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3 Ct Opal

GIA 3.59 ct Black Opal and Diamond 3-stone Ring in Platinum
Located in La Jolla, CA
GIA Certified 3.59 carat Black Opal and Diamond 3-stone Ring in Platinum Black Opal and Diamond
Category

21st Century and Contemporary North American Three-Stone Rings

Materials

Diamond, Opal, Black Opal, Platinum

Australian Opal 18K Gold Stud Earrings natural genuine opals
Located in Berlin, DE
measurements: 0.31 x 0.39 in / 8 x 10 mm weight of the opals - 3 ct Worldwide shipping from Berlin, Germany
Category

2010s German Artisan Stud Earrings

Materials

Opal, 18k Gold, Yellow Gold

585 white gold ring with opal and sapphire
Located in Berlin, DE
Main Stone Length: 12 mm Main Stone Width: 10 mm Opal Weight: 3 ct Secondary Stone: Diamond Diamond
Category

21st Century and Contemporary Unknown Modern Dome Rings

Materials

Diamond, Opal, 14k Gold, White Gold

Recent Sales

3 Carat Opal Mixed Cut, Bespoke a Unique Design, Private Consultation
By Irene Bozza
Located in Málaga, ES
3 ct Opal from Central Queensland, Australia. Size: 8 x 13 mm - The design, craftsmanship and
Category

2010s Australian More Jewelry

Materials

Opal

4-3/4 ct. Opal Blue and White Topaz Cluster Setting Sterling Silver Ring
By Affinity Designs LLC
Located in New York, NY
Indulge in the vitality of our Opal and Blue/White Topaz Cluster Setting Sterling Silver Ring
Category

2010s Asian Contemporary Fashion Rings

Materials

Opal, Topaz, Sterling Silver

14 Karat Vintage Sapphire, Opal and Diamond Ladies Ring
Located in Jackson Heights, NY
14k Yellow Gold Weight= 9.5 gr Size= 5 Sapphire= 0.20 ct total Diamond= 0.03 ct total Opal= 3. 75
Category

Vintage 1960s American Art Deco Cluster Rings

Materials

Diamond, Opal, Blue Sapphire, 14k Gold

Ravishing 18k White Gold Solitaire Ring w/ 3 ct Opal IGI Certificate
Located in רמת גן, IL
A gorgeous opal ring with a dazzling 3 carat oval cabochon boulder opal. The jewelry is made of 18K
Category

2010s Israeli Solitaire Rings

Materials

Opal, White Gold, 18k Gold

Antique Art Deco Platinum Black Opal and Diamond Statement Ring
Located in Great Neck, NY
Grams Opal: Approximately 3 ct Diamond: Approximately .10 cts Color: H Clarity: VS2 Ring Size: 7 1
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Beautiful Australian Black Opal Diamond Bracelet in 18K Yellow Gold
Located in Suwanee, GA
Yellow Gold, Australian Black Opal, 1.11 ct 3 Diamond: 0.07 ct Opal Color: Blue & Green Length: 7.5
Category

2010s American Arts and Crafts Charm Bracelets

Materials

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

Beautiful Australian Black Opal Diamond Bracelet in 18K Yellow Gold
Located in Suwanee, GA
Yellow Gold, Australian Black Opal, 1.11 ct 3 Diamond: 0.07 ct Opal Color: Blue & Green Length: 7.5
Category

2010s American Arts and Crafts Charm Bracelets

Materials

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

Antique Victorian 14K Yellow Gold Opal Engraved Three Stone Ring
Located in Great Neck, NY
mounting. Item #R1249 Metal: 14K Yellow Gold Weight: 2.9 Grams Size: 7 3/4 Opals: Approximately 1.25
Category

Antique 18th Century Unknown Victorian Three-Stone Rings

Materials

Opal, Yellow Gold

14 Karat Yellow Gold Pink Opal Diamond Ring Size 8.25 #14843
Located in Washington Depot, CT
cut diamonds set in beautifully detailed 14K yellow gold. Width: 21 mm. Shank: 3 mm. Opal weight
Category

20th Century Engagement Rings

Materials

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

3 Ct Oval Shape Black Australian Opal Cocktail Ring 14 Kt Yellow Gold , Unisex
Located in New York, NY
Introducing our captivating 14 Karat Yellow Gold Cocktail Ring featuring a breathtaking 3 carat
Category

