2.43ct Freeform Cabochon Gray Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 2.43 cts Measurements: 11.29 x 8.93 x 3.48 mm Shape: Freeform Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pa...
Opal
8.50 Carat Natural Loose Opal Cabochon From Ethiopia, Africa
Located in Peshawar, PK
Loose Opal Cabochon Weight: 8.50 Carats Dimension: 18.4 x 12.9 x 7.3 Mm Origin: Ethiopia Treatment: Non Certificate: On Customer Demand Opal is a mesmerizing gemstone celebrated f...
Opal
Opal Ethiopian 25.49Ct natural gemstone, Oval cabochon, Ethiopia, GFCO certified
By GRALJEWELRY
Located in Dublin, D
Natural Ethiopian Opal gemstone GFCO certified Gemstone Color: White Multicolor Gemstone Type: Opal Gemstone size: 26.44x20.65x11.38mm Cut Grade: Very Good Gemstone Shape: Pear Cabo...
Opal
Natural 9.35 Ct Carved Crystal Australian Opal Scarab mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 9.35 Ct Australian crystal opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself and se...
Crystal, Opal
Natural 5.89 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This amazing 5.89 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed t...
Opal, Black Opal
$310Sale Price|33% Off
Ethiopian Opal Pair total 5 ct 12 mm x 10 mm AAA+ Great Fire Create your Earring
Located in Viena, Viena
this pair of very fine Ethiopian opal cabochons can be a amazing jewelry, 2 opal with 12 x 10 mm, 4,5 mm deep, AAA+, oval, color white with a firework of red, green and blue hushes, ...
Opal
Natural 11.52 Ct Australian rainbow boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 11.52 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in Western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
Natural 9.47 Ct Australian crystal conch-shell opal carving mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 9.47 Ct Australian gem crystal opal, carved into a conch shell, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled wit...
Crystal, Opal
Natural 8.68 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 8.68 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2022. Sue processed...
Opal
Opal Stone 27.63 Carat Natural Ethiopian Pear Shape loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Natural 27.63 carat pear shape Ethiopian Opal loose gemstone, offered unmounted to a fine gem aficionado. Returns are accepted and paid by us within 7 days of delivery. We offer supr...
Opal
$27,920Sale Price|20% Off
51.39 Carat Free Form Ethiopian Opal Loose Gemstone - Merkaba Beverly Hills
By Merkaba
Located in Beverly Hills, CA
Natural 51.39 carat Ethiopian opal, offered loose and unmounted, featuring a vibrant play of color that shifts with movement and light. Cut in an organic free form shape, this except...
Opal, Platinum, Yellow Gold, White Gold, Rose Gold, 18k Gold
$23,920Sale Price|20% Off
36.67 Carat Oval Ethiopian Opal Loose Gemstone by Merkaba Jewelry Beverly Hills
By Merkaba
Located in Beverly Hills, CA
A rare 36.67 carat oval Ethiopian opal offered unmounted, alive with electric play of color. This gemstone shifts between fiery reds, lush greens, tranquil blues, and golden flashes,...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone
Located in Jaipur, RJ
4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone Gemstone : Opal Doublet Size : 16.5x11.5 MM Weight : 4.31 Carats Quantity - 1 Piece Shape - Fancy
Opal
$35,600Sale Price|20% Off
AGL Certified 8.11 Carat Australian Black Opal Vivid Blue Green N2-B4
Located in Chicago, IL
This pear-shape stunning Australian Black Opal displays a vivid Blue-Green Play-of-Color Phenomena in a unique Chaff and Harlequin Jigsaw pattern. This unique gem weighs 8.11ct and m...
Opal, Black Opal
25.67 Carat Oval Ethiopian Opal Loose Gemstone Unmounted Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
Offered loose and unmounted by Merkaba Jewelry Beverly Hills, this exceptional Ethiopian opal weighs 25.67 carats and is cut in a classic oval shape that highlights its remarkable pl...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
27.42-Carat Oval Ethiopian Opal Loose Gemstone by Merkaba Jewelry Beverly Hills
By Merkaba
Located in Beverly Hills, CA
A remarkable 27.42-carat natural Ethiopian Opal, expertly cut in an elegant oval shape and offered loose and unmounted for the serious gem collector. Celebrated for its luminous pres...
