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BUNDA 24.21ct Boulder Opal in silver
Located in SYDNEY, AU
A BUNDA 'Couture' Boulder Opal pendant in sterling silver, featuring an Australian boulder opal
Category

2010s Australian Necklace Enhancers

Materials

Opal, Silver

Australian Boulder Opal Necklace
Located in Chesterland, OH
The necklace is 19 inches (48 cm) long, and the smooth round beads are 14mm in size. Boulder opals
Category

21st Century and Contemporary American Beaded Necklaces

Materials

Opal, Sterling Silver

Boulder opal pendent
Located in Bad Kissingen, DE
features an impressive boulder opal adorned with a silver frog set with bright red sapphires. A leaf made
Category

21st Century and Contemporary German Pendant Necklaces

Materials

Silver

Boulder opal pendent
Boulder opal pendent
W 1.38 in L 2.37 in
Boulder Opal from Australia – 116 ct
Located in New York, NY
This exquisite Boulder Opal from Australia showcases a vibrant play of colors, featuring electric
Category

2010s Australian Natural Specimens

Materials

Opal

Boulder Opal from Australia – 116 ct
Boulder Opal from Australia – 116 ct
H 1.1 in W 1.38 in D 0.7 in
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 from Australia – 191.95 ct
Located in New York, NY
This elegant Boulder Opal from Australia exudes sophistication with its delicate webbing of vibrant
Category

2010s Australian Natural Specimens

Materials

Opal

Boulder Opal Diamond Gold Ring
Located in Beverly Hills, CA
A magnificent ring featuring a 14.15 carat boulder opal bezel with exceptional play of color. The
Category

21st Century and Contemporary Fashion Rings

Materials

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

Boulder Opal from Australia – 397.45 ct
Located in New York, NY
This magnificent Boulder Opal from Australia is a true masterpiece of nature, showcasing a
Category

2010s Australian Natural Specimens

Materials

Opal

Boulder Opal from Australia – 397.45 ct
Boulder Opal from Australia – 397.45 ct
H 1.61 in W 2.95 in D 0.59 in
Boulder Opal, Emerald and Lapis Earrings
By Tinguely Bijoux
Located in Boston, MA
Gorgeous trio of custom cut Boulder Opal, sliced Emerald and Afghani Lapis Lazuli set in 18 karat
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Emerald, Lapis Lazuli, Opal, 18k Gold

Boulder Opal Ring with 18 Carat Yellow Gold
Located in Kirschweiler, DE
This Boulder Opal Ring with 18 Carat Yellow Gold is totally handmade and cut of one extraordinary
Category

2010s German Arts and Crafts Cocktail Rings

Materials

Opal, Yellow Gold, 18k Gold, Gold

Dalben Australian Boulder Opal Rose Gold Earrings
By Laura Dalben
Located in Como, IT
Australian boulder opal weight 7,85 carats . The australian boulder opals have an intense deep green blue
Category

21st Century and Contemporary Italian Contemporary Lever-Back Earrings

Materials

Opal, 18k Gold, Rose Gold, Gold

Boulder Opal and Diamond Abstract Ring
Located in London, GB
This is an 18ct yellow gold boulder opal and diamond abstract ring. The focal opal here is bezel
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Opal, Gold, White Gold, Yellow 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

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

Boulder Opal 18 Karat Yellow Gold Men’s Cufflinks
Located in Miami, FL
These cosmic boulder opal cufflinks are crafted in 18-karat yellow gold, weighing 26.4 grams and
Category

Vintage 1980s Cufflinks

Materials

Opal, 18k Gold, Yellow Gold

Dalben Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
light blue Australian Boulder Opal . The Australian boulder opal has wonderful green light-blue pastel
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose 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

19.82 carat Boulder Opal and Diamond Ring in Platinum
Located in La Jolla, CA
19.82 carat Boulder Opal and Diamond Ring in Platinum Diamond and Boulder Opal Ring features one
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Opal, Platinum

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A fine boulder opal from Australia with excellent play-of-color. The 3.85 carat gem opal shows a
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Platinum

Australian Boulder Opal Gold Cocktail Ring
Located in Beverly Hills, CA
boulder opal and has great play-of-color as is shows a dazzling array of blues and greens. Made in 18k
Category

21st Century and Contemporary American Fashion Rings

Materials

Opal, Gold, 18k Gold

14K Yellow Gold Australian Boulder Opal Diamond Earrings
By Thomas Laine LLC
Located in New York City, NY
Stunning One of A Kind 14K Yellow Gold Australian Boulder Opal Diamond Earrings. Hand Selected
Category

