Harlequin Opal
3.48 Carat Black Harlequin Opal and Diamond Platinum Ring Estate Fine Jewelry
Located in Montreal, QC
Simply Beautiful! Finely detailed Cocktail Ring, center securely nestled with a Black Harlequin
Category
21st Century and Contemporary Modern Cocktail Rings
Materials
Diamond, Opal, Platinum
Edwardian 6.00 Ct Harlequin Opal 1.80 Ct Diamond 18 KT Pendant
Located in Napoli, IT
– assay on the chain
Gems: 1 oval cabochon cut natural harlequin opal of approx 6.00 Ct (19.25 mm. x 9.33
Category
Early 20th Century European Edwardian Pendant Necklaces
Materials
Diamond, Opal, 18k Gold, 9k Gold, Platinum
Opal Gold Ring Polychrome Gem Natural Harlequin Opal Unisex
Located in Berlin, DE
18K yellow gold ring with doublet of a natural black opal on a petrified wood base
opal origin
Category
2010s French Art Nouveau Engagement Rings
Materials
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Doublet Opal Gold Ring Polychrome Gem Natural Harlequin Opal Polar Lights Unisex
Located in Berlin, DE
18K yellow gold ring with doublet of a natural black opal on a petrified wood base
opal origin
Category
2010s French Art Deco Fashion Rings
Materials
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
$4,008 Sale Price
39% Off
Vintage opal, emeralds and diamonds necklace
Located in Milano, MI
Vintage pendantif set in white and yellow 18ct gold,
centering an important white harlequin opal
Category
20th Century European Pendant Necklaces
Materials
Diamond, Emerald, Opal, 18k Gold
Diamonds Opal 14 Karat Yellow Gold Cocktail Ring
Located in Marcianise, IT
beautiful cabochon-cut harlequin opal surrounded on a silver patch by old rose cut diamonds.
The reason for
Category
Vintage 1950s Italian Retro Cocktail Rings
Materials
Diamond, Opal, 14k Gold, Yellow Gold
Art Nouveau 2.25 Ct Solid Australian Opal Diamond Tiara Ring
Located in Napoli, IT
gemstones
Opal is of mesmerizing harlequin flashy colours catching colour hues as you turn it in the light
Category
Early 20th Century European Art Nouveau Cluster Rings
Materials
Diamond, Opal, 18k Gold
Opal Gold Necklace Harlequin pattern Opal wedding anniversary gift ideas
Located in Berlin, DE
18K yellow gold necklace with natural fine quality Harlequin pattern Opal
opal origin - Australia
Category
2010s German Artisan Pendant Necklaces
Materials
Opal, Gold, 18k Gold, Yellow Gold
Boulder Opal 81 carat Freeform Fine Gemstone harlequin
Located in Berlin, DE
Colorful boulder koroit Opal a freeform shape
Opal origin - Australia
Opal measurements - 0.31 х
Category
2010s Australian Artisan Vanity Items
Materials
Opal
Antique Edwardian 5 Carat Australian Black Opal Brooch Pendant Yellow Gold 1900s
Located in Lisbon, PT
Antique Edwardian Australian Lightning Ridge Harlequin Precious Black Opal and White Opal Brooch
Category
Antique Early 1900s English Edwardian Brooches
Materials
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
$35,302
W 0.63 in L 2.45 in
Fiery Australian Black Opal and Diamond Cocktail Ring
Located in Santa Barbara, CA
This extraordinary cocktail ring features a phenomenal 3.48 carat Australian black opal with a
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, Opal, Black Opal, Platinum
Art Deco Black Opal Ring Platinum Diamond Estate Jewelry
Located in Beverly Hills, CA
harlequin pattern, with vibrant patches of green and blue shifting across the gemstone. The opal is set in a
Category
Vintage 1920s Unknown Art Deco Cocktail Rings
Materials
Diamond, White Diamond, Opal, Black Opal, Platinum
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
8.10ct Ethiopian Black Opal Diamond Ring Oval Princess Estate 14k Gold Cocktail
Located in Torrance, CA
/orange/yellow/green/ play of color in a harlequin pattern on a black background. The opal is Ethiopian in
Category
21st Century and Contemporary American Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold
Recent Sales
Alexandra Mor 13.07 Carat Checkerboard - Harlequin Opal and Diamond Ring
By Alexandra Mor
Located in New York, NY
An Alexandra Mor ring featuring a *Checkerboard- Harlequin Opal & Diamonds detailed with Alexandra
Category
21st Century and Contemporary American Contemporary Fashion Rings
Materials
Diamond, Opal, 18k Gold, Platinum
Prettiest Edwardian 6.00 Carat Harlequin Opal and Diamond Necklace
Located in Napoli, IT
Centred by a natural Australian solid Harlequin opal with white body and amazing colour play flashes
Category
Antique Early 1900s Edwardian Pendant Necklaces
Materials
Diamond, Opal, 10k Gold, 18k Gold, Platinum
1870s Victorian 7.0 Carat Natural Harlequin Opal Diamond Enamel Gold Bangle
Located in Napoli, IT
with an enormous Harlequin Opal surrounded by Diamonds.