Opal, Platinum, Yellow Gold, White Gold, Rose Gold, 18k Gold
29.98 Carat Round Ethiopian Opal Loose Gemstone - Merkaba Jewelry Beverly Hills
By Merkaba
Located in Beverly Hills, CA
Exceptional 29.98 carat round Ethiopian opal, offered loose and unmounted, prized for its vivid play of color and strong presence. This natural opal displays lively flashes across th...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
$342Sale Price|20% Off
Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making
Located in Suwanee, GA
Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making. Free Domestic USPS First Class Shipping! Free Gift Bag/Box with every order! Every Opal piece is Unique. W...
Opal
4.65 Carats Australian Opal Pair Royal Green Flash with blue play of color Gem
Located in Jaipur, RJ
4.65 Carats Australian Opal Pair Royal Green Flash with blue play of color Gem Gemstone : Opal Doublet Size : 10.5x9 MM Weight : 4.65 Carats Quantity - 2 Piece Shape - Fancy
Opal
22.17ct Pear Ethiopian Opal Loose Gemstone Merkaba Jewelry Beverly Hills
By Merkaba
Located in Beverly Hills, CA
Offered loose and unmounted by Merkaba Jewelry Beverly Hills, this exceptional Ethiopian opal weighs 22.17 carats and is cut in an elegant pear shape that emphasizes its dramatic pla...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
10.20 Carat Ethiopian Black Opal Loose Gemstone Rectangular Oval by Merkaba
By Merkaba
Located in Beverly Hills, CA
Offered loose for collectors and bespoke fine jewelry, this 10.20 carat Ethiopian black opal displays a dramatic, shifting play of color with lively flashes of red, green, blue, and ...
Opal, Black Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
14.00 Carat Natural Loose Opal Cabochon From Ethiopia
Located in Peshawar, PK
Loose Opal Cabochon Weight: 14.00 Carats Dimension: 17.5 x 15.6 x 11 Mm Origin: Ethiopia Treatment: Non Certificate: On Customer Demand Opal is a mesmerizing gemstone celebra...
Opal
0.84ct Freeform Cabochon Grey Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 0.84 cts Measurements: 8.74 x 5.18 x 3.17 mm Shape: Freeform Cabochon Cutting Style Crown: Cutting Style Pavilion: Transparen...
Opal
$256Sale Price|20% Off
Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design
Located in Suwanee, GA
Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design. Free Domestic USPS First Class Shipping! Free Beautiful Gift Bag with every order! Every Opal piece...
Opal, Black Opal
Natural 23.20 Ct large teardrop boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 23.20 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
1.54ct Oval Cabochon White Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 1.54 cts Measurements: 11.04 x 8.35 x 2.53 mm Shape: Oval Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pavili...
Opal
Natural Australian Opal Onyx Lady Cameo Hand Carved Loose Gemstone
Located in Jaipur, Rajasthan
Elegant Opal Cameo on Black Onyx This striking piece features a beautifully hand-carved Australian opal cameo set against a polished black onyx background. The opal shimmers with vi...
Onyx, Opal
Rare 19.17 Carat Ethiopian Opal Rectangular Oval Loose Gem - Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
A Rare Ethiopian Opal for Collectors Offered unmounted, this rare 19.17 carat Ethiopian Opal is cut in an elegant rectangular oval shape and displays a vivid, shifting play of color....
Opal, Platinum, Yellow Gold, Rose Gold, 18k Gold, Gold
3.34ct Oval Cabochon White Welo Opal from Ethiopia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 3.34 cts Measurements: 11.91 x 9.92 x 6.58 mm mm Shape: Oval Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pav...
