Opal Gold Ring Genuine Australian special person gift opal wedding anniversary
By Alexey Gabilo
Located in Berlin, DE
This ring has a majestic Boulder Opal in a sublime White Gold body that has a medieval structured design.
Opal, Gold, 14k Gold, White Gold
Gold Opal ring Statement Valentine's Day gift Engagement ring
By Alexey Gabilo
Located in Berlin, DE
Present this incredible boulder opal ring to that special someone in mind.
Opal, Gold, 14k Gold
Opal & Diamond Pendant Necklace
Located in New York, NY
Opal & Diamond Pendant Necklace. A necklace featuring a large boulder opal pendant. surrounded with old mine & rose cut diamonds.
Diamond, Opal, Platinum
$3,675Sale Price|25% Off
Australian Opal Hand-Forged Oxidized Silver and 22 Karat Gold Dangle Earrings
By Vicki Orr
Located in Naples, FL
Oxidized sterling silver and 22k yellow gold hand-fabricated dangle earrings featuring amazing green blue Australian Boulder Opals. Unique, beautiful and one-of-a-kind artisan earrings.
Opal, 22k Gold, Yellow Gold, Silver, Sterling Silver, Gold
Opal Gold Ring Gemstone Unisex Engagement Band
By Alexey Gabilo
Located in Berlin, DE
This ring has a majestic Boulder Opal in a sublime White Gold body that has a medieval structured design.
Opal, Gold, 14k Gold, White Gold
Large Opal Necklace silver Blue Genuine Australian Gemstome LOTR Style Pendant
Located in Berlin, DE
Silver pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.16 x 3,94 x 1,57 in / 4 x 15 x 40 mm stone weight - 22.70 carat pendant lenght - 51 mm pendant...
Opal, Silver
Big Opal Ring Gold Engagement Ring Large Wedding Band
By Alexey Gabilo
Located in Berlin, DE
Natural boulder Opal 14K yellow gold ring Opal origin - Australia opal measurements - 0.16 х 0.59 х 1.18 in / 4 х 15 х 30 mm gemstone weight - 16.50 carats ring weight - 10.44 grams...
Opal, Gold, 14k Gold, Yellow Gold
$4,320Sale Price|40% Off
Michael Kneebone Opal Topaz Aquamarine Sapphire Diamond Confetti Pendant
By Michael Kneebone
Located in Austin, TX
"Boulder opal" refers to opal that has formed within the ironstone matrix.
Aquamarine, White Diamond, Opal, Blue Sapphire, Topaz, Diamond, Sapphire...
Big Opal Boulder Australian Fine gemstone Freeform 47 ct Neon Blue SSEF cert
Located in Berlin, DE
Boulder Opal from Queensland, Australia is one of the rarest gemstones on earth.
Opal
Opal Vanity case Stone Wood Box wife birthday gift special person wedding gifts
Located in Berlin, DE
An unique 100% handmade Boulder Opal Gemstone in wooden box size of the stone vanity case 168 x 163 x 44 mm weight of the stone box - 1660 gr total weight with wooden case - 2500 gr
Opal, Brass
$2,720Sale Price|20% Off
Pink Tourmaline, Opal and Diamond 18 Karat Gold Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Russian Pink Tourmaline, Australian Boulder Opal and accent white Diamond (0.18 total carats, G-H, SI1) 18k yellow gold dangle earrings.
Diamond, White Diamond, Multi-gemstone, Opal, Tourmaline, Gold, Yellow Gold
Opal Vanity case Stone Wood Box wife birthday gift special person wedding gifts
Located in Berlin, DE
An unique 100% handmade Boulder Opal Gemstone in wooden box size of the stone vanity case 168 x 163 x 44 mm weight of the stone box - 1660 gr total weight with wooden case - 2500 gr
Opal, Brass
18k Gold Opal and Peridot Drop Earrings
By Angelina Fine Jewelry
Located in Amsterdam, NH
A lovely handmade and one-of-a-kind pair of asymmetrical 18k gold earrings with boulder opals and lush green peridots suspended from 18k gold flowers.