Bangle is of wide measure fully covered by
Category
Antique 1870s Victorian Bangles
Materials
Diamond, Opal, 18k Gold, Sterling Silver
Rare Harlequin Pattern Solid Semi Black Opal Diamond Ring 9ct Gold Valuation
Located in Mona Vale, NSW
Rare Solid Semi Black Harlequin Opal Ring
This beautiful, retro style ring features a 1.21ct solid
Category
2010s Australian Modern Cocktail Rings
Materials
Diamond, Opal, Black Opal, Gold, 9k Gold
Beautiful Victorian Opal and 2.60 Carat Diamond Fly Brooch/Pendant
Located in Napoli, IT
1.60 Ct (G-VVS/VS) - 3 oval cabochon cut natural Harlequin Opal of 9 x 5 mm.
Back allows wearing it
Category
Antique 1880s Victorian Pendant Necklaces
Materials
Diamond, Opal, 18k Gold
Late Art Deco 2.90 Carat Natural Opal and Diamond Rare Ring
Located in Napoli, IT
Below
Metal: 14 Kt yellow gold
Hallmarks: assay
Gems: 1 oval cabochon cut natural harlequin opal of
Category
Vintage 1930s Art Deco Cocktail Rings
Materials
Diamond, Opal, 14k Gold
Victorian 10.50 Carat Heart Multi Opal 1.45 Carat Diamond Brooch Pendant
Located in Napoli, IT
/worn
Gems: 7 heart shaped natural harlequin opals of 6 mm. x 5.5 mm. (average) approx 10.50 Ct in total
Category
Antique 1880s Victorian Pendant Necklaces
Materials
Diamond, Opal, 18k Gold, Silver
Victorian Natural Opal 1.80 Carat Old Mine Diamond Ring
Located in Napoli, IT
cut natural Harlequin opal of approx 1.70 Ct (10.80 mm. x 7.04 mm.) - 2 cushion old mine cut diamonds
Category
Antique 1880s Victorian Cluster Rings
Materials
Diamond, Opal, 18k Gold
40 Carat Multi-Color Harlequin Pattern Free-Form Custom Opal Pendant
Located in Walnut Creek, CA
This is a one of a kind 14 karat yellow gold 40 carat, multi color, harlequin pattern, free form
Category
Vintage 1980s American Contemporary Necklace Enhancers
Materials
Diamond, Opal, Pink Sapphire, Tsavorite, 14k Gold
Antique 5.72 Carat Harlequin Opal and 7.52 Carat Diamond 12K Yellow Gold Pendant
Located in Jesmond, Newcastle Upon Tyne
A magnificent, fine and impressive antique 5.72 carat harlequin opal and 7.52 carat diamond, 12
Category
Antique 1890s Unknown Pendant Necklaces
Materials
Diamond, Opal, Yellow Gold, Platinum
H 1 in W 1 in D 1 in Dm 1 in L 1 in
1930s Art Deco Opal Diamond Platinum Ring
Located in London, GB
An impressive Art Deco harlequin black opal and diamond ring in platinum, circa 1935. The ring is
Category
Vintage 1920s Unknown Art Deco Engagement Rings
Materials
Diamond, Opal, Platinum
1930s Art Deco Opal Diamond Platinum Ring
Located in London, GB
An impressive Art Deco harlequin black opal and diamond ring in platinum, circa 1935. The ring is
Category
Vintage 1920s Unknown Art Deco Engagement Rings
Materials
Diamond, Opal, Platinum
Art Deco Harlequin Precious Black Opal Baguette Diamond Engagement Ring Platinum
Located in Lisbon, PT
Art Deco Australian Lightning Ridge Harlequin precious black opal and baguette-cut diamond
Category
Vintage 1930s American Art Deco Engagement Rings
Materials
Diamond, Opal, Black Opal, Platinum
Rare Harlequin Australian Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A harlequin pattern is rarely found in opal and is highly prized in the opal community from dealers
Category
21st Century and Contemporary American Cocktail Rings
Materials
Diamond, Opal, Platinum
Walton & Company Harlequin Black Opal Deco Ring
Located in New York, NY
Australian Black Opal- 23-14mm
Bezel set in etched platinum diamond deco ring
20 round old mine
Category
Antique Early 19th Century American Contemporary More Rings
Materials
Diamond, Opal, Platinum
Art Nouveau Era 18kt. Gold & Harlequin Black Opal Ring
Located in Santa Barbara, CA
An extraordinary and utterly unique ring featuring an enthralling, fiery and exotic black opal
Category
Antique Late 19th Century Arts and Crafts Cocktail Rings
Materials
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
Hemmerle Mandarin Garnets Cuff Bracelet In 18Kt Gold Platinum Diamonds And Opals
By Hemmerle
Located in Miami, FL
hundred six natural earth mined gemstones, such; Harlequin black opals, spessartite garnets and colorless
Category
21st Century and Contemporary German Modern Cuff Bracelets
Materials
Diamond, White Diamond, Garnet, Opal, Mandarin Garnet, Black Opal, Gold,...
