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18k Gold GIA 19.49ct Oval Gray Opal Pendant w/ Diamond Sapphire Emerald Spray
Located in Montclair, NJ
solid 18k yellow and white gold. The pendant features a gorgeous, GIA certified, gray opal that is 100
Category

Late 20th Century Unknown Pendant Necklaces

Materials

Diamond, Emerald, Opal, Sapphire, 14k Gold, 18k Gold, White Gold, Yellow...

GIA Certified 3.96 Carat Oval Shape Natural Opal
Located in LA, CA
GIA Certified 3.96 carats Oval Shape Natural Opal 16.16 x 11.08 x 3.95 mm GIA #2225851161 3.96
Category

2010s Loose Gemstones

Materials

Opal

GIA Certified 2.96 Carat Oval Shape Natural Opal
Located in LA, CA
GIA Certified 2.96 carats Oval Shape Natural Opal 14.79 x 12.33 x 2.41 mm GIA # 2225851168
Category

21st Century and Contemporary Loose Gemstones

Materials

Opal

GIA Certified Freeform 2.68 Carat Australian Black Fire Opal
Located in LA, CA
GIA 2.68ct Freeform Natural Australian Black Fire Opal Cabochon 15.31x11.70x2.45mm GIA #2201525624
Category

2010s Loose Gemstones

Materials

Fire Opal

GIA Certified 2.20 Carat Triangular Natural Black Fire Cabochon Opal
Located in LA, CA
2.20ct Triangular Natural Australian Black Fire Opal Cabochon 12.08 x 11.90 x 2.72 mm GIA
Category

2010s Loose Gemstones

Materials

Opal

GIA Certified 3.34 Carat Oval Shape Natural Australian Black Fire Opal
Located in LA, CA
GIA 3.34ct Oval Shape Natural Australian Black Fire OPAL 13.06X9.48X4.18mm GIA #2215413920 Possibly
Category

2010s Loose Gemstones

Materials

Fire Opal

GIA Certified 7.17 Carat Natural Australian Black Fire Opal Platinum Ring
Located in LA, CA
Platinum : 11.80gm Natural Australian Black Fire opal : 7.17ct Natural Diamonds : 0.70ct GIA
Category

2010s American Cocktail Rings

Materials

White Diamond, Black Opal, Fire Opal, Platinum

EGL Certified 14 Karat 1.15 Carat Black Boulder Opal and Diamond Ring
Located in Mobile, AL
Antique 14 karat 1.15 carat Black Boulder Opal and 1.91 carat Miner Cut Diamonds Ring. Made in 1866
Category

Antique 1860s British Early Victorian Cocktail Rings

Materials

Diamond, Opal, 14k Gold

Australian 19.06ct Boulder Opal, Diamond, 18k Gold Platinum Bracelet
Located in MAIN BEACH, QLD
GIA-certified gemologist THE GRYFFIN OPAL DIFFERENCE By investing in solid Australian opal jewellery
Category

1990s Australian Bangles

Materials

Diamond, Opal, 18k Gold, Platinum

19.15 Carat GIA Midnight Black Opal 18 Karat Gold Ring
Located in METAIRIE, LA
This Opulent Opal Solitaire ring features a 19.15 carat GIA Certified Black Opal possessing every
Category

Vintage 1970s More Bracelets

Materials

Opal, Yellow Gold, 18k Gold

GIA Certified Opal Diamond Cocktail Ring
Located in Webster, NY
Stunning custom made GIA certified Opal & Diamond ring. Gemstone: Opal & Diamond Opal Size: 16.5
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, 14k Gold

Certified Opal, Emerald and Diamond Cocktail Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
, the lush green allure of emeralds, and the captivating play of colors from opals. Currently sized at
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Diamond, Emerald, Opal, 18k Gold, White Gold

Certified Opal and Emerald Cocktail Ring Set In 18 K White Gold
Located in Bangkok, Thailand
Crafted in 18K white gold, At the heart of this ring lies a breathtaking natural Opal in a pear
Category

2010s Asian Art Deco Cocktail Rings

Materials

Emerald, Opal, White Gold

GIA Certified 23.08 Carat Opal Ring
Located in Boca Raton, FL
Material: 14k White Gold Gemstone Details: GIA Certified Opal gemstone 23.08ct (GIA# 2195617924
Category

