Gold Plate, Silver, Sterling Silver

11.88 Carat Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
opal but at a fraction of the price, this 11.88 carat boulder opal is a gem. It has excellent play-of
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Platinum

Natural Boulder Opal Pendant Multi-Color Vein Vintage 14 Karat Gold Jewelry
Located in Torrance, CA
Finely detailed vintage pendant set with a natural boulder opal set in 14k white gold. The
Category

Mid-20th Century Unknown Modern Pendant Necklaces

Materials

Opal, 14k Gold, White Gold

Matrix Boulder Opal Necklace Andalusite Beaded 22 Karat Gold 18 Karat Gold
By Jennifer Kalled
Located in Wolfeboro, NH
Matrix opals from Australia are like abstract paintings and the matrix boulder opal in this
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Opal, 18k Gold, 22k Gold

Boulder Opal and Aquamarine Bezel Set Dangle Earrings in Yellow Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
These one-of-a-kind boulder opal earrings have a truly organic feel and an air of worldly
Category

21st Century and Contemporary American Artisan Dangle Earrings

Materials

Aquamarine, Opal, Multi-gemstone, 18k Gold, Yellow Gold, Gold

Vintage 14k Yellow Gold Boulder Opal Drop Earrings
Located in New York, NY
striking freeform boulder opals, celebrated for their mesmerizing play of color. Each opal displays vivid
Category

20th Century Drop Earrings

Materials

Opal, 14k Gold, Yellow Gold

Stunning 15.25 Carat Australian Boulder Opal Platinum Ring
Located in Beverly Hills, CA
A very fine and impressive Australian boulder opal takes center stage. It weighs a massive 15.25
Category

21st Century and Contemporary American Fashion Rings

Materials

Opal, Platinum

Boulder Opal Diamond Earrings 14 Karat Rose Gold Estate Fine Jewelry Freeform
Located in Torrance, CA
Elegant pair of boulder opal & diamond earrings crafted in 14k rose gold. The boulder opals
Category

Mid-20th Century Unknown Modern Drop Earrings

Materials

Diamond, White Diamond, Opal, 14k Gold, Rose Gold

Vintage 10.74 Carat Boulder Opal and Diamond Pendant Necklace
Located in Santa Barbara, CA
A fabulous vintage heirloom, this vivacious boulder opal pendant necklace is a statement of natural
Category

Late 20th Century Australian Contemporary Pendant Necklaces

Materials

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

Antique Victorian Tiffany Co. Boulder Opal Five Stone Wedding Band
By Tiffany Co.
Located in Great Neck, NY
Beautiful Antique Victorian Tiffany and Co Boulder Opal Five Stone Wedding Band - Size 8. This
Category

Antique 1890s Unknown Victorian Band Rings

Materials

Opal, 18k Gold

Boulder Opal Ring 22 Karat Gold 18 Karat Gold Band Green Blue Fire
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal ring in 22k gold with a 18k gold shank. The large flashes of blue, green with a tad
Category

21st Century and Contemporary American Artisan More Rings

Materials

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

Vintage 18k Yellow Gold Australian Boulder Opal Ring
Located in New York, NY
Crafted in 18K yellow gold, this ring features a mesmerizing boulder opal as its centerpiece. The
Category

21st Century and Contemporary Engagement Rings

Materials

Opal, 18k Gold, Yellow Gold

2.2ct Boulder Opal Pendant w Natural Diamonds in Solid 14K Gold
Located in Columbus, OH
This 2.2-carat boulder opal pendant is enhanced by four sparkling earth-mined diamond accents, all
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Opal, Gold, 14k Gold, Yellow Gold

Boulder Opal Silver Pendant Blue Natural Australian Gemstone Valentines day gift
Located in Berlin, DE
Silver pendant with Boulder Opal gemstone origin - Australia opal weight - 12.25 carat pendant
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Lauren Harper Boulder Opal Disc Diamond Matte Gold Eternity Band Ring
By Lauren Harper
Located in Dallas, TX
Eternity Band handcrafted in matte-finished 18k yellow gold with oval boulder opal discs surrounded
Category

2010s American Artist Band Rings

Materials

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

Boulder Opal Pave Diamond Ring 14 Karat Rose Gold Freeform Cocktail Jewelry
Located in Torrance, CA
Stylish boulder opal & diamond cocktail ring crafted in 14 karat rose gold. Boulder opal measures
Category

Mid-20th Century Unknown Modern Cocktail Rings

Materials

Diamond, White Diamond, Opal, 14k Gold, Rose Gold

Carved Chrysocolla Pendant Boulder Opal Mexican Opal 22k 18k Fine Silver
By Jennifer Kalled
Located in Wolfeboro, NH
, with a boulder opal that has every color and incredible fire. Just dances! The Mexican opal brings such
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Opal, Chrysocolla, Fire Opal, 14k Gold, 18k Gold, 22k Gold, 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.