Opal Blue Sapphire Diamond Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
It is hand set in 21.38 carats opal doublets, 2.54 carats blue sapphire and 2.0 carats of diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold, Sterling Silver
Vintage Opal Pendant Necklace 14 Karat Blue Sapphire and Opal Circa 1940's
Located in Brooklyn, NY
Vintage Gold Pendant Circa 1940 's Hand made Pendant Natural Stones 14k Yellow Gold approx 8.0 grams Center has two natural opals about 6x4 each. all around are small Natural Blue S...
Opal, Blue Sapphire, 14k Gold
Opal Blue Sapphire Diamond Ring
By Meghna Jewels
Located in Hoffman Estate, IL
It is hand set in 2.9 carats opal doublets, 1.61 carats aquamarine, 2.58 carats blue sapphire and 1.16 carats of diamonds.
Diamond, Opal, Blue Sapphire, Aquamarine, Gold, 18k Gold, Sterling Silver
$5,300 / item
Opal Blue Sapphire Fluid Diamond Ring
By Meghna Jewels
Located in Hoffman Estate, IL
Cast in 18-karat gold & sterling silver, this stunning ring is set with 17.41 carats blue sapphire, 1.25 carats opal and .56 carats of sparkling diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold, Sterling Silver
$5,420Sale Price|35% Off
Big Black Opal Silver Ring Deep Blue Natural Australian Opal Jewelry
Located in Berlin, DE
Large silver ring with natural bright Black Opal ring size - 8.5 US / 58 EU / Q½ UK / 18.5 mm weight of the Opal - 8.20 ct gemstone origin - Australia stone measurements - 13 х 16 mm...
Opal, Black Opal, Silver
$1,471Sale Price|35% Off
Black Opal Silver Ring Natural Inky Opal Blue Gemstone Christmas gift
Located in Berlin, DE
Silver ring with natural Black Opal gemstone origin - Australia opal measurements - 0.079 x 0.16 x 0,24 in / 2 x 4 x 6 mm opal weight - 0.6 carat ring size - 8 US ring weight - 2.95...
Opal, Black Opal, Silver
$1,626Sale Price|35% Off
Black Australian Opal Silver Ring Rd Blue Green Opal Solitare Ring
Located in Berlin, DE
With its mesmerizing play of colors, including green, red, blue, and yellow, this opal is truly captivating.
Opal, Black Opal, Silver, Sterling Silver
14K Yellow Gold Natural Solid Opal & Blue Sapphire Ring
Located in Laguna Beach, CA
A colorful and well-crafted 14K yellow gold opal ring, tested 14K and weighing 4.6 grams. Set with natural solid opal stones — an important distinction from doublet and triplet opals...
Opal, Blue Sapphire, Yellow Gold
$16,800 / item
Opal Aquamarine Blue Sapphire Diamond Cuff Bracelet
By Meghna Jewels
Located in Hoffman Estate, IL
It is hand set in 9.57 carats opal doublet, 24.82 carats blue sapphire, Aquamarine 24 and 5.17 carats of diamonds.
Diamond, Opal, Aquamarine, Blue Sapphire, Gold, 18k Gold, Sterling Silver
$2,903Sale Price|35% Off
Ink Opal Silver Pendant Blue Genuine Opal Fine Jewelry gift lotr style
Located in Berlin, DE
Silver pendant with natural Black Opal gemstone origin - Australia gem size is 0.12 x 0.43 x 1.26 in / 3 x 11 x 32 mm stone weight - 9.9 carats pendant lenght - 1.61 in / 41 mm pend...
Opal, Silver
Lagre Blue Black Opal Silver Ring 10 carat gift natural opal wedding mens ring
Located in Berlin, DE
Statement silver ring with natural Black Opal with deep blue opalescence size of the ring - 8 1/4 US, diameter 18.25 mm, N 18, 58 circumference ring weight - 12 grams stone measureme...