Opal, Peridot, 18k Gold
Vintage Platinum Large Boulder Nice Play of Color Opal w/ Diamond Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Boulder Opal - Oval Cabochon Cut - Prong Set - Brown Color w/ Violet & Green Play of Color - 17.4x14.8mm - 9ct (exact) (26) Natural Genuine Diam...
Diamond, Opal, Platinum
Opal pendant charm in 22 Karat gold
By Pamela Farland
Located in New York, NY
This lovely pendant features Australian boulder opals set in rich 22-karat gold. The chains shown are for display purposes only.
Opal, Gold, 22k Gold, Yellow Gold
Opal necklace gold Unisex pendant Lord of the Rings style gift special person
By Alexey Gabilo
Located in Berlin, DE
One of a kind piece from a Vrubel collection by Alexey Gabilo - gold necklace with big Boulder Opal opal origin - Australia opal measurements - 0.28 x 0.98 x 1.26 in / 7 х 25 х 32 m...
Opal, Gold, 18k Gold, Yellow Gold
18KT Gold Opal and Emerald Mosaic Drop Earrings With Diamonds
By Artisan NYC
Located in New York, NY
Each piece is anchored by a freeform 3.41ct blue boulder opal, displaying deep oceanic flashes of turquoise and indigo.
Emerald, Diamond, Opal, Gold
1ct, 11x7mm Australian Opal Ring w Natural Diamonds in 14K White and Yellow Gold
Located in Columbus, OH
This elegant ring features a captivating 1.13ct fancy-shaped Boulder Opal from Australia, showcasing vibrant natural color play within an 11x7mm head size.
Diamond, Opal, Gold, 14k Gold, White Gold, Yellow Gold
Australian Opal Starfish Pendant with Emerald & 14k Gold
By Jen Proudman Jewelry
Located in New York, NY
The gold ring bail can accommodate a chain, cord or beaded necklace up to 6mm in width. This Australian Boulder Opal is mined from a family opal min in Queensland, Australia.
Opal, Emerald, 14k Gold
Ancient Coin, Turquoise, Opal & Tourmaline 18 Karat Gold Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Sleeping Beauty Turquoise, Ancient Roman bronze coin, Russian Pink and Watermelon Tourmaline, Citrine, and Australian Boulder Opal 18k yellow gold asymmetrical dangle earrings.
Citrine, Multi-gemstone, Opal, Tourmaline, Turquoise, Turquoise Matrix, ...
$2,360Sale Price|20% Off
Opal, Agate and Peridot Multi-Gemstone 22 Karat Gold Dangle Earrings
By Vicki Orr
Located in Naples, FL
Three tier, hand forged 22k yellow gold dangle earrings featuring Ethiopian Opal (5.5 ct), Smoky Quartz (5.4 ct), Australian Boulder Opal (8.3 ct), Peridot (7.2 ct), Mexican Fire Opa...
Agate, Multi-gemstone, Opal, Peridot, Quartz, Gold, 22k Gold, Yellow Gold
Opal Gold Pendant Boulder Australian Nature Inspired Necklace
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.24 х 0.71 х 1.38 in / 6 х 18 х 35 mm stone weight - 13.65 carats pendant length - 1.73...
Opal, Gold, 14k Gold, Yellow Gold
Handcrafted 18KT White Gold Opal Ring with Diamond and Sapphire Halo
By Artisan NYC
Located in New York, NY
This striking statement ring showcases a 2.73ct natural blue boulder opal, celebrated for its deep, oceanic hues and irregular, organic silhouette.
Diamond, Opal, Sapphire, White Gold
Estate Opal Pearl Tsavorite Amethyst Two-Tone Gold Cuff Bracelet
Located in Beverly Hills, CA
This modern designed cuff bracelet features a luscious boulder opal in the center with great play of color.