21st Century and Contemporary Dome Rings

Materials

Diamond, White Diamond, Opal, 14k Gold, White Gold

17.03 Ct Pear Opal GIA Certified
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number
Category

2010s Loose Gemstones

Materials

Opal

GIA 2.79ct Natural Black Opal Diamond Platinum Ballerina Cocktail Ring
Located in Miami, FL
The Multicolor natural display on this GIA certified Opal & Diamond ring, is beautifully
Category

1990s Retro Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Mesmerizing 3.64ct Opal Gemstone - GIA Certified
Located in רמת גן, IL
, perfect for creating a one-of-a-kind custom jewelry piece. Certified by GIA, this opal is a stunning
Category

2010s Israeli Loose Gemstones

Materials

Opal

Certified Platinum Opal and Diamond Ring
Located in West Palm Beach, FL
A beautiful platinum Opal & Diamond ring. This, lovely 4.50cts Opal ring is surround with 2cts of
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Opal, Platinum

Modern GIA Certified Black Opal Diamond Platinum Cocktail Ring
Located in Miami, FL
The Have the Beauty of the Universe, right in your finger! This stunning  Black Opal & Diamond
Category

1990s Japanese Art Deco Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Diamond Opal Ring 13.85 TCW 14k Gold Women Certified
Located in Brooklyn, NY
CERTIFIED Price- $5,950 MAGNIFICENT LADIES FINE QUALITY LARGE OPAL 13.85 TCW 14KT RING This
Category

2010s Modern Engagement Rings

Materials

Diamond, Opal, 14k Gold

14 Carat Opal Cabochon Cut Engagement Ring Certified
Located in New York, NY
Arleth 14 Carats Opal Cabochon Cut Engagement Ring with Halo Round Green Emerald in 14k Yellow Gold
Category

2010s American Engagement Rings

Materials

Emerald, Opal, 14k Gold, Yellow Gold

GIA Certified Natural Black Boulder Opal Necklace 18 Karat
Located in New York, NY
Boulder Blues GIA Certified 21.02 x 19.09mm Natural Non treated Black Opal. Report: 2195997717
Category

2010s American Pendant Necklaces

Materials

Opal, 14k Gold, Yellow Gold

GIA Certified Natural Grey Opal Diamond Ring in Platinum
Located in Houston, TX
Platinum ring featuring a natural grey opal accented by diamonds. The opal total 3.15 carats
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, Opal, Platinum

18 Karat Yellow Gold Opal and Diamond Pendant JAGi Certified
Located in Washington Depot, CT
Vintage 18 Karat Yellow Gold Opal and Diamond Pendant JAGi Certified- This stunning pendant
Category

20th Century Pendant Necklaces

Materials

Diamond, Opal, Yellow Gold

Diamond Opal Ring 14k Gold 1.65 TCW Women Certified
Located in Brooklyn, NY
CERTIFIED $2,750 FINE QUALITY OPAL AND DIAMOND 14 KT LADIES RING 1.65 TOTAL CT This beautiful ring
Category

2010s American Modern Fashion Rings

Materials

Diamond, Opal, 14k Gold, White Gold

Certified 13.95 Carat Australian Lightening Ridge Black Opal PT 900 Ring
By Malpani Jewels
Located in Hung Hom, HK
near the margins of an ancient inland sea. In this ring, a certified Australian black opal weighing
Category

2010s Hong Kong Art Nouveau Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Diamond Jelly Opal Drop Earrings 14k Gold 2.4 TCW Certified
Located in Brooklyn, NY
Certificate#201821778 YG (AMTJJ) This is a Certified Authentic Fine Quality Jelly Opal & Diamond
Category

2010s Modern Drop Earrings

Materials

Diamond, Opal, 14k Gold

Certified 7.10 Carat Opal Cabochon and Rubelite Cocktail Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
A beautiful combination of 7.10 carat oval shaped Ethiopian Opal and 2.40 carat oval shaped
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Opal, Rubelite, 18k Gold, White Gold

Certified Fire Opal, Diamond, Emerald and Sapphire Yellow Gold Ring
By Rosior
Located in Porto, PT
Rosior Contemporary Cocktail Ring set in Yellow Gold with: - 1 Cabochon Cut Fire Opal with 4,93 ct
Category

21st Century and Contemporary Portuguese Contemporary Cocktail Rings

Materials

Diamond, Emerald, Opal, Sapphire, Fire Opal, Gold, Yellow Gold, Rhodium

GIA Certified 10.91 Carat Natural Opal Diamonds Pendant 18 Karat
Located in New York, NY
Play of color. GIA Certified 10.91ct. Natural Non treated Opal. Report: 5172413056 Oval cut
Category