21st Century and Contemporary American Contemporary Lever-Back Earrings

Materials

Diamond, Opal, Yellow Gold, 14k Gold

18K Yellow Gold Australian Boulder Opal Diamond Earrings
By Thomas Laine LLC
Located in New York City, NY
Stunning One of A Kind 18k Yellow Gold Australian Boulder Opal Diamond Earrings. Hand Selected
Category

21st Century and Contemporary American Contemporary Lever-Back Earrings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Boulder Opal Ring Triple Gold Band 22k 18k Gold
By Jennifer Kalled
Located in Wolfeboro, NH
This Boulder opal ring has blue green fire with an undulating roof surface making it organic
Category

21st Century and Contemporary American Artisan Cocktail Rings

Materials

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

Boulder Opal Silver Earrings Dangle Navy Blue Delphinium Ariel Style
Located in Berlin, DE
Silver earrings with natural Boulder Opal opal origin - Australia boulder opal measurements - 0.2
Category

2010s German Artist Lever-Back Earrings

Materials

Opal, Silver

Tanzanite, Boulder Opal and Emerald Drop Earrings
By Tinguely Bijoux
Located in Boston, MA
These bold but lithe cascading earrings feature a dazzling array of emeralds, boulder opals and
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Emerald, Opal, Tanzanite, 18k Gold

Natural Boulder Opal Clip-On Earrings 14K Yellow Gold
Located in Dallas, TX
Natural Boulder Opal Clip-On Earrings in 14K Yellow Gold. The earrings feature two free form
Category

20th Century Clip-on Earrings

Materials

Opal, 14k Gold, Yellow Gold

Dalben Blue Rectangular Boulder Opal Yellow Gold Ring
By Oreste Dalben
Located in Como, IT
wonderful rectangular Boulder Opal. This Australian Boulder Opal has the seabed colors Ring size 7 1/4
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Gold, Yellow Gold

Dalben Very Long Boulder Opal Rose Gold Ring
By Oreste Dalben
Located in Como, IT
carats bezel-set blue Australian Boulder Opal. The Australian Boulder Opal has the deep blue green colors
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

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

21st Century and Contemporary American Pendant Necklaces

Materials

Emerald, Opal, 14k Gold

Vintage Platinum Diamond Boulder Opal Ring
Located in Flushing, NY
Vintage Platinum Diamond Boulder Opal Ring Approximate Dimensions: 7.5 (Ring Size) 13.45 mm x
Category

20th Century Engagement Rings

Materials

Diamond, Opal, Platinum

Fine Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
As good as it gets! This is a fine example of Australian opal; being a boulder opal or black opal
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Platinum

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A lovely platinum ring featuring a 1.46 carat boulder opal from Australia. It has great play of
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

18k Gold Australian Boulder Opal and Peridot Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A stylish and intriguing 18k gold pendant with a natural Australian boulder opal and a brilliant
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Opal, Peridot, 18k Gold

18k Gold Australian Boulder Opal and Amethyst Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A stylish and intriguing 18k gold pendant with a natural Australian boulder opal and a brilliant
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Amethyst, Opal, 18k Gold

Handmade Boulder Opal Yellow Gold Diamond Pave Drop Earrings
By H & H Jewels
Located in Miami, FL
Feel the luxurious power of 27.32 carats of stunning Boulder Opals embraced by the finest diamonds
Category

2010s North American Drop Earrings

Materials

Diamond, Opal, Yellow Gold

18k Gold Australian Boulder Opal and Diamond Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A stylish and intriguing 18k gold pendant with a natural Australian boulder opal and a Bolshevik
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

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

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A simple yet classy platinum ring featuring a 9.47 carat Australian boulder opal. The opal has
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Platinum

Natural Statement Boulder Opal Ring with 18 Carat Yellow Gold
Located in Kirschweiler, DE
This Boulder Opal Ring with 18 Carat Yellow Gold is totally handmade and cut of one extraordinary
Category

2010s German Arts and Crafts Cocktail Rings

Materials

Opal, Yellow Gold, 18k Gold, Gold

Michael Kneebone Boulder Opal Diamond Archaic Style Ring
By Michael Kneebone
Located in Austin, TX
Boulder opal forms the centerpiece of this archaic style ring. Boulder opal (origin: Queensland
Category

2010s Contemporary Cluster Rings

Materials

Diamond, Opal, 18k Gold

18k Gold Short Pink Boulder Opal and Diamond Necklace
By Angelina Fine Jewelry
Located in Amsterdam, NH
can appreciate the mesmerising beauty and uniqueness of boulder opals. Perfect on its own or for
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Opal, Diamond, 18k Gold

Boulder Opal Scratched Silver Ring Polychrome Multicolor Gemstones
Located in Berlin, DE
Scratched sterling silver ring with natural Boulder Opal opal origin - Australia stone measurements
Category