Opal, Black Opal, Silver
RUCHI Ethiopian Opal, Blue Sapphire & Diamond Blue Rhodium Chandelier Earrings
By Ruchi New York
Located in New York, NY
18K white gold with blue rhodium. Ethiopian Opal:12.22ct total weight.
Diamond, White Diamond, Opal, Sapphire, Blue Sapphire, Gold, 18k Gold, W...
$3,794Sale Price|35% Off
Blue Boulder Opal Silver Ring large 8.75 size gift opal anniversary wedding
Located in Berlin, DE
An unisex ring showcasing a natural Australian boulder opal of impressive scale, measuring 0.55 × 0.75 in (14 × 19 mm).
Opal, Silver
$4,258Sale Price|35% Off
Big Blue Boulder Opal Silver Ring Unisex Statement Natural Koroit Opal Jewelry
Located in Berlin, DE
Large beautiful nature Boulder - Koroit-type - Opal ring in sterling silver ring size - 9 US weight of the Opal 24 ct gemstone origin - Australia stone measurements - 18 х 20 mm ring...
Opal, Silver
Opal Diamond Blue Sapphire 18 Karat Gold Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
It is set in 14.11 carats opal, .29 carats blue sapphire and .82 carats of glittering diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold
Ladies Gold Ring with Big Opal and Blue Sapphires
Located in Berlin, DE
Pretty ladies gold ring with big opal and blue sapphires. Including certificate of authenticity.
Opal, Blue Sapphire, 14k Gold, Yellow Gold
$5,900 / item
Opal Diamond Blue Sapphire 18 Karat Gold Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
It is set in 12.72 carats opal, .58 carats blue sapphire and .40 carats of glittering diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold
Classic Blue Sapphire & Halo Diamond Engagement Ring 14K 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. ----------------------------------...
Blue Sapphire, Sapphire, Diamond, Yellow Gold, 14k Gold, Gold
$720Sale Price|40% Off
Rhodium Plated Sterling Silver Blue Topaz Opal Earrings, 14.4ct
Located in Nantucket, MA
A fabulous pair of faceted, pear-shaped blue topaz gemstones bordered in pave`-set diamonds and featuring one pear-shaped opal on the inside of the cluster.
Diamond, Opal, Blue Topaz, Sterling Silver, Rhodium
Ethiopian Opal Dangle Earrings Blue Sapphire 2.7 Carats Silver
Located in Bonita Springs, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 2 Ethiopian Opals = 0.99 Carats 24 Blue Sapphire = 1.42 Carats 72 White Topaz = 0.35 Carats Metal: Rho...
Opal, Sapphire, Blue Sapphire, Rhodium, Silver, Silver Plate, Sterling S...
$5,900 / item
Fire Opal Diamond Blue Sapphire 14 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
Cast in 14 karat gold. This beautiful ring is hand set in 8.11 carats fire opal, .42 carats sapphire and .53 carats of sparkling diamonds. This Fire Opal ring has been sold, but we...
Diamond, Opal, Blue Sapphire, Fire Opal, Gold, 14k Gold
Ethiopian Opal Dangle Earrings Blue Sapphire 2.7 Carats Silver
Located in Bonita Springs, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 2 Ethiopian Opals = 0.99 Carats 24 Blue Sapphire = 1.42 Carats 72 White Topaz = 0.35 Carats Metal: Rho...
Opal, Sapphire, Blue Sapphire, Rhodium, Silver, Silver Plate, Sterling S...
Blue-Green Australian Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A classic Australian opal weighing 5.17 carats takes center stage. It has great play of color as the opal shows bright and strong flashes of blue and green across the entire stone.
Diamond, Opal, Platinum
Ethiopian Opal Dangle Earrings Blue Sapphire 2.7 Carats Silver
Located in Bonita Springs, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 2 Ethiopian Opals = 0.99 Carats 24 Blue Sapphire = 1.42 Carats 72 White Topaz = 0.35 Carats Metal: Rho...
