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Steven Battelle 23.3 Carats Koroit Boulder Opal Oxidized Sterling 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A fascinatingly unique 21 x 25 mm trillium cabochon of Australian Koroit Boulder Opal is
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Opal, 18k Gold

18 Karat Yellow Gold Boulder Opal Keshi Pearl Diamond Drop Dangle Earrings
By Joon Han
Located in New York, NY
Gorgeous one-of-a-kind drop dangle earrings of boulder opals, light grey keshi pearls and diamonds
Category

2010s Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Multi-gemstone, Opal, Pearl, Gold, 18k Gold, Yel...

Platinum large Boulder Opal Diamond Heavy Pendant
Located in New York, NY
Elevate your jewelry collection with this stunning platinum pendant featuring a mesmerizing boulder
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Opal, Platinum

Dalben Big Oval Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Australian Boulder Opal. The opal has pastel light blue-green colors with some pink waves. Ring size 7 1/4
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

Boulder Opal Diamond Ring. 18k Gold Genuine Opal Diamond Set Ring.
Located in Port Charlotte, FL
Stunning Australian Boulder Opal Cabochon Bezel set. Accented with Diamonds. Stunning for any
Category

21st Century and Contemporary Modern Wedding Rings

Materials

Diamond, Opal, Platinum

Jasper Boulder Opal Necklace Aquamarine Pearl 22k 18k Gold Sterling Silver
By Jennifer Kalled
Located in Wolfeboro, NH
abstract painting. The boulder opal, rose quartz, pearl, and aquamarine are perfect accents to the jasper
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Aquamarine, Opal, Pearl, Jasper, 18k Gold, 22k Gold, Sterling Silver

18 Karat Yellow Gold Keshi Pearl Boulder Opal Spinel Drop Dangle Earrings
By Joon Han
Located in New York, NY
Dangle earrings of keshi pearls, boulder opals and multicolored spinels, handcrafted in 18 karat
Category

2010s Contemporary Dangle Earrings

Materials

Multi-gemstone, Opal, Pearl, Spinel, Gold, 18k Gold, Yellow Gold

Peter Suchy Oval Australian Boulder Opal Yellow Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Opal pendant necklace. Natural oval free form Australian boulder opal on rock matrix (not a doublet
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 14k Gold, Yellow Gold

Large Australian Boulder Opal Red Green Blue Gemstone Ivy Silver Ring
By Alexey Gabilo
Located in Berlin, DE
Natural boulder Opal ring in blackened and gold plated silver Opal origin - Australia Opal
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Boulder Opal Silver Ring 5 carat anniversary opal wedding gift vintage style
Located in Berlin, DE
Scratched sterling silver ring with natural Boulder Opal opal origin - Australia opal measurements
Category

2010s German Artisan Signet Rings

Materials

Opal, Silver

18 Karat Gold and Aquamarine Drop Earring with Boulder Opal and Diamonds
Located in New York, NY
in the Boulder Opal mixed with a custom cut opaque Aquamarine. The diamond accents add a sparkle to
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Aquamarine, Diamond, Opal, Gold, 18k Gold

18k Gold Short Necklace with Opal Beads Australian Boulder Opal Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
dark opal beads. The iridescent stripe across the boulder opal shows plenty "play of color", the highly
Category

2010s Dutch Artisan Beaded Necklaces

Materials

Opal, Black Opal, 18k Gold

Syna Yellow Gold Boulder Opal Necklace with Diamonds
By Syna Jewels
Located in Fort Lee, NJ
Created in 18 karat yellow gold Boulder Opal 3.20 carats approx. Diamonds 0.10 carat approx. 18
Category

2010s Thai Contemporary Necklace Enhancers

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Steven Battelle 11.3 Carats Boulder Opal 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A bright, electric blue, variegated 12 x 27 mm oval boulder opal is set vertically in an
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Opal, 18k Gold

Natural 13.54 Ct carved Boulder Opal butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 13.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 20.08 Ct Carved Boulder Opal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.08 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal

Steven Battelle 4 Carats Boulder Opal Sterling 18k Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful irregular shaped 9 x 19 mm cabochon of Quipee mine Australian boulder opal displays
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Opal, 18k Gold

15.67 Carat Boulder Opal and Diamond Retro Style Pendant in 18k Yellow Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This one-of-a-kind pendant features a striking 15.67 carat boulder opal in an original Retro style
Category

