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Giancarlo Montebello 18K Y. Gold "Royal" Ring Ct. 3 Fire Opal Baguette Diamonds
By Giancarlo Montebello
Located in Bari, IT
our Enrico Trizio 1868 jewelry. A very elegant yellow gold ring "Royal" with Adularia Ct. 3 fire opal
Category

21st Century and Contemporary Italian Art Deco Fashion Rings

Materials

Diamond, Opal, Fire Opal, Yellow Gold

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

Edwardian 6.00 Ct Harlequin Opal 1.80 Ct Diamond 18 KT Pendant
Located in Napoli, IT
exceptional sparkle 3 old European cut diamonds totalling approx 1.10 Ct (G/H-VS/SI) – 23 old mine cut
Category

Early 20th Century European Edwardian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, 9k Gold, Platinum

12.30 Ct Australian Opal Diamond Large Solitaire ring
Located in Napoli, IT
cabochon cut natural opal of approx 12.30 Ct (22.34 mm. x 16.33 mm.) – two old cut and 2 baguette cut
Category

Mid-20th Century Italian Contemporary Solitaire Rings

Materials

Diamond, Opal, 18k Gold

Victorian 2.0 Ct Opal Five Stone 18 Kt Ring
Located in Napoli, IT
gold, tested Hallmarks: none/worn Gems: 5 oval cabochon cut natural opal totaling approx 2.00 ct (3.7 x
Category

Antique 1880s European Victorian Engagement Rings

Materials

Opal, 18k Gold

Estate Marquee Shaped Fire Opal 2.60 Ct Diamond Ring
Located in Napoli, IT
totalling approx 2.60 Ct (G/VVS-SI) UK size: O 3/4 US size: 7.5 Measures: head is 32 mm. x 16 mm. (h. x w
Category

Mid-20th Century Italian Contemporary Cocktail Rings

Materials

Diamond, Fire Opal, 18k Gold

Vintage Style 6.0 Ct. Ruby Red Fire Opal Diamond Solitaire ring
Located in Napoli, IT
6.0 Ct. Natural Opal (14,5 x 11.1 mm.) of stunning opalescent Ruby Red color as rarely seen Gorgeous
Category

Antique 1880s European Contemporary Solitaire Rings

Materials

Diamond, Opal, Fire Opal, 18k Gold

Rare Orange Creamy Natural Fire Opal Gemstone Cabochons, 20 Ct for Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Opal PIECE(S): 3 WEIGHT: 20 Carats SHAPE: Oval and Pear Shape Cabochons SIZE (MM
Category

21st Century and Contemporary Ethiopian Contemporary Loose Gemstones

Materials

Opal, Fire Opal

Art Nouveau 2.25 Ct Solid Australian Opal Diamond Tiara Ring
Located in Napoli, IT
: 1 pear cabochon cut natural Harlequin opal of approx 2.25 Ct (10.62 mm. x 8.36 mm.) – 3 old European
Category

Early 20th Century European Art Nouveau Cluster Rings

Materials

Diamond, Opal, 18k Gold

Natural 5.10 Ct Australian Opal Crystal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 5.10 Ct natural Australian crystal opal, carved into a pair of butterfly wings, is a
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

12.55 Ct. Fire Opal & Pave' Diamond Designer Ring in 18K Gold by Assor Gioielli
By Assor Gioielli
Located in Honolulu, HI
Magnificent fire opal & champagne diamond ring by Assor Gioielli. This ring features a stunning
Category

21st Century and Contemporary Italian Modern Cocktail Rings

Materials

Diamond, Opal, Fire Opal, 18k Gold

8-1/20 ct. Created Opal and Blue & White Topaz Sterling Silver Earrings
By Affinity Designs LLC
Located in New York, NY
opals, London blue, sky blue and white topaz in round and square shapes. The intricate design and high
Category

2010s Asian Contemporary Clip-on Earrings

Materials

Opal, Topaz, Sterling Silver

Elegant 20K Yellow Gold Opal Diamond Ring w/ 0.12 ct Natural Diamonds NGI Cert
Located in רמת גן, IL
Beautiful 20k yellow gold opal diamond ring. This ring comes with NGI report and a fancy box. -1
Category

2010s Singaporean Cluster Rings

Materials

Diamond, Opal, Yellow Gold, 18k Gold

14-7/8 ct. Oval Opal and Cluster Setting Pink Sapphire Sterling Silver Bracelet
By Affinity Designs LLC
Located in New York, NY
Indulge in the captivating beauty of our Sterling Silver Opal and Cluster Setting Pink Sapphire
Category