Opal
4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone
Located in Jaipur, RJ
4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone Gemstone : Opal Doublet Size : 18.5X10 MM Weight : 4.15 Carats Quantity - 1 Piece Shape - Fancy
Opal
16.94 Carat Round Ethiopian Opal Loose Gemstone Unmounted Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
Offered loose and unmounted by Merkaba Jewelry Beverly Hills, this exceptional Ethiopian opal weighs 16.94 carats and is cut in a classic round shape that emphasizes symmetry, brilli...
Opal, Gold, 18k Gold, Rose Gold, Yellow Gold, Platinum
Natural 12.54 Ct Australian heart boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 12.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
38.92-Carat Marquise Ethiopian Opal – A Rare Collectible Gem by Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
38.92-Carat Marquise Ethiopian Opal – A Rare Masterpiece by Merkaba Jewelry Beverly Hills. A Rare Masterpiece of Nature The Ethiopian highlands have gifted the world some of the mos...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
10.96 Carat Ethiopian Opal Oval Loose Gemstone Play of Color by Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
Offered unmounted for collectors and bespoke fine jewelry, this 10.96 carat Ethiopian opal is a luminous oval cut gemstone celebrated for its vivid, shifting play of color. Curated b...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
3.49ct Freeform Cabochon White Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 3.49 cts Measurements: 13.67 x 10.35 x 4.02 mm Shape: Freeform Cabochon Cutting Style Crown: Cutting Style Pavilion: Transpar...
Opal
Opal Ethiopian 13.09Ct natural gemstone, Ethiopia, GFCO certified
By GRALJEWELRY
Located in Dublin, D
Natural Ethiopian Opal gemstone GFCO certified Gemstone Color: White Multicolor Gemstone Type: Opal Gemstone size: 20.07x17.39x8.46mm Cut Grade: Very Good Gemstone Shape: Oval Caboc...
Opal
$899
8.08 Carat Opal
Located in Bangkok, TH
This piece is a massive and stunning, 8.08 Carat Opal, in a mesmerising, and unique shape, with a grey and red hue. Opals are a unique and captivating type of gemstone known for thei...
Opal, Black Opal, Platinum
15.54 Carat Oval Opal GIA Certified
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 2203893790 Shape: Oval Cutting Style: Double Cabochon Cutting Style: Crown: Cutting Style:...
Opal
Opal Ethiopian 16.94Ct natural gemstone, Oval cabochon, , Certificate GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Ethiopian Opal gemstone GFCO laboratory certified Gemstone Color: Black Multicolor Gemstone Type: Opal Gemstone size: 27.27x17.09x8.44mm Cut Grade: Very Good Gemstone Shape:...
Opal
0.54ct Oval Cabochon Gray Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 0.54 cts Measurements: 8.20 x 6.32 x 1.53 mm Shape: Oval Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pavilio...
Opal
3.18ct Freeform Cabochon White Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 3.18 cts Measurements: 18.75 x 8.73 x 2.77 mm Shape: Freeform Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pa...
Opal
Enchanting 2.65ct Natural Black Opal Oval Cabochon
Located in רמת גן, IL
This captivating collector's gemstone features a 2.65ct natural opal, masterfully finished into a classic oval cabochon that showcases a dramatic and mysterious aesthetic. Verified b...
Opal
2ct Oval Cabochon Gray Opal from Australia
Located in Toronto, Ontario
Description: Gem Type: Opal Number of Stones: 1 Weight: 2 cts Measurements: 11.65 x 8.02 x 3.07 mm Shape: Oval Cutting Style: Cabochon Cutting Style Crown: Cutting Style Pavilion:...
Opal
Massive 56 Carat Australian Black Opal: Rare Lightning Ridge Gemstone Treasure
Located in Hung Hom, HK
An extraordinary 56-carat Australian Black Opal, sourced from the renowned Lightning Ridge. This massive and rare gemstone is a true collector's treasure, celebrated for its mesmeriz...
Opal, Black Opal
Natural 12.61 Ct Australian green-blue black boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This rare 12.61 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cu...