21st Century and Contemporary North American Retro Pendant Necklaces

Materials

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

Large Boulder Opal Ring silver Green Blue Australian Gemstone unisex vintage
Located in Berlin, DE
Large matte finish silver ring with natural Boulder Opal opal origin - Australia opal weight
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Magnificent Australian Loose Black Boulder Opal of 5.50ct. 19mm x 12mm x 4mm.
Located in MELBOURNE, AU
This Australian Loose Boulder Opal is of impressive 5.50ct (19mm x 12mm x 4mm) from Winton
Category

Vintage 1980s Australian Loose Gemstones

Materials

Opal

1.8cts Boulder Opal Ring with Earth Mined Diamonds Accents: Solid 14k White Gold
Located in Columbus, OH
A stunning 14K solid white gold ring featuring an uneven-shaped natural Boulder Opal as the
Category

21st Century and Contemporary Modern Fashion Rings

Materials

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

Peter Suchy 8.16 Carat Boulder Opal Ruby Diamond Yellow Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Natural Australian boulder opal necklace with a halo of rubies and diamonds. The opal has bluish
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Aquamarine, Green Tourmaline and Boulder Opal French Clip Earrings in 18k Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
aquamarines and vibrant teal green tourmalines together with soothing lavender blue boulder opals! The boulder
Category

21st Century and Contemporary North American Artisan Clip-on Earrings

Materials

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

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
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Gold Plate, Silver, 18k Gold

Blue Boulder Opal ring Avatar Unisex natural opal ring Genuine opal jewelry
Located in Berlin, DE
Amazing silver ring with natural blue and green Boulder Opal Opal origin - Queensland, Australia
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Australian Boulder Opal 22 Karat Yellow Gold Cocktail Ring
By Vicki Orr Designs
Located in Naples, FL
Australian Boulder Opal and solid 22k hand forged yellow gold solitaire cocktail ring with a split
Category

2010s American Contemporary Cocktail Rings

Materials

Opal, Gold, 22k Gold, Yellow Gold

Australian Boulder Opal Pendant in Sterling Silver with 18k Gold Accents
Located in Berlin, BE
A striking pendant featuring a natural Boulder Opal from Queensland, Australia. Set in solid 925
Category

21st Century and Contemporary European Aesthetic Movement Pendant Necklaces

Materials

Opal, 18k Gold, Sterling Silver

Antique Silver Plated Bar Brooch with Three Doublet Boulder Opals
Located in London, GB
Fabulous antique silver plated bar brooch with three doublet boulder opals in an ornate setting
Category

Early 20th Century Brooches

Peter Suchy 4.90 Carat Boulder Opal Garnet Sapphire White Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
One of a kind boulder Opal, Sapphire and Tsavorite pendant necklace. Two natural boulder opals one
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

3-Tier Lapis Lazuli, Turquoise and Boulder Opal Gold Dangle Earrings
By Vicki Orr
Located in Naples, FL
Boulder Opal, and Carico Lake Turquoise (from the closed mine in Nevada, USA) gemstones. Dangle earrings
Category

2010s American Contemporary Dangle Earrings

Materials

Lapis Lazuli, Opal, Turquoise, Multi-gemstone, 22k Gold, Yellow Gold, Gold

Dalben Design Oval Australian Boulder Opal and Rose Gold Necklace
By Oreste Dalben
Located in Como, IT
Australian Boulder Opal weight 22,8 ct and a round australian opal on the rose gold closure weight 0,46 ct
Category

21st Century and Contemporary Italian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

Australian Boulder Opal 22 Karat Gold Hinged Pendant on Wire Necklace
By Vicki Orr
Located in Naples, FL
Australian Boulder Opal and hammered 22k yellow gold hinged pendant on 22k wire collar necklace
Category

2010s American Contemporary Pendant Necklaces

Materials

Opal, Gold, 22k Gold, Yellow Gold

49.50 Carats Total Boulder Opal and Amethyst Pendant in Yellow Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous handmade pendant features eight impressive boulder opals, beautifully arranged around
Category

21st Century and Contemporary North American Artisan Pendant Necklaces

Materials

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

18 Karat Yellow Gold Cabochon Tsavorite Boulder Opal Diamond Drop Dangle Earring
By Joon Han
Located in New York, NY
boulder opal drops, handcrafted in 18 karat yellow gold. These one-of-a-kind earrings of gorgeous
Category