Opal, Sapphire, Blue Sapphire, Rhodium, Silver, Silver Plate, Sterling S...
$499Sale Price|23% Off
Ethiopian Opal Dangle Earrings Blue Sapphire 2.7 Carats Silver
Located in Bonita Springs, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 2 Ethiopian Opals = 0.99 Carats 24 Blue Sapphire = 1.42 Carats 72 White Topaz = 0.35 Carats Metal: Rho...
Opal, Sapphire, Blue Sapphire, Rhodium, Silver, Silver Plate, Sterling S...
Opal with Blue Sapphire Ring set in Silver Settings
Located in Dusit, 10
Opal with Blue Sapphire Ring set in Silver Settings Width: 1.9 cm Length: 0.7 cm Ring Size: 54 Total Weight: 4.4 grams *Please note that the silver setting is plated with rhodium...
Opal, Blue Sapphire, Silver
11.89 Carat Peruvian Pink Opal Blue Sapphire Pendant Necklace
By Brenda Smith
Located in Woodstock, GA
11.89 Carat Peruvian Pink Opal Blue Sapphire Pendant Necklace, In Stock. This pendant necklace features a high dome marquise cut pink opal that is 11.898 carats.
Opal, Blue Sapphire, Palladium
18K Gold, Australian Doublet Opal, Turquoise, Blue Sapphire & Diamond Bracelet
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful, modern style, Australian Doublet Opal, Turquoise, Blue Sapphires & Diamonds Modern Bracelet.
Diamond, Opal, Blue Sapphire, Turquoise, 18k Gold, White Gold
Contemporary Beatrice Barzaghi Blue Sapphire Fire Opal Gold Asymmetrical Ring
By Beatrice Barzaghi Milano
Located in Milan, IT
Please contact me for a custom model. BLUE SAPPHIRE: FIRE OPAL: (Taken from “The Crystal bible” written by Judy Hall.)
Opal, Blue Sapphire, Fire Opal, 18k Gold, Gold, Yellow Gold
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Midcentury Platinum Brooch with Opal, Diamonds, Emeralds, and Blue Sapphires
Located in New York, NY
The center features a 5.73 carat oval Opal. Two rows of graduating calibre cut Blue Sapphires weighing 6.75 carats, and one row of calibre cut Emeralds weighing 2.31 carats surround...
Diamond, Emerald, Opal, Blue Sapphire, Platinum
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Opal Blue Sapphire Diamond 18 Karat Gold Pendant Necklace
By Meghna Jewels
Located in Hoffman Estate, IL
Cast in 18 Karat gold, this beautiful pendant features 15.66 carats opal, .63 carat blue sapphire & .29 carats of sparkling diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold
Opal Blue Sapphire Diamond 18 Karat Gold Pendant Necklace
By Meghna Jewels
Located in Hoffman Estate, IL
It is hand set with 20.1 carats Opal, .80 carats blue sapphire & .09 carats of sparkling diamonds.
Diamond, Opal, Blue Sapphire, Gold, 18k Gold
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Opal Ring With London Blue Topaz 12.1 Carats Sterling Silver
Located in Bonita Springs, FL
Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin London Blue Topaz: 6.92 Carats Opal: 5.04 Carats Diamond: 0.18 Carats Metal: Sterling Silver Ring S...
Diamond, White Diamond, Opal, Topaz, Blue Topaz, Silver, Sterling Silver
Opal Ring With London Blue Topaz 6.34 Carats Sterling Silver
Located in Bonita Springs, FL
Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin London Blue Topaz: 3.14 Carats Opal: 2.58 Carats Diamond: 0.62 Carats Metal: Sterling Silver Ring S...
Diamond, White Diamond, Opal, Topaz, Blue Topaz, Silver, Sterling Silver
$499Sale Price|23% Off
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
$967Sale Price|35% Off
Opal necklace silver Blue Boulder Natural Australian Gemstone
Located in Berlin, DE
Matte finish silver pendant with natural Boulder "Koroit" Opal gemstone origin - Australia gemstone size - 0.32 x 0.67 х 1.18 in / 8 х 17 х 30 mm gemstone weight - 36.5 carat penda...