2010s American Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

7.71 Carat Certified Black Opal and Diamond Ring in Platinum
Located in La Jolla, CA
-Orange-Yellow. Black Opal weight is 7.71 carats and is AGL certified (please see copy of certificate in
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Black Opal, Platinum

Vintage 2 Carat Oval Black Opal Diamond 3 Stone Platinum Ring GIA Certified
Located in Miami, FL
Vintage GIA certified black opal and diamond ring in platinum 900. The 2.17 carat opal bears an
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

CGL Japan Lab Certified 5.22 Carat Mexican Opal Diamond Solitaire Ring
By Malpani Jewels
Located in Hung Hom, HK
A 5.22 carat CGL Japan Lab certified Mexican Opal is set along with 1.92 carat of F color VS
Category

2010s Hong Kong Anglo-Indian Wedding Rings

Materials

Diamond, White Diamond, Opal, Platinum

Art Deco Platinum 4 Carat Black Opal and Diamond Ring GIA Certified
Located in Cape May, NJ
Era: Art Deco Hallmarks: 10% IR, PLAT Composition: Platinum Primary Stone: Black Opal Stone
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Opal, Platinum

GIA Certified 3.85 Carat Opal Diamond Garnet Platinum Gold Pendant Necklace
Located in Stamford, CT
Original 1915 Edwardian opal, diamond and pearl pendant necklace. GIA certified 3.85ct center opal
Category

Early 20th Century Pendant Necklaces

Materials

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

GIA Certified 11.11 Carat Australian Black Opal Ruby and Diamond Ring
By Nazarelle
Located in Houston, TX
This ring is made with 14 karat white gold and features an 11.11ct GIA certified Australian Black
Category

2010s American Modern Cocktail Rings

Materials

Opal, Diamond, Ruby, 14k Gold, Gold, White Gold, Rhodium

CGL Certified 4.88 Carat Australian Black Opal and Diamond Wedding Ring Platinum
By Malpani Jewels
Located in Hung Hom, HK
A 4.88 carat CGL Japan Lab Certified Australian Black Opal is set along with 1.67 carat of F color
Category

2010s Hong Kong Anglo-Indian Wedding Rings

Materials

Diamond, White Diamond, Opal, Platinum

Certified Color Play Effect Oval Opal 18KT White Gold, Diamond And Emerald Ring
Located in Bangkok, Thailand
This ring features a 10.13 carat natural white Opal with a color-play effect. It is set on a 18K
Category

2010s Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, White Gold

Unique 11.21ct Opal and Diamonds Cocktail Ring in 18k Yellow Gold- IGI Certified
Located in רמת גן, IL
Unique 11.21ct Opal and Diamonds Cocktail Ring in 18k Yellow Gold - IGI Certified This stunning
Category

2010s Israeli Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

GIA Certified Vivid Black Opal 5.19 ct Diamond Engagement Ring 18K Yellow Gold
Located in Suwanee, GA
ever seen! The 4.35 ct Australian Black Opal has an extraordinary play of colors. 5.19 ct Pear and
Category

2010s Australian Artist Cluster Rings

Materials

Diamond, Black Opal, Yellow Gold

Fine Opal Diamond and Emerald 14 Karat 8.57 Carat Necklace Certified
Located in Brooklyn, NY
This is a very Fine Quality and Elegant Large Natural Opal surrounded by Emeralds and Diamonds
Category

2010s Italian Modern Drop Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

GIA Natural Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A tremendous amount of color is exhibited through this GIA certified Australian opal. Placed in an
Category

Vintage 1930s Unknown Art Deco More Rings

Materials

Diamond, Opal, Platinum

Natural GIA Cert Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A tremendous amount of color is exhibited through this GIA certified Australian opal. Placed in an
Category

Vintage 1930s American Art Deco More Rings

Materials

Diamond, Opal, Platinum

1980s GIA Large Black Opal Diamond Platinum Cocktail Ballerina Ring
Located in Miami, FL
mm high, showcasing a prominent Oval Double Cabochon, prong-set GIA Certified Genuine Black Opal
Category

1990s Modern Cocktail Rings

Materials

Diamond, Black Opal, Opal, Platinum

GIA 12.80 Carats Opal Diamond Platinum Halo Cocktail Ring
Located in Miami, FL
A stunning natural large white opal with diamonds in a Halo design compose this exquisite cocktail
Category

Vintage 1980s American Retro Cocktail Rings

Materials

Diamond, Opal, Platinum

Opal, Emerald, Sapphire and Diamond Contemporary Yellow Gold Cocktail Ring
By Rosior
Located in Porto, PT
Opal certified by IGE (ref. D-24202) with 4,37 ct; - 4 "Sugarloaf" Cabochon Fire Opals with 2,13 ct
Category

21st Century and Contemporary Portuguese Contemporary Cocktail Rings

Materials

Diamond, Emerald, Opal, Sapphire, Blue Sapphire, Fire Opal, Gold, Yellow...