French Important Black Opal Diamond and White Gold Ring
Located in Firenze, IT
This stunning and elegant ring centers on a round cabochon harlequin opal surrounded by 14 round
Category
Vintage 1970s French Retro Engagement Rings
Materials
Diamond, Opal, Black Opal, 18k Gold, White Gold
Retro 8.0 Australian Opal Rose Cut Diamond 18 Kt Ring
Located in Napoli, IT
cabochon cut natural harlequin opal of approx. 8.00 Ct (19.93 mm. x 16.48 mm.) – 32 rose cut diamonds
Category
Vintage 1940s European Retro Cluster Rings
Materials
Diamond, Opal, 18k Gold
Harlequin Black Opal Victorian Diamond Gold Ring, circa 1880
Located in New York, NY
color as in this black opal are called Harlequin, one of the rarest types of black opal and these were
Category
Antique 1880s Victorian Engagement Rings
Materials
Diamond, Opal, Gold, 14k Gold, Yellow Gold
Edwardian Harlequin Australian Black Opal Diamond 18 Karat Gold Ring
Located in New York, NY
features an Australian Harlequin black opal weighing 4.91 carats. This rare opal exhibits an incredible
Category
Vintage 1910s Edwardian Engagement Rings
Materials
Diamond, Opal, 18k Gold
Art Nouveau Black Opal Yellow Gold Stickpin
Located in New York, NY
period piece is set with a rare black opal showing a "Harlequin" color pattern with lots of red besides
Category
Antique Late 19th Century Art Nouveau More Jewelry
Materials
Opal, 14k Gold, Yellow Gold
Diamond Opal Ring, One-of-a-kind Mosaic Opal Bypass Ring, Handmade in Our Shop
By Five Star Jewelry
Located in Austin, TX
: G (excellent, near colorless)
Gemstone: Opal
Gemstone Color: Harlequin, blue pink green and a flash
Category
2010s American Contemporary Cocktail Rings
Materials
Diamond, Opal, Yellow Gold, 14k Gold
Harlequin Opal 1.90 Carat Diamond Vintage Drop Earrings
Located in Napoli, IT
work leading to the main Opal drop.
Hand crafted as invidual piece of solid 18 KT gold.