Opal, Silver
$3,484Sale Price|35% Off
Black Opal Yellow Gold Pendant Navy Blue Unisex Jewelry
Located in Berlin, DE
An unisex 18K yellow gold pendant with natural Black Opal opal origin - Australia opal measurements - 0.2 х 0.47 х 0.71 in / 5 х 12 х 18 mm opal weight - 8.40 carats pendant length...
Opal, Black Opal, Gold, 18k Gold, Yellow Gold
$77Sale Price|30% Off
Silver925 Natural Blue Topaz Synthetic Opal White Vintage Filigree Ring
Located in Bangkok, TH
*Pictures have been enlarged to show details** PRIMARY STONE(S) Stone: Natural Blue Topaz Color: Blue Shape: Round Size: 1.8 – 6.8 mm.
Opal, Topaz, Blue Topaz, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
$23,752Sale Price|20% Off
Ethiopian Opal & Blue Sapphire Necklace In 18K Yellow Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Beautiful Necklace features 84.25 carats of Gemstone. The Necklace are an ode to the luxurious yet classic beauty with sparkly gemstones and feminine hues. Their contemporary ...
Opal, Blue Sapphire, Yellow Gold
$19,358Sale Price|35% Off
Black opal Ivy earrings neon Blue opalescence Art nouveau style
By Alexey Gabilo
Located in Berlin, DE
Ivy collection — One of a kind Blue «Ink» Opal earrings in silver with grey patina gemstone origin - Australia opals measurements - 0.19 x 0.43 x 0.94 in / 5 x 11 x 24 mm earrings we...
Opal, Black Opal, Silver
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
Opal & Blue Sapphire Diamond Vintage Style Halo White Gold Pendant
By Unbranded
Located in Tysons, VA
The opal’s mesmerizing play of colors is beautifully complemented by the rich blue of the sapphires, creating a striking contrast that enhances the pendant’s beauty.
Diamond, Opal, Blue Sapphire, 14k Gold, White Gold
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Fire Opal Ring Art Deco Princess Bombe 14 Karat Gold Opals Blue Green
Located in New York, NY
The effect of the gorgeous natural opals with their wonderful blue and green fire in the wondrous princess design in 14 Karat yellow gold creates a magical jewel.
Opal, Gold, Yellow Gold, 14k Gold
Opal Blue Sapphire Vintage Style Floral Stud 14K Yellow Gold Earrings
By Unbranded
Located in Tysons, VA
With eight blue sapphires surrounding an opal center, these floral studs are feminine and elegant.
Opal, Blue Sapphire, 14k Gold, Yellow Gold
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Australian Solid Black Opal Diamond 18K Gold Pendant Blue Green
Located in SYDNEY, AU
The colour is bright and vivid, mixed with a charming blue and green. The opal is set in solid 18ct yellow gold frame with three diamonds.
Diamond, Opal, Black Opal, 18k Gold, Yellow Gold
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
$499Sale Price|50% Off
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
Natural Pink Opal & Blue Sapphire Dangle Earrings Rhodium Plated Silver
Located in Bonita Springs, FL
It comes with the appraisal by GIA GG/AJP Stones: Pink Opal, Blue Sapphire, White Topaz Pink Opal = 2.20 Carats Cut: Oval, Cabochon Blue Sapphire = 1.50 Carats Cut: Round White Topa...
Opal, Blue Sapphire, Topaz, Rhodium, Silver, Sterling Silver
$440Sale Price|20% Off
Natural Blue Topaz Wedding Band 14K Yellow Gold Ring Promise Gift for Couples
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. ------------------------------------...
Topaz, Blue Topaz, 14k Gold, Yellow Gold, Gold
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).