2010s Asian Contemporary Tennis Bracelets

Materials

Opal, Pink Sapphire, Sterling Silver

41-4/5 ct. Emerald-Cut Sky Blue Topaz and Octangle Opal Sterling Silver Bracelet
By Affinity Designs LLC
Located in New York, NY
-3/4ct. Octangle Opal: 7.0 X 5.0mm - 15-3/4ct. This bracelet length is approximately 7". Note: All
Category

2010s Asian Contemporary Modern Bracelets

Materials

Opal, Blue Topaz, Sterling Silver

Amethyst Opal Lilac Quartz Diamonds 3 Row 18k Gold Fabulous Bracelet for Her
By Natkina
Located in Montreux, CH
Bracelet Rose 18K Gold Diamond 0,99 ct Pink Tourmaline Amethyst London blue topaz Sky blue topaz
Category

2010s Swiss Modern Modern Bracelets

Materials

Diamond, Tourmaline, Amethyst, Opal, Quartz, Gold, 18k Gold

Black Opal, Sapphires, Peridots, Diamonds 14k Gold Ring, Genuine Opal Ring
By Daizy Jewellery
Located in Istanbul, TR
gemstone: Opal, oval cabochon, color: black - multicolor, weight 1.5 ct aprox., semi - transparent. Play
Category

2010s Turkish Modern Cocktail Rings

Materials

Black Opal, Sapphire, Peridot, Opal, Diamond, 14k Gold

18 Carat Natural Fire Opal Pear, Fancy Opal, October Birthstone, Orange Gemstone
Located in New York, NY
DETAILS Fire Opal Weight: 18.19 CT Measurements: 23.4 x 18.1 mm Shape: Pear Color: Intense Orange
Category

21st Century and Contemporary American Artisan Loose Gemstones

Materials

Opal, Fire Opal

Opal 14k gold ring.
By Daizy Jewellery
Located in Istanbul, TR
Opal 14k gold ring. 3 gemstone, trio opal ring. Opal Vintage ring. Multicolor opal ring. Opal
Category

2010s Turkish Modern Three-Stone Rings

Materials

Opal, Gold, 14k Gold

Seahorse pendant with opal.
By Daizy Jewellery
Located in Istanbul, TR
: Opal: oval cabochon shape, orange-yellow with color flash on pen light, transparent, 1.0 ct. Emerald
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Emerald, Opal, Gold, 14k Gold

Seahorse pendant with opal.
Seahorse pendant with opal.
No Reserve
W 0.54 in L 1.23 in
Black Opal Vitage Style Ring in 14 Karat Gold, Ethiopian Opal Cabochon Ring
By Daizy Jewellery
Located in Istanbul, TR
opal ring. Multicolor opal ring. Material: 14 karat gold (you can choose color). Weight: 2.6 - 3 g
Category

2010s Turkish Modern Cocktail Rings

Materials

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

Opal, pearl Vintage style pendant.
By Daizy Jewellery
Located in Istanbul, TR
are tested by proffesional gemmologist): 1.Opal - oval cabochon cut, - 1.5 ct, semi-transparent
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Opal, Pearl, Gold, 14k Gold

Opal, pearl Vintage style pendant.
Opal, pearl Vintage style pendant.
No Reserve
W 0.95 in L 1.66 in
Peacock Feather Opal 14k gold ring
By Daizy Jewellery
Located in Istanbul, TR
. Ethiopian Opal adjustable ring. Bypass Shank Peacock Feather Ring. Metal: 14k gold Weight: 3 gr depends
Category

2010s Asian Modern Cocktail Rings

Materials

Opal, 14k Gold

14k Gold R Ring with Opals
By Daizy Jewellery
Located in Istanbul, TR
) Opals: 3 pieces, Oval cabochon cut, 8x6 mm each. 1.2x3 -3.6 total ct, semi-transparent, flashing red
Category

2010s Turkish Modern Fashion Rings

Materials

Opal, 14k Gold

Natural rubies, opals and diamonds ring.
By Daizy Jewellery
Located in Istanbul, TR
inclusions Set with opals - 3 piecs - Cut: round cabochon, Weight: aprx 1.2 (3x0.4) ct., Color: multy
Category

2010s Turkish Modern Fashion Rings

Materials

Ruby, Opal, Diamond, 14k Gold, Gold

4.60 Carat Australian Black Opal Diamond Platinum Ring
Located in Beverly Hills, CA
spark conversation wherever you go. At its heart lies a captivating 4.60 CT Australian Black Opal. Its
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Opal, Black Opal, Platinum