italian origin
Category
Vintage 1950s Italian Contemporary Dangle Earrings
Materials
Diamond, Opal, 18k Gold
Modern Art Deco Style 12.25 Carat Harlequin Opal and Diamond Pendant, Handmade
Located in Yorkshire, West Yorkshire
12.25ct. The opal is predominantly green and blue iridescent colours and orange in harlequin effect
Category
2010s Unknown Art Deco Pendant Necklaces
Materials
Black Diamond, Onyx, Opal, 18k Gold
Antique Victorian Opal Diamond Gold Ring
Located in ALTRINCHAM, GB
opal ring set with 3 harlequin opals, each separated by a row of three Old European cut diamonds in a
Category
Antique Late 19th Century British Late Victorian Three-Stone Rings
Materials
Opal, 18k Gold
Harlequin Boulder Opal, Diamond, 18K Gold & Platinum Necklace & Brooch
Located in MAIN BEACH, QLD
piece. The Harlequin pattern black boulder opal in this setting is fit for a queen, with over 12ct of
Category
Late 20th Century Australian Brooches
Materials
Diamond, Opal, 18k Gold, Platinum
12.40 Carat Natural Australian Opal 2.38 Carat Diamond Rare Edwardian Pendant
Located in Napoli, IT
platinum, tested
Hallmarks: none/worn
Gems: 1 oval cabochon cut natural harlequin opal of approx 12.40 Ct
Category
Antique Early 1900s Edwardian Pendant Necklaces
Materials
Diamond, Opal, 18k Gold, Platinum
Antique, Art Deco, 18 Carat White Gold, Black Opal and Diamond Ring
Located in Rochford, Essex
the most highly-valued ‘Harlequin’ opals. Showcasing this extraordinary central stone is a beautiful
Category
Early 20th Century British Cocktail Rings
Materials
Diamond, Opal, White Gold
Rare Art Deco G VVS 1.65 Carat Diamond 1.25 Carat Opal Platinum Trilogy Ring
Located in Napoli, IT
: platinum, tested
Hallmarks: none/worn
Gems: 1 oval cabochon cut natural Harlequin opal of approx 1.25 Ct
Category
Vintage 1920s Art Deco Three-Stone Rings
Materials
Diamond, Opal, Platinum
Antique 22.0 Carat Natural Opal Rose Cut Diamond Huge Ring
Located in Napoli, IT
cabochon cut natural Harlequin opal of 22.3 mm. x 18.2 mm. approx 22,00 Ct – 50 rose cut diamonds totalling
Category
Antique 1790s Georgian Dome Rings
Materials
Opal, 18k Gold
Antique Victorian, 18 Carat Yellow Gold, Opal and Diamond Cluster Ring
Located in Rochford, Essex
An incredible, 19th century, natural opal (harlequin coloured) and diamond ring, circa 1880. Set to
Category
Antique Late 19th Century British Cluster Rings
Materials
Diamond, Opal, 18k Gold, Yellow Gold
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Important Certified Mexican Fire Opal & Diamond Pendant, Excellent Play of Color
Located in Hong Kong, HK
Please check out the HD video! This is an important and substantial piece! 6 pieces of top gem quality opals make up this large pendant. Here is a natural Mexican fire opal and diamo...
Category
2010s Hong Kong Pendant Necklaces
Materials
Diamond, White Diamond, Opal, Fire Opal, Gold, 18k Gold, White Gold
$105,000 Sale Price
30% Off
Antique Bohemian Garnet And Silver Gilt Necklace Circa 1870's
Located in Firenze, IT
Victorian bohemian garnet necklace. This piece is set in silver gilt with pretty garnet flowers and smaller drop flowers. Circa 1870-80,
Measures: 42cm long and the central drop me...
Category
Antique Mid-19th Century British Victorian Drop Necklaces
Materials
Garnet, Silver, Gilt Metal
4.01ct Oval Cut Emerald Forget Me Knot ring with Emeralds in 18ct yellow gold
Located in Brisbane, AU
Glamorously bold and unabashedly seductive.
This showstopper ring features an intense green oval cut Emerald embraced North, South, East, West by gold talons and embraced by diamon...
Category
2010s Australian Artisan Solitaire Rings
Materials
Emerald, 18k Gold, Yellow Gold
$2,560 Sale Price
40% Off
Ombre Ultramarine Boulder Opal One of a Kind 22k Gold Ring, Lola Brooks, 2022
Located in Dallas, TX
One of a Kind Ring by jewelry maker Lola Brooks hand-fabricated in matte-finished 22k yellow gold featuring a breathtaking 5.84 carat ultramarine boulder opal with ombre coloration a...
Category
2010s American Artisan Fashion Rings
Materials
Opal, Gold, Yellow Gold, 22k Gold
2.77 Carat Opal Diamond Platinum Ring
Located in Miami, FL
Unique vintage ring crafted in platinum, featuring a stunning vivid and fiery 2.77 carat oval cut Natural Black Opal, set east-west and adorned with approximately 1 carat of round br...
Category
21st Century and Contemporary American More Rings
Materials
Diamond, Opal, Platinum
GRS Certified 5.14 Carat Natural Untreated Unheated Red Ruby Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
A STUNNING red ruby diamond ring!
GRS Certified 5.14 Carat Natural Untreated Unheated Red Ruby Diamond Ring
1 carats of white side diamonds.
Custom platinum and 18k yellow gold mo...
Category
2010s Unknown Contemporary Engagement Rings
Materials
Diamond, White Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
Natural 2.75 Ct Australian green and pink black boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 2.75 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself and cut ...