Amethyst, Opal, Pearl, Tsavorite, 18k Gold, 22k Gold, Rose Gold, Yellow ...
Late Victorian Opal Pearl 14 Karat Yellow Gold Antique Laurel Stickpin
Located in Philadelphia, PA
Centering a 6.5 mm round boulder opal cabochon - white with spectral play-of-color Displaying brown host matrix on edges of cabochon - bezel set With a highly rendered laurel wreath ...
Opal, Pearl, Gold, 14k Gold, Yellow Gold
Ancient Roman Coin, Opal & Turquoise 22 Karat Gold Asymmetrical Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Hand-wrapped 22k yellow gold asymmetrical dangle earrings featuring Kingman Spiderweb Turquoise, Ancient Roman bronze coins, Moonstone, raw Paraiba Tourmaline and Australian Boulder ...
Moonstone, Multi-gemstone, Opal, Tourmaline, Turquoise, Turquoise Matrix...
14k Gold Australian Opal Necklace with Columbian Emeralds & Diamonds
By Jen Proudman Jewelry
Located in New York, NY
Opal Necklace Australian Boulder Opal, Colombian Emeralds, Diamonds & 14k Gold 16” 14k gold paperclip chain with Australian Opal center pendant.
Diamond, Emerald, Opal, 14k Gold
Ancient Roman Coin, Opal & Aquamarine 22 Karat Gold Asymmetrical Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Hand-wrapped 22k yellow gold asymmetrical shoulder-duster dangle earrings featuring a variety of Australian Boulder Opals, blue and green Aquamarine, and two ancient Roman bronze coi...
Aquamarine, Multi-gemstone, Opal, Gold, 22k Gold, Yellow Gold, Bronze
Australian Opal Heart Necklace with Emerald, 14k Gold Paperclip Chain
By Jen Proudman Jewelry
Located in New York, NY
So you can wear it as choker length, which is great for stacking - all the way to 16”. This Australian Boulder Opal is mined from a family opal min in Queensland, Australia.
Emerald, Opal, 14k Gold
Australian Opal Heart Necklace with Diamond and 14k Gold Paperclip Chain
By Jen Proudman Jewelry
Located in New York, NY
So you can wear it as choker length, which is great for stacking - all the way to 16”. This Australian Boulder Opal is mined from a family opal min in Queensland, Australia.
Diamond, Opal, 14k Gold
Intarsia Opal Malachite & Black Onyx with Diamond 14K Gold Pendant Necklace
Located in Miami, FL
About the Stones This exceptional intarsia features natural boulder opal displaying vibrant flashes of color characteristic of Australian stones, complemented by rich malachite showi...
Diamond, Onyx, Opal, Gold, 14k Gold, Yellow Gold
18kt Yellow Gold Australian Opal & Diamond Pendant
Located in San Francisco, CA
This absolutely stunning piece features a natural wavy Australian boulder opal that displays a breathtaking rainbow of colors including pinks, greens, blues, oranges and yellows, tha...
Diamond, Opal, 18k Gold, Yellow Gold
$265,000
Opal
Located in New York, NY
There are several names given to opal (Black Opal, Boulder Opal, Fire opal, etc.).
Opal
$2,360Sale Price|20% Off
Sunstone, Lapis and Topaz Multi-Gemstone 22 Karat Gold Dangle Earrings
By Vicki Orr
Located in Naples, FL
Three tier, hand forged 22k yellow gold dangle earrings featuring Sunstone (4.3 ct), Lapis Lazuli (7.9 ct), Turquoise Mountain Turquoise (9.6 ct), London Blue Topaz (7.7 ct), Waterme...
Lapis Lazuli, Opal, Topaz, Tourmaline, Turquoise, Turquoise Matrix, Mult...