14k Gold Ring with Sapphires and Opals
By Daizy Jewellery
Located in Istanbul, TR
Gemstones (all are tested by professional gemmologist) Sapphires 3 pieces round rose old cut - 1.2 ct
Category

2010s Turkish Modern Fashion Rings

Materials

Opal, Sapphire, 14k Gold

14k Gold Ring with Rubies, Diamonds and Opals!
By Daizy Jewellery
Located in Istanbul, TR
. Weight: 1.75 g. Gemstones: 1. Natural rubies: 3 pieces, weight - approx 0.45 ct (3 pieces x 0.15 ct
Category

2010s Turkish Modern Fashion Rings

Materials

Diamond, Opal, Ruby, 14k Gold

14 Karat Yellow Gold Opal and Diamond Ring
Located in Washington Depot, CT
gold. Width: 25 mm. Shank: 3 mm. Approximate total diamond weight: .20 ct. Diamond clarity: SI1-I1
Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Yellow Gold

Vintage style gold pendant with opal, pearl, diamonds.
By Daizy Jewellery
Located in Istanbul, TR
, 8.2x6 mm, white color 3. Diamonds: round brilliant shape, 4 pieces - 0.01 ct each - 0.04 total, Si
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Opal, Pearl, Gold, 14k Gold

14k Gold Starhorse Pendant with Opal, Emerald and Diamonds
By Daizy Jewellery
Located in Istanbul, TR
inclusions, 0.08 ct. Diamonds: round brilliant shape, 3 pieces - 0.01 ct each (0.03 ct total), VS-SI clarity
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Emerald, Opal, 14k Gold

14k Gold Cross Pendant with Colored Stones Fire Opals and Tsavorites
By Daizy Jewellery
Located in Istanbul, TR
color, transparent, approx 0.50 ct (18 pieces total, 2.2 mm each stone). 2. Fire Opals: marquise cut
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Opal, Tsavorite, Fire Opal, 14k Gold

14 Karat Yellow Gold Tanzanite and Opal Ring #13769
Located in Washington Depot, CT
5 mm) set in classic 14K yellow gold. Shank: 3 mm. Tanzanite weight: 1.62 ct. Total opal weight
Category

20th Century Cocktail Rings

Materials

Opal, Tanzanite, Yellow Gold

14 Karat White Gold Opal and Diamond Ring
Located in Washington Depot, CT
ring measures 16 mm x 12 mm. Shank: 3 mm. Approximate total diamond weight: .35 ct. Diamond color
Category

20th Century Fashion Rings

Materials

Diamond, Opal, 14k Gold, White Gold

14 Karat Gold Pendant with Opal, Pearl and Diamonds
By Daizy Jewellery
Located in Istanbul, TR
, size - 8.2 x 6 mm, white color. 3. Diamonds: Round brilliant shape, weight - 4 pieces, 0.01 ct each
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Opal, Pearl, Gold, 14k Gold

14 Karat Gold Pendant with Opal, Pearl and Diamonds
14 Karat Gold Pendant with Opal, Pearl and Diamonds
No Reserve
W 0.95 in D 0.28 in L 1.66 in
14 Karat Yellow Gold Opal and Diamond Ring
Located in Washington Depot, CT
Vintage 14 Karat Yellow Gold Opal and Diamond Ring Size 7- This lovely ring features one oval opal
Category

20th Century Fashion Rings

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Austrian Art Nouveau Opal Foliage Pearl Wide Bracelet
Located in Napoli, IT
natural opal totaling approx 6.00 Ct Measures: 19 x 4 cm. (l. x w.) – each link is 4 x1.7 cm. (l. x w
Category

Early 20th Century Austrian Art Nouveau Link Bracelets

Materials

Opal, Pearl, 14k Gold

Meghna Jewels 3.06 Carats Fire Opal Diamond 18 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
. Composition Size - US-7 Gold Weight - 5.742 gm Opal Fire - 3 carat Diamond Weight - 0.77 Ct Gross Weight
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Opal, Fire Opal, Gold, 18k Gold

Rose Gold Black Opal Emerald Sapphire Demantoid Diamond Pave Pendant
By Joke Quick
Located in Antwerp, BE
Black Opal Lightning Ridge : 1.75 ct. Colombian Emerald centerstone: 0.36 ct. 8 X Colombian Emeralds
Category

2010s Belgian Contemporary Pendant Necklaces

Materials

Black Opal, Opal, Garnet, Emerald, Sapphire, White Diamond, Diamond, Ros...