Category
2010s Australian Loose Gemstones
Materials
Opal, Black Opal
$3,850
W 0.33 in D 0.11 in L 0.58 in
Retro Reversible Sapphire Signet Ring 18 Karat Yellow Gold, Circa 1940
Located in London, GB
A retro reversible sapphire signet ring 18 karat yellow gold, circa 1940.
This unusual and ingeniously crafted ring comprises of a deep blue cabochon sapphire, engraved with a seal ...
Category
Mid-20th Century Unknown Retro Signet Rings
Materials
Sapphire, Gold, 18k Gold, Yellow Gold
Victorian 1870 Festoon Drop Necklace 18Kt Yellow Gold with 96.65 Cts Turquoises
Located in Miami, FL
Victorian 19th century Festoon drop Necklace with Turquoises.
A magnificent and exceptional piece of jewelry, most probably British created during the mid Victorian era (1840-1901),...
Category
Antique 1870s British Victorian Drop Necklaces
Materials
Diamond, Turquoise, Gold, 18k Gold, Yellow Gold
$12,950
W 2.04 in L 15 in
Diamond Platinum Tiara
Located in New York, NY
A magnificent tiara fit for a queen, impressively crafted with over 40 carats of high quality brilliant-cut round diamonds mounted in platinum.
Category
Vintage 1950s American More Jewelry
Materials
Diamond, Platinum
GIA Certified 9.00 Carats Natural Black Opal Men's Fashion Ring in Yellow Gold
Located in New York, NY
A dashing men's fashion ring, showcasing a 9.00 carats elongated cabochon gemstone certified by GIA as a natural black opal, bezel-set on 18K yellow gold, 11.60 mm in length and 23.1...
Category
21st Century and Contemporary American Contemporary Fashion Rings
Materials
Opal, Black Opal, 18k Gold, Yellow Gold
Platinum Band French Cut, Ruby (Approx. 1.30-Carats) Eternity Band
Located in New York, NY
This exquisite platinum eternity band is elegantly channel-set with a stunning array of French-cut rubies, approx. 1.30-carats. The band measures 2.40mm in width and is adorned with ...
Category
21st Century and Contemporary Unknown Art Deco Band Rings
Materials
Ruby, Platinum
Steven Battelle 2.2 Carats Ethiopian Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
A green, red, and blue, flashing 10 mm round cabochon Ethiopian opal from the famous Welo mine, is set in an artisan crafted 18K good bezel surrounded by ancient-inspired "bun and ja...
Category
21st Century and Contemporary Balinese Contemporary Pendant Necklaces
Materials
Opal, 18k Gold
Art Deco Style Emerald Diamond Wedding Ring for Her in 18k Solid Yellow Gold
By VR Jewels
Located in New York, NY
Art Deco Style Emerald Diamond Wedding Ring for Her in 18K Gold featuring natural emerald of 0.68 carats and diamonds of 0.31 carats. The gorgeous handcrafted ring goes with every st...
Category
21st Century and Contemporary American Art Deco Wedding Rings
Materials
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
$1,332 Sale Price / item
20% Off
Vintage Ring natural 4ct.Blue Cornflower Sapphire solid 18K Gold ØUS3.75/ 8.56gr
Located in SE
Ring for every day of unisex type in solid 18K Yellow Gold decorated with spectacular natural Blue Sapphire of lighter Blue / Cornflower color variety, emerald cut 10mm x 6 mm x 4.6 ...
Category
Vintage 1960s European Retro Cluster Rings
Materials
Diamond, Sapphire, 18k Gold
IGI 14K 4.47 Ct Natural Emerald&Diamonds Antique Engagement Ring
Located in Kaohsiung City, TW
*IGI 14K 4.47 Ct Natural Emerald&Diamonds Antique Engagement Ring*
An IGI-certified natural intense bluish-green emerald weighing 4.47 ct set on a 14K white gold luxury table design...
Category
21st Century and Contemporary Taiwanese Contemporary Engagement Rings
Materials
Diamond, Emerald, Gold, 14k Gold, White Gold
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Harlequin Opal For Sale on 1stDibs
Find the exact harlequin opal you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a harlequin opal from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. For this particular piece, are consistently popular carat weights. Finding an appealing harlequin opal — no matter the origin — is easy, but Alexandra Mor and Alexey Gabilo each produced a popular version that is worth a look. An oval cut version of this piece has appeal, but there are also cushion cut and old european cut versions for sale. There aren’t many items for men if you’re seeking a harlequin opal, as most of the options available are for women and unisex.
How Much is a Harlequin Opal?
The price for a harlequin opal starts at $2,774 and tops out at $45,000 with these rings, on average, selling for $10,250.
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).
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