2010s Cocktail Rings

Materials

Opal, 14k Gold, Yellow Gold

3 Ct Oval Shape Black Australian Opal Cocktail Ring 14 Kt Yellow Gold , Unisex
Located in New York, NY
oval-shaped Black Australian Opal. This magnificent piece displays stunning shades of green and blue
Category

2010s Cocktail Rings

Materials

Opal, 14k Gold, Yellow Gold

3 Carat Mexican Fire Opal Ring with Sapphires, Emeralds and Diamonds in 18k Gold
By Zahira Fine Jewellery
Located in Bangkok, TH
enthusiasts. This item comes with the original gem and jewellery certificate. Mexican Fire Opal: 3 ct
Category

2010s Thai Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, Sapphire, Fire Opal, 18k Gold, Yellow Gold

1-3/4 ct. Oval Opal and Multi Gemstone Ethiopian Ring in 14K Rose Gold
By Affinity Designs LLC
Located in New York, NY
Indulge in the magnificence of our Oval-Cut Opal and Multi Gemstone Accent Ethiopian Style Cocktail
Category

2010s Asian Contemporary Cocktail Rings

Materials

Multi-gemstone, Opal, 14k Gold

People Also Browsed

Black Opal Silver Ring Bright Opalescence Australian Stone Unisex
Located in Berlin, DE
Silver ring with natural Black Opal with bright opalescence opal origin - Australia opal measurements - 0.2 x 0.35 in / 5 x 9 mm stone weight - 1.5 carats ring size - 6.5 US / 17 RU ...
Category

2010s German Artisan Fashion Rings

Materials

Opal, Black Opal, Silver, Sterling Silver

Meghna Jewels Opal Sapphire Diamond Drop Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
Cast from 18-karat gold and sterling silver. These beautiful drop earrings are hand set with 4.86 carats Opal doublets, 2.5 sapphire and 4.18 carats of glimmering diamonds. FOLLOW ...
Category

21st Century and Contemporary Contemporary Drop Earrings

Materials

Diamond, Opal, Sapphire, 18k Gold, Sterling Silver

South Sea Pearl Diamond Drop Earrings 1.55 Carats 18K White Gold 14-15 MM
By Harbor Diamonds
Located in New York, NY
18K White Gold drop earrings featuring two South Sea Pearls measuring 14-15 mm flanked with numerous diamonds weighing 1.55 carats. Comes in Rose Gold
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, South Sea Pearl, 18k Gold, White Gold

Steven Battelle 31.0 Carats Rainbow Moonstone 18K Gold Post Earrings
By Steven Battelle
Located in Soquel, CA
These simple and classic 18K gold post earrings are stunning! Wonderful long 9 x 32 mm long flashing rose-cut faceted rainbow moonstones are suspended below 6 x 8 mm oval cabochons,...
Category

21st Century and Contemporary Balinese Contemporary Drop Earrings

Materials

Rainbow Moonstone, 18k Gold

Australian Opal Diamonds 18 Karat White Gold Cocktail Ring
By SCALA GIOIELLI
Located in Marcianise, IT
Amazing 18 Karat white gold cocktail ring. Handmade by our craftsmen and assembled with Australian opal and diamonds. Diamonds weight 0.80 karat Opal weight 6.96 karat Ring total we...
Category

21st Century and Contemporary Italian Artisan Cocktail Rings

Materials

Diamond, Opal, 18k Gold, White Gold

1925s Art Deco 2 Carat Emeralds 2.20 Carat Diamonds Platinum Ring
Located in Poitiers, FR
Ring in platinum. Sublime art deco ring, its entire platinum setting is closed set on its top with a Colombian emerald- cut emerald and an antique- cut diamond. This duo of gems is s...
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Art Deco style 1.84 Carat vintage round cut diamond ring
By Antinori Fine Jewels
Located in Chicago, IL
This diamond and emerald ring has a stunning Art Deco style design with an eye catching 1.84ct vintage round cut diamond surrounded by ribbons of custom cut emeralds and glittering d...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Tiffany Co. 18k Yellow Gold Choker Necklace
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. Round 18k Yellow Gold Choker Necklace Inner circumstances 13.25 inches Marked: Tiffany & Co. 750
Category