2010s German Artisan Solitaire Rings

Materials

Opal, Silver

Dalben Australian Boulder Opal Rose Gold Earrings
By Laura Dalben
Located in Como, IT
set Australian Boulder Opals weighing 12 carats. max width 16 mm height without leverback 34 mm
Category

21st Century and Contemporary Italian Contemporary Dangle Earrings

Materials

Opal, Gold, 18k Gold, Rose Gold

Lauren Harper Boulder Opal, Diamond, Gold Statement Necklace
By Lauren Harper
Located in Winnetka, IL
Vibrant blue Boulder Opal doublets are surrounded by 18kt Yellow gold and Diamonds in feminine and
Category

2010s Unknown Artist Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Dalben Trilogy Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Boulder Opals weight 4,34 carats . Ring size US 7 1/4 - EU 55 re-sizable . Bezels setting dimension
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose 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

Boulder Opal Pendant Mahogany Natural Unisex Necklace Ivy
Located in Berlin, DE
Boulder Opal necklace in sterling silver Opal origin - Australia Opal measurements - 0.16 x 0.51 x
Category

2010s French Artisan Pendant Necklaces

Materials

Opal, Silver, Sterling Silver

Boulder Opal Pendant Mahogany Natural Unisex Necklace Ivy
Boulder Opal Pendant Mahogany Natural Unisex Necklace Ivy
H 1.54 in W 0.51 in D 0.16 in L 0.94 in
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

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

Dalben Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
boulder opal The Australian Opal have pink , blue and green spots. Ring size US 6 3/4 - EU 54 re
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

Stunning Diamond-Set Australian Boulder Opal Pendant
Located in Palm Desert, CA
two round diamonds measure 1.8mm for a total carat weight of 0.04ctw. The meaning of Boulder Opal is
Category

Vintage 1970s American Retro Pendant Necklaces

Materials

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

Studio Greytak 'Boulder Opal Earrings on Copper' Amethyst, Citrine, & Peridot
By Studio Greytak
Located in Missoula, MT
MATERIALS Boulder Opal Amethyst Citrine Peridot Copper Silver
Category

21st Century and Contemporary American Modern Lever-Back Earrings

Materials

Amethyst, Citrine, Opal, Peridot, Silver, Copper

Pear-shaped Boulder Opal and Diamond Pendant Necklace in Platinum
Located in La Jolla, CA
Pear-shaped Boulder Opal and Diamond Pendant Necklace in Platinum Boulder Opal and Diamond
Category

21st Century and Contemporary North American Pendant Necklaces

Materials

Diamond, Opal, Platinum

Lauren Harper Boulder Opal Diamond Gold Necklace
By Lauren Harper
Located in Winnetka, IL
This boulder opal doublet and .68cts Diamond necklace is delicate yet bold. Colorful flashes of
Category

2010s Artist Choker Necklaces

Materials

Diamond, Opal, 18k Gold

Dalben Blue Green Australian Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
magnificent Queensland mine Australian boulder opal . The Australian Boulder Opal have deep blue and green
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Yellow Gold

18 Karat Gold Signet Ring with Diamonds and Boulder Opal
Located in New York, NY
), boulder opal Measuring 20mm x 5mm
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Diamond, Opal, 18k Gold, Gold

18 Karat Gold Signet Ring with Diamonds and Boulder Opal
By Amy Glaswand
Located in New York, NY
), boulder opal Measuring 20mm x 5mm
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Diamond, Opal, Gold, 18k Gold

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

20th Century Unknown Cocktail Rings

Materials

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

Boulder Opal Sapphire Pendant. 18k White Gold Opal Diamond Sapphire Necklace.
Located in Port Charlotte, FL
Stunning Australian Boulder Opal Abstract Cabochon Dangle pendant with accent diamonds and
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

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Boulder Opals For Sale on 1stDibs

Find an expansive variety of boulder opals available on 1stDibs. Frequently made of Gold, 18k Gold and Yellow Gold, these items were constructed with great care. Find a collection of 66 vintage versions or 364 modern creations for a more contemporary example of these cherished accessories. Our collection, which features older pieces for sale from the 18th Century and newer versions made as recently as the 21st Century, has proven very popular over the years. Our collection of boulder opals includes designs that are universally popular, but Contemporary and Artisan styles, specifically, are sought with frequency. Many examples in our inventory of these items are appealing no matter their origins, but Renata Bernard, Laura Dalben and Jennifer Kalled produced popular versions that are worth a look. Today, if you’re looking for cabochon boulder opals and are unable to find the perfect match, our selection also includes mixed cut and round cut alternatives. 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?

Prices for boulder opals can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $350 and can go as high as $207,600, while boulder opals, on average, fetch $5,128.

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.