Opal, Black Opal
$719Sale Price|20% Off
Natural Mexican Fire Opal 5.45 Carat Emerald Cut Loose Gemstone Play-of-Color
Located in Bonita Springs, FL
Ignite your collection with the captivating brilliance of this 5.45 carat Natural Mexican Fire Opal, expertly cut into a emerald cut to maximize its radiance. Sourced from Mexico, th...
Emerald, Opal, Fire Opal
5.54ct Freeform Tablet Semi Black Opal GIA Certified Australia
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 2211817189 Shape: Freeform Tablet Cutting Style: Cutting Style: Crown: Cutting Style: P...
Opal, Black Opal
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 ...
Opal, Black Opal
Natural 20.39 Ct Australian kite-shaped boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This unique 20.39 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2020. Sue processed the rough opal herself and cut in...
Opal, Black Opal
1.42ct Oval Cabochon Black Opal GIA Certified
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 6227841105 Shape: Oval Cutting Style: Cabochon Cutting Style: Crown: Cutting Style: Pavil...
Opal, Black Opal
Natural 11.94 Ct Australian Crystal Nautilus opal carving mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 11.94 Ct Australian gem crystal opal, carved into a nautilus shell, is a truly exceptional addition to any collection, mined by Sue...
Crystal, Opal
72.30 Carat Oval Shape Natural Opal Loose Gemstone
Located in Trumbull, CT
This 72.30 carat oval shape natural opal loose gemstone has phenomenal display of fire. This huge gemstone can be made into a stunning piece of jewelry according to your choice. Size...
Opal
3.65 Carats Australian Opal Pair Royal Green Flash with blue play of color Gem
Located in Jaipur, RJ
3.65 Carats Australian Opal Pair Royal Green Flash with blue play of color Gem Gemstone : Opal Doublet Size : 14x6.5 MM Weight : 3.65 Carats Quantity - 2 Piece Shape - Fancy
Opal
$719Sale Price|20% Off
Natural Mexican Fire Opal 5.45 Carat Emerald Cut Loose Gemstone Play-of-Color
Located in Bonita Springs, FL
Ignite your collection with the captivating brilliance of this 5.45 carat Natural Mexican Fire Opal, expertly cut into a emerald cut to maximize its radiance. Sourced from Mexico, th...
Emerald, Opal, Fire Opal
Natural 4.38 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.38 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed the r...
Opal
Natural 13.54 Ct carved Boulder Opal butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 13.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough boulder opal herself...
Opal
28.57 Carat Black Australian Opal
Located in Bangkok, TH
This piece is a massive and stunning, 28.57 Carat Black Opal, in a mesmerising, trillion-cut shape. Opals are a unique and captivating type of gemstone known for their play-of-color,...
Opal, Black Opal, Platinum
13.88 Carat Marquise Ethiopian Opal Loose Gemstone, Merkaba Beverly Hills
By Merkaba
Located in Beverly Hills, CA
A natural 13.88-carat marquise Ethiopian opal loose gemstone, offered unmounted for collectors and bespoke fine jewelry. This marquise shape gives the opal an elegant, elongated pres...
Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
Australian Loose Solid Oval Opal of 5.00ct (17mm x 11mm). Lightning Ridge.
Located in MELBOURNE, AU
TO U.S.A BUYERS: DON’T SWEAT ABOUT 15% TRUMP’S TARIFF - WE COVER IT BY GIVING YOU 15% DISCOUNT! This Australian Loose Solid Opal is of impressive 5.00ct (17mm x 11mm) from Lightn...
Opal
10 Carat Australian Boulder Opal Freeform Cabochon
Located in New York, NY
This incandescent 10 ct. Boulder Opal freeform cabochon features a captivating play of color across its polished surface with electrifying flashes of green, violet, aqua, and gold sh...
Opal
On 1stDibs, find a collection of opals and other loose gemstones to help you create your own custom jewelry.
Unless you're a connoisseur looking to acquire a unique investment, you're probably looking for loose gemstones because you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.
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.
Find a range of opals and other loose gemstones on 1stDibs.