1990s Unknown Contemporary Choker Necklaces

Materials

18k Gold, Yellow Gold, Gold

Rare Vintage Van Cleef Arpels Emerald Diamond 18k Gold Fleurette Flower Ring
By Van Cleef Arpels
Located in Birmingham, GB
Fine Vintage Van Cleef & Arpels Emerald And Diamond 18k Yellow Gold Fleurette Flower Ring. A stunning vintage ring with a unique floral design typical of Van Cleef & Arpels, set wit...
Category

20th Century French Cocktail Rings

Materials

Emerald, White Diamond, Diamond, Yellow Gold, 18k Gold, Gold

Art Deco over 2 carat Diamond Marquise Sapphire Platinum Ring
Located in Geneva, CH
Art Deco over 2 carat Diamond Marquise Sapphire Platinum Ring. Marquise Diamond approx. 2.20 carat M P1, blue sapphire approx. 0.80 carat and diamonds pave 1.20 carat. Size: 56 / 7...
Category

Early 20th Century European Engagement Rings

Materials

Diamond, Sapphire, Platinum

Doublet Opal Gold Ring Polychrome Gem Natural Harlequin Opal Polar Lights Unisex
Located in Berlin, DE
18K yellow gold ring with doublet of a natural black opal on a petrified wood base opal origin - Australia opal measurements - 0.12 х 0.35 х 0.94 in / 3 х 9 х 24 mm ring size - 7 US...
Category

2010s French Art Deco Fashion Rings

Materials

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

Art Deco Diamond Platinum Engagement Ring
Located in Greenwich, CT
Tour de force. With an original platinum Art Deco mounting and 7.53 carat emerald cut diamond, this spectacular engagement ring is all about strength of style. Circa 1920. Diamond...
Category

Vintage 1920s American Modernist Engagement Rings

Materials

Diamond, Platinum

Aquamarine Diamond and Blue Sapphire Art Deco Style Engagement Ring in 18K Gold
Located in Bangkok, TH
A beautiful Art Deco style engagement ring is set with a round aquamarine and adorn with diamonds and milgrain. A decoration of blue sapphires adds to the delicacy of this ring. The ...
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Blue Sapphire, 18k Gold, White Gold

1916 Ring natural 8ct Aquamarine solid 18K Gold Ø8.25 US / 8.6 gr
Located in SE
A Ring in solid 18K Yellow Gold with carved shoulders, decorated with claw set natural emerald cut Aquamarine of light Blue color with tint of Green, measuring 13 mm x 10 mm x 8.25...
Category

Vintage 1910s Swedish Art Nouveau Cocktail Rings

Materials

Aquamarine, 18k Gold

Tiffany Co. 4.43 Carat GIA G SI1 Diamond Heart Necklace
By Tiffany Co.
Located in New York, NY
Discover the world of Tiffany & Co. with this Diamond Heart Necklace, featuring a breathtaking 4.43 carat heart-shaped GIA certified diamond with G color and SI1 clarity which offers...
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Turquoise and 18K Yellow Gold Hoop Earrings
Located in Bangkok, Thailand
ALL OUR PRICES INCLUDE PREPAID TARRIFS & CUSTOMS DUTIES. A pair of 18k Gold hoop earrings set with round cabochon Turquoise. This beautiful statement earrings are great present for ...
Category

21st Century and Contemporary Modern Hoop Earrings

Materials

Turquoise, Gold, 18k Gold, Yellow Gold

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3 Ct Opal For Sale on 1stDibs

Surely you’ll find the exact 3 ct opal you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. Find an antique version now, or shop for 55 vintage or 200 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 3 ct opal may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Finding an appealing 3 ct opal — no matter the origin — is easy, but Renata Bernard, LB Exclusive and Sarosi By Timeless Gems each produced a popular version that is worth a look. Today, if you’re looking for a cabochon version of this piece and are unable to find the perfect match, our selection also includes mixed cut and oval cut alternatives. When shopping for a 3 ct opal, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 3 Ct Opal?

The price for a 3 ct opal starts at $180 and tops out at $235,400 with these rings, on average, selling for $5,700.

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).