Opal & Diamond-Ring aus Mixed Gold
By CF goldundsilberschmiede
Located in Loßburg, DE
Selected piece of jewelry for ARTISTAR MJW 2023 Details: yellow gold 900/- yellow gold 585/- red gold 585/- Boulder Opal 5 colored Brilliants in total 0,4ct Designer: Christine...
Diamond, Blue Diamond, Yellow Diamond, Opal, Other, Gold, 14k Gold, 22k ...
Ocean Blue Opal Ring Gold Australian Blue Opal Statement Ring
By Alexey Gabilo
Located in Berlin, DE
Large Boulder Opal 18K white gold and blackened silver ring Opal origin - Australia stone measurements - 0.51 х 1.06 in / 13 х 27 mm ring weight - 40 grams ring size - 8.5 US We shi...
Opal, 18k Gold, White Gold, Silver, Sterling Silver, Gold
18k Gold Paisley Earrings with Cabochon Chrysoprase Drops
By Angelina Fine Jewelry
Located in Amsterdam, NH
Worn here with Australian boulder opal necklace.
Chrysophrase, 18k Gold
1.10 Carat Natural Australian Black Opal and Diamond Pendant Made in Platinum
Located in Tokyo, JP
A beautiful pendant featuring a 1.10 Carat, Natural, Australian Boulder Opal and 0.32 Carats of Diamond Accents set in Platinum.
Diamond, Opal, Black Opal, Platinum
Opal Gold Earrings Polychrome Cosmic Purple Australian opal
Located in Berlin, DE
18K yellow gold stud earrings with natural Boulder Opal opal origin - Australia opal measurements - 0.12 х 0.28 х 0.35 in / 3 х 7 х 9 mm stone weight - 3.20 carats earrings weight -...
Opal, Gold, 18k Gold, Yellow Gold
Dune Opal Ring Gold Precious Opal Gemstone Wedding Gift Unisex Jewelry Rainbow
By Alexey Gabilo
Located in Berlin, DE
"Dune" - 14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 14 carats stone measurements - 0.16 х 0.55 х 0.87 in / 4 х 14 х 22 mm ring weight - 7.45...
Opal, Crystal, 14k Gold, Yellow Gold, Gold
Modernist Opal Necklace by Paul Binder
By Paul Binder
Located in Litchfield, CT
This stunning modernist necklace by Paul Binder of Zurich, is set with a sublime Australian boulder opal surrounded by brilliant white diamonds.
Diamond, Opal, 18k Gold, White Gold
Elegant Australian Black Opal Diamond Drop Earrings in 18K Yellow Gold
By The Wind Opal
Located in Suwanee, GA
Every piece of opal is unique in its own ways and patterns. We only use high-quality Natural Opals (NO synthetics or imitations) for our jewelry. ---------------------------------...
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold, Gold
Big Opal Silver Ring Bicolor Blue Yellow Australian Unisex Jewelry
Located in Berlin, DE
Silver ring with natural Boulder Opal Opal origin - Australia Opal measurements - 0.2 x 0.59 x 0.87 in / 5 х 15 х 22 mm ring size - 8.75 US ring weight - 12.5 grams We ship our j...
Opal, Silver, Sterling Silver
Opal Yellow Gold Pendant Multicolor Australian Stone
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold necklace with natural boulder Opal opal origin - Australia opal measurements - 0.16 х 0.55 х 1.34 in / 4 х 14 х 34 mm opal weight - 32 carats pendant weight - 10.79 ...
Opal, Gold, 14k Gold, Yellow Gold
Opal, Gold Pearl, Onyx & Diamond Chandelier Earrings, 18K Gold, Austy Lee
By Austy Lee
Located in Hong Kong, HK
This pair of earrings is made of Australian Boulder Opals, cultured South Sea Gold Pearls, Onxy, Ethiopian Opals and White Diamonds, set on blue color-plated 18K White Gold.
Diamond, White Diamond, Onyx, Opal, Pearl, Cultured Pearl, South Sea Pea...