2010s Contemporary Dangle Earrings

Materials

Diamond, Multi-gemstone, Opal, Tsavorite, Gold, 18k Gold, Yellow Gold

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
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Dalben Design Big Oval Australian Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
violet with a Blue-green lights spots wave line Australian Boulder Opal . Ring size 7 - EU 54 re
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Gold, Yellow Gold

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
Category

2010s German Artisan Chain Necklaces

Materials

Opal, Silver

Steven Battelle 9.2 Carats Australian Boulder Opal 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful electric blue and green, approximately 10 x 20 mm, semi-rectangular Australian boulder
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Opal, 18k Gold

18k Gold Australian Boulder Opal and South Sea Pearl Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
An exquisite 18k gold pendant with an Australian Boulder Opal and a golden South Sea Pearl. This is
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Opal, South Sea Pearl, 18k Gold

Dalben Design Light Blue Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Australian Boulder Opal . The stone has deep light blue colors with green light spots. Ring size 6 3/4 - EU
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Rose Gold, Gold

Australian Boulder Opal, Turquoise, Silver and 18 Karat Gold Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Stunning Australian Boulder Opal and Carico Lake turquoise (from the closed mine in Nevada, USA
Category

2010s American Contemporary Dangle Earrings

Materials

Opal, Turquoise, Multi-gemstone, Turquoise Matrix, 18k Gold, Sterling Si...

Oval Boulder Opal 2 Carat Round Cut Diamond Halo 18K Gold Vintage Ring
Located in Miami, FL
This elegant Vintage Boulder Opal Ring in 18K Yellow Gold showcases a stunning 22 x 11.5 mm opal
Category

1990s Art Deco Cocktail Rings

Materials

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

Boulder Opal And Diamond Long Pendant 14K Yellow Gold 0.85Cttw
Located in New York, NY
showcases a multicolored boulder opal at its center, overlaid with a diamond studded yellow gold design. A
Category

2010s Modern Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Natural 8.68 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 8.68 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal
Category

2010s Australian Loose Gemstones

Materials

Opal

Boulder Opal 18K Gold Silver Ring Natural Blue opal gemstone gift for wife
Located in Berlin, DE
Matte finish silver 18K gold plated ring with fine quality blue Boulder Opal gemstone origin
Category

2010s German Artist Cocktail Rings

Materials

Opal, Gold Plate, Silver, 18k Gold

Natural 5.89 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This amazing 5.89 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Steven Battelle 27.3 Carats Koroit Boulder Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
A nice 18 x 29 mm oval harlequin Koroit boulder opal with nearly every rainbow color displayed is
Category

21st Century and Contemporary Balinese Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

Natural 4.38 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.38 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

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
Category

21st Century and Contemporary Balinese Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

Australian Boulder Opal with Diamonds Designer Ring 18K Gold Platinum V1107
Located in Osprey, FL
This stunning Australian Boulder Opal Ring is made from 18K Gold and Platinum and is a statement
Category

2010s American Engagement Rings

Materials

Diamond, Opal, 18k Gold, Platinum

4.2ct Boulder Opal Ring w Earth Mined Diamonds in Solid 14K Gold Fancy 17x9mm
Located in Columbus, OH
This exquisite ring showcases a stunning 4.21 carat Boulder Opal in a smooth cabochon cut, set in a
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

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

Big Boulder Opal Silver Pendant gift for friend father birthday natural gemstone
Located in Berlin, DE
Silver pendant with natural Boulder Opal gemstone origin - Australia gem size - 9 х 36 mm gem
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Steven Battelle 10.9 Carats Australian Boulder Opal 18K Gołd Pendant
By Steven Battelle
Located in Soquel, CA
A deep blue 13 x 25 mm triangular cabochon of Australian Quilpie boulder opal is mounted in an
Category

21st Century and Contemporary Balinese Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

1ct Boulder Opal Ring w Diamond Accents in 14K Gold Fancy Shape 9x7mm
Located in Columbus, OH
sophistication to this already exquisite design. With its elegant blend of Boulder Opal and diamonds, the ring is
Category

21st Century and Contemporary Contemporary Wedding Rings

Materials

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

Natural 4.15 Ct Australian pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.15 Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 5.24 Ct Australian pink boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 5.24 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal

Big Boulder Opal Sterling Silver Ring October Birthstone
Located in Berlin, DE
Fine quality big Boulder Opal ring in silver ring size - 8.5 US / 58 EU / 18.5 weight of the Opal
Category

2010s German Artisan Cocktail Rings

Materials

Opal, 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.