14 Karat Gold Pendant with Opal, Pearl and Diamonds
By Daizy Jewellery
Located in Istanbul, TR
. Gemstones (all are tested by professional gemmologist): 1. Genuine opal: Oval cabochon cut, weight - 1.50 ct
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Opal, Pearl, 14k Gold, Gold

14 Karat Gold Pendant with Opal, Pearl and Diamonds
14 Karat Gold Pendant with Opal, Pearl and Diamonds
Free Shipping
W 0.95 in D 0.28 in L 1.66 in
Incredible Color Australian Semi-Black Opal Tsavorite Diamond Engagement Ring
Located in Suwanee, GA
Gold.  There is a small Included on the opal.  Please kindly find it in picture 3. Free Domestic USPS
Category

2010s American Arts and Crafts Engagement Rings

Materials

Diamond, Opal, Tsavorite, Black Opal, 18k Gold

Ethiopian Opal and Diamond Dangling Earrings in 14KY Gold
Located in New York, NY
for the perfect gift! Gold: 4.25 gms 14K yellow Gold Opal: 8.18 ct Pear shaped Ethiopian Opal
Category

21st Century and Contemporary Drop Earrings

Materials

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

14k Solid Yellow Gold 4.1 Carat Opal Tennis Bracelet
By VR Jewels
Located in Houston, TX
- 4.1 ct Stone Shape - Round Stone Pcs - 53 Stone Size - 3 mm Gross Weight - 9.93 Grams Setting - Prong
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Opal, Gold, 14k Gold, Yellow Gold

14 Karat Yellow Gold Opal Triplet and Diamond Ring #13915
Located in Washington Depot, CT
14K yellow gold. Width: 19 mm. Shank: 3 mm. Total diamond weight: .15 ct. Diamond color: I-J
Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Yellow Gold

Contemporary Black Opal and Diamond White Gold Ring with AGL Report
By DSL
Located in Lexington, KY
ring is currently sized at a 6. The black opal has a total weight of 0.61 ct. The diamonds have an
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Black Opal, Opal, Diamond, White Gold

Retro 8.0 Australian Opal Rose Cut Diamond 18 Kt Ring
Located in Napoli, IT
Australian Opal 8.0 Ct – measuring 19.93 mm. x 16.48 mm. it displays a myriad of color flashes getting trough
Category

Vintage 1940s European Retro Cluster Rings

Materials

Diamond, Opal, 18k Gold

Bright Australian Semi-Black Opal and Tsavorite Garnet Engagement Wedding Ring
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 18K Yellow Gold Australian Semi-Black Opal: 0.55 ct ...
Category

2010s American Artist Engagement Rings

Materials

Garnet, Opal, Tsavorite, Black Opal, 18k Gold, Yellow Gold

English Opal and Rose-cut Diamond Three Stone Ring
Located in New York, NY
approximate total weight .08 carat); 3 oval opals (with approximate total weight 1.00 carats); 18 karat gold
Category

Early 20th Century English Three-Stone Rings

Materials

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

Round Opal and Diamond Cocktail Ring 18 Karat White Gold, Estate
Located in New York, NY
3 ct 18 Karat White Gold Weight: 12 gram Ring Size 6
Category

2010s Cocktail Rings

Materials

Diamond, Opal, 18k Gold

18kt Rose Gold Les Papillons Ring with Pink Opal and Diamonds
By Falcinelli Italy
Located in Arezzo, IT
, 18 kt rose gold. Available in four colours: decorated with pink opal (10.20 ct), green aventurine
Category

21st Century and Contemporary Italian Contemporary Fashion Rings

Materials

Diamond, Opal, Rose Gold

Art Nouveau Diamond Opal Pendant/Brooch, circa 1900
Located in London, GB
. Dimensions: Pendant Height 35mm (including pear shape opal drop) (3.5cm) 1 3/8" (1.38 inches) Width 39mm
Category

Antique Early 1900s British Art Nouveau Pendant Necklaces

Materials

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

Antique Circa 1900s 14k Gold Natural Diamond And Opal Decorated Ring
Located in Fatih/İstanbul, 34
-H color and vvs-vs clarity. Totally is opal about 3 ct. Ring size is US 5.5 We can make any size
Category

Antique Early 1900s European Victorian Cocktail Rings

Materials

Diamond, Opal, 14k Gold

Art Nouveau Diamond Opal Pendant/Brooch, circa 1900
Located in London, GB
35mm (including pear shape opal drop) (3.5cm) 1 3/8" (1.38 inches) Width 39mm (at widest) (3.9cm) 1 1
Category

Antique Early 1900s British Art Nouveau Pendant Necklaces

Materials