GIA Black Opal Australian Platinum Diamond Vintage Ring Fire Solid Huge 6.79 CTS
Located in Sylvania, GA
Old South Jewels proudly presents...LUXURY GIA CERTIFIED SOLID AUSTRALIAN BLACK OPAL & DIAMOND
Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

New Platinum 6.4ctw GIA Oval Cabochon Fiery Gray Opal Round Diamond Halo Pendant
Located in Montclair, NJ
platinum. The pendant features a gorgeous GIA certified gray opal that is 100% natural and weighs exactly
Category

2010s American Pendant Necklaces

Materials

Diamond, Opal, Platinum

18 Karat White Gold Black Opal, Paraiba Tourmaline, and Diamond Ring
By Nazarelle
Located in Houston, TX
This ring is made with 18 karat white gold and features a 4.95ct long natural black opal (GIA
Category

2010s American Modern Cocktail Rings

Materials

Opal, Diamond, Tourmaline, Gold, 18k Gold, White Gold

Vintage 18k Gold GIA Gray Cabochon Opal w Round Baguette Diamond Cocktail Ring
Located in Montclair, NJ
certified, natural gray opal prong set at its center. The gray opal is in perfect condition, has NO CRAZING
Category

Early 2000s Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Vintage 18k Yellow Gold GIA Natural Gray Opal Round Baguette Diamond Halo Ring
Located in Montclair, NJ
certified, natural gray opal prong set at its center. The gray opal is in perfect condition, has NO CRAZING
Category

Late 20th Century Cluster Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

18k Gold 4.46ctw GIA Bezel Set Orange Fire Opal w/ Diamond Brushed Slide Pendant
Located in Montclair, NJ
GIA certified, TOP QUALITY, fire opal stone adorned with 6 adorable round brilliant diamond accents
Category

1990s Pendant Necklaces

Materials

Diamond, Fire Opal, 18k Gold, Yellow Gold

Vintage 18k Two Tone Gold GIA Fiery Opal Dual Diamond Halo Bead Open Work Ring
Located in Montclair, NJ
features a breathtaking, GIA certified, natural opal gemstone neatly and elegantly multi-prong set at the
Category

Late 20th Century Unknown Cocktail Rings

Materials

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

Genuine Opal Gemstone 14k Gold Women s Ring - Certified Opal Cocktail Ring
Located in Sant Josep de sa Talaia, IB
Elegantly handcrafted, this 14k Gold Opal Ring is an ideal gift for promise, engagement, or
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Opal, 14k Gold

GIA Black Opal Diamond Platinum Ballerina Cocktail Ring
Located in Miami, FL
The look of the earth in one piece! This GIA certified Opal & Diamond ring is a perfect icebreaker
Category

Vintage 1980s Modern Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Certified 35.94 Carat White Australian Opal
Located in Antwerp, BE
. Certified by IGI, it’s rare to find an opal of this magnitude, paired with such a delicate play of colors
Category

2010s Australian Loose Gemstones

Materials

Opal

Black Opal Diamond Ring Midcentury Certified Australian
Located in Northampton, MA
An impressive 2.29-carat natural and untreated Australian Type I black opal is the mesmerizing
Category

Mid-20th Century Unknown Retro Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

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Certified Opal For Sale on 1stDibs

On 1stDibs, you can find the most appropriate certified opal for your needs in our varied inventory. Frequently made of Gold, Platinum and 18k Gold, this item was constructed with great care. You can easily find a 22 antique edition and 44 modern creations to choose from as well. Making the right choice when shopping for a certified opal may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. There have been many well-made iterations of the classic certified opal over the years, but those made by Malpani Jewels, Merkaba and Tamir are often thought to be among the most beautiful. While most can agree that any certified opal from our collection can easily elevate most outfits, but the choice of a Diamond version from the 50 available is guaranteed to add a special touch to your ensemble. See these pages for an oval cut iteration of this accessory, while there are also cabochon cut and round cut cut versions available here, too. There aren’t many items for men if you’re seeking a certified opal, as most of the options available are for women and unisex.

How Much is a Certified Opal?

Prices for a certified opal can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $599 and can go as high as $120,000, while this accessory, on average, fetches $10,000.

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).