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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

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

Tanzanite and Opal, Diamond Earrings 14 Karat, circa 1985 Dangle
Located in Aliso Viejo, CA
opal inlay cut stones. GIA Gemologist inspected & evaluated
Category

Late 20th Century Unknown Retro Dangle Earrings

Materials

Tanzanite, 14k 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 Certified 11.11 Carat Australian Black Opal Ruby and Diamond Ring
By Nazarelle
Located in Houston, TX
Opal (GIA Certificate number: 5202388982) with a mixture of colors like red, orange, green, and blue
Category

2010s American Modern Cocktail Rings

Materials

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

14 Karat Gold Oval Black Opal and Diamond Halo Ring
Located in Coral Gables, FL
14 Karat White & Yellow Gold Cocktail Ring Featuring A Magnificent 20 Carat Oval Black Opal (GIA
Category

Vintage 1980s Cocktail Rings

Materials

Diamond, Opal, Gold, 14k Gold

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

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

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

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

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

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

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

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

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 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
, accompanied by a GIA report. On the sides of the opal are two triangular shaped diamonds totaling 0.77 carats
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, Opal, Platinum

Victorian Black Opal Cabochon 18 Karat Gold Oval Stickpin GIA
Located in Philadelphia, PA
Featuring an oval black opal double cabochon measuring approximately 10.9 x 9.5 mm Opaque dark
Category

Antique Early 1900s Victorian Brooches

Materials

Opal, Black Opal, Gold, 18k Gold, Yellow Gold

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

GIA 5.39 carats Black Opal Diamond Ballerina Cocktail Ring in Platinum
Located in La Jolla, CA
GIA 5.39 carats Black Opal and Diamond Ballerina Cocktail Ring in Platinum Black Opal and Diamond
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

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

Estate Platinum GIA 3.05ctw Oval Gray Opal Baguette Diamond Cocktail Ring
Located in Montclair, NJ
wear. Excellent condition! Comes w/ GIA certification for the opal! Stock Number: MK-49095183
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 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

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

GIA Opal Vintage Pendant 14K Gold Australian Natural Huge Solid Rainbow 6.64 Cts
Located in Sylvania, GA
Old South Jewels proudly presents. GIA AUSTRALIAN OPAL VINTAGE 14K SOLID GOLD PENDANT! BEAUTIFUL
Category

Late 20th Century Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Gold, 14k Gold

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

Platinum GIA 3.22ctw Blue Green Black Opal Baguette Diamond Sides Classic Ring
Located in Montclair, NJ
w/ GIA certification for the opal! Stock Number: MK-170106019 --Certification Details:-- Laboratory
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Black Opal, Platinum

Vintage 14k Yellow Gold GIA Opal Rondelle Beads Graduated 22" Strand Necklace
Located in Montclair, NJ
some light wear. Excellent overall condition. Comes w/ GIA certification for 1 randomly picked opal
Category

20th Century Beaded Necklaces

Materials

Opal, Gold, 14k Gold, Yellow Gold

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

Vintage 18k Gold 61.40ctw GIA Oval Cabochon Opal Diamond Pin Brooch Pendant
Located in Montclair, NJ
. Excellent condition! Comes w/ GIA certification for the opal! Stock Number: MK-170314703-23112420-EY
Category

21st Century and Contemporary Brooches

Materials

Diamond, Opal, 18k Gold, White Gold

14k White Gold Gia Pear Opal Emerald Diamond Halo Large Substantial Ring
Located in Montclair, NJ
for the opal! Stock Number: MK-160210969-24041918 --Certification Details:-- Laboratory: GIA Report
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Opal, White Gold

Magnificent 18k Gold GIA 12.25ctw Black Opal Diamond Halo Cocktail Ring
Located in Montclair, NJ
! Comes w/ GIA certification for the opal! Stock Number: MK-190321566 --Certification Details
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Black Opal, Gold, 14k Gold, 18k Gold, White Gold, Yellow Gold

14K Gold 44.35ct GIA Cabochon Fiery Opal Marquise Round Diamond Large Pendant
Located in Montclair, NJ
magnificent diamond frame. The opal has been GIA certified as being 100% natural stone, weighing approximately
Category

1990s Pendant Necklaces

Materials

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

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

Antique Art Deco Platinum Natural Black Opal and Diamond Statement Ring - GIA
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Natural Black Opal and Diamond Statement Ring - GIA. This
Category

Vintage 1930s Art Deco Fashion Rings

Materials

Diamond, Opal, Platinum

New 18k Gold 46.6ctw GIA Oval Black Opal w/ Diamond Halo Large Pendant Necklace
Located in Montclair, NJ
certification for the opal. Stock Number: EK-330254560-23030104-EY --Certification Details:-- Laboratory: GIA
Category