Blue Sapphire, Opal & Diamond Bracelet, 18K Gold, Austy Lee
By Austy Lee
Located in Hong Kong, HK
This unique and stylish bracelet features Natural Sri-lankan Blue Sapphires, Australian Boulder Opals and Diamonds, set on blue-color plated 18K White Gold.
Diamond, Opal, Blue Sapphire, 18k Gold, White Gold, Rhodium
Large Opal Silver Ring Multicolor Magic Forest Natural Australian
By Alexey Gabilo
Located in Berlin, DE
Big silver ring with natural Boulder Opal opal origin - Australia opal measurements - 0.12 x 0.55 x 0.94 in / 3 х 14 х 24 mm stone weight - 9.85 carats ring size - 9 US ring weight ...
Opal, Silver, Sterling Silver
Opal Silver Ring Triangle Multicolor Neon Sea Green Natural Australian Gemstone
Located in Berlin, DE
Large matte finish silver ring with natural Boulder Opal opal origin - Australia ring weight - 11.5 grams ring size - 10 1/4 US / 62.5 EU opal measurements - 0.28 х 0.55 x 0.94 in /...
Opal, Silver
Big Opal Silver Ring gift Triangle Multicolor Neon Sea Green Natural Australian
Located in Berlin, DE
Large matte finish 925 solid sterling silver ring with natural Boulder Opal opal origin - Australia ring weight - 11.5 grams ring size - 10 1/4 US / 62.5 EU opal measurements - 0.28...
Opal, Silver
14.00 Carat Natural Loose Opal Cabochon From Ethiopia
Located in Peshawar, PK
Found primarily in Australia, Ethiopia, and Mexico, opals come in a variety of types, including black opals (the most valuable), white opals, fire opals, and boulder opals.
Opal
8.50 Carat Natural Loose Opal Cabochon From Ethiopia, Africa
Located in Peshawar, PK
Found primarily in Australia, Ethiopia, and Mexico, opals come in a variety of types, including black opals (the most valuable), white opals, fire opals, and boulder opals.
Opal
Engagement Opal Ring Gold Unisex Tree of Fantasy Forest Lotr Style
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 14 carats stone measurements - 0.16 х 0.55 х 0.87 in / 4 х 14 х 22 mm ring weight - 7.45 grams ri...
Crystal, Opal, Gold, 14k Gold, Yellow Gold
Stunning Dark Crystal Opal Diamond Hola Stud Earrings 14k Yellow Gold
Located in Suwanee, GA
Pear Shaped Australian Boulder Opal Stud Earrings 14K Yellow Gold. Free Domestic USPS First Class Shipping!
Opal, Diamond, Gold, 14k Gold, Yellow Gold
Rye Australian Opal Unique Engagement Ring Gold Unisex Artisan Fine Jewelry Art
By Alexey Gabilo
Located in Berlin, DE
Nature inspred ring from signature Herbarium collection with an amazing large Boulder Opal in 14K yellow gold, one of a kind piece opal origin - Australia opal measurements - 0.2 х ...
Opal, Crystal, 14k Gold, Yellow Gold, Gold
Peter Suchy 7.97 Carat Opal Sapphire Garnet White Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Truly a one of a kind natural green flash boulder opal pendant necklace with natural sapphires and garnet accents.
Garnet, Opal, Sapphire, Gold, 18k Gold, White Gold
Aquamarine Turquoise Sunburst Earrings in 18kt Gold by Lauren Harper
By Lauren Harper
Located in Winnetka, IL
These earrings can also be special ordered in boulder opals and aquamarines.
Aquamarine, Turquoise, Gold, 18k Gold
Stephen DWECK Sterling Silver Floral carved ring - New, Never Worn 1990s
By Stephen Dweck
Located in Wallkill, NY
He collects stones from all over the world tourmalines from Brazil, boulder opals from Australia, ammonites from Morocco, and pearls from the South Sea.
Sterling Silver
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.
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).