2010s American Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, White Gold

Platinum GIA 21.78ctw Fiery Incredible Play Of Color Opal w/ Diamond Sides Ring
Located in Montclair, NJ
overall condition! Comes w/ GIA certification for the opal! Stock Number: MK-410275063 --Certification
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Vintage 14K Gold GIA Large Teardrop Fiery Opal Diamond Pendant w/ Fancy Chain
Located in Montclair, NJ
, handmade basket and dangles from a lovely diamond cluster at its top. The opal has been GIA certified as
Category

Vintage 1940s Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

New 18k White Gold 2.41ctw GIA Opal Diamond Halo Pendant Adjustable Necklace
Located in Montclair, NJ
the opal. Stock Number: MK-710113694 --Certification Details:-- Laboratory: GIA GIA Report Number
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Gold, 14k Gold, 18k Gold, White Gold

14k Yellow Gold GIA 1.35ct Oval Bezel Set Black Opal Pendant Necklace Chain
Located in Montclair, NJ
chain. Excellent condition! Comes w/ GIA certification for the opal. Stock Number: MK-38021534-PAR
Category

Antique 19th Century Pendant Necklaces

Materials

Black Opal, Gold, 14k Gold, Yellow Gold

New Platinum 8.20ctw GIA Oval Cabochon Opal W/ Ruby Diamond Halo Cocktail Ring
Located in Montclair, NJ
and absolutely breathtaking natural opal gemstone neatly and elegantly multi-prong set at the center
Category

2010s American Cocktail Rings

Materials

Diamond, Opal, Ruby, Platinum

Vintage 18k Gold GIA Gray Cabochon Opal w Round Baguette Diamond Cocktail Ring
Located in Montclair, NJ
: Vintage piece. Excellent condition! Comes with original GIA certification for the gray opal. Stock Number
Category

Early 2000s Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

New 18k Gold 11.36ctw GIA Oval Brown Boulder Opal Diamond Halo Cocktail Ring
Located in Montclair, NJ
guaranteed impress. Comes with the original GIA certification for the opal. Enjoy :) --Stone(s):-- (1
Category

2010s American 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
piece. Excellent condition! Comes with original GIA certification for the gray opal. Stock Number: STE
Category

Late 20th Century Cluster Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

GIA Tahitian Pearl Emerald Opal 14K Earrings Victorian Vintage Fine 4.14 Carats
Located in Sylvania, GA
Old South Jewels proudly presents.... LUXURY. GIA Certified ANTIQUE 14K GOLD TAHITIAN PEARL
Category

Antique 19th Century Retro Dangle Earrings

Materials

Emerald, Opal, Pearl, Black Pearl, Gold, Yellow Gold, 14k Gold, Rose Gold

Antique Art Nouveau 14k Gold GIA Peruvian Opal Open Foliage Scroll Work Pin
Located in Montclair, NJ
/ original GIA certification for the opal. Stock Number: MK-70017121-PAR --Certification Details
Category

Vintage 1910s Art Nouveau Brooches

Materials

Opal, Gold, 15k Gold, 9k 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

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

Peter Suchy Full Bezel Oval Opal Gold Ring
By Peter Suchy
Located in Stamford, CT
from the Peter Suchy workshop. 1 oval opal approx. total weight 4.00cts GIA cert# 5151952063 18k
Category

2010s Cocktail Rings

Materials

Opal, 18k Gold, Yellow Gold

Louis Comfort Tiffany Black Opal Ring, 5.50 carats
By Louis Comfort Tiffany
Located in New Orleans, LA
his passion for color, light and nature. At its heart lies a mesmerizing cabochon black opal, weighing
Category

20th Century American Art Nouveau Cocktail Rings

Materials

Black Opal, Yellow Gold

Natural Black Opal and Diamond Dangle Earrings 9 Carats Total 18K White Gold
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Opal = 7.96 Carats Diamonds = 1.05 Carats Metal: 18K
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Opal, Black Opal, Gold, 18k Gold, White 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

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Opal Gia For Sale on 1stDibs

Find the exact opal gia you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using gold, 14k gold and platinum. Our collection of these items for sale includes 87 vintage editions and 123 modern creations to choose from as well. If you’re looking for an opal gia 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, .5 carat and 1 carat are consistently popular carat weights. Creating an opal gia has been a part of the legacy of many jewelers, but those produced by ANGARA INC., Peter Suchy and Nazarelle are consistently popular. While most can agree that any opal gia from our collection can easily elevate most outfits, but the choice of an opal version from the 156 available is guaranteed to add a special touch to your ensemble. A cabochon version of this piece has appeal, but there are also oval cut and round cut versions for sale. When shopping for an opal gia, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Opal Gia?

The price for an opal gia starts at $125 and tops out at $645,000 with these rings, on average, selling for $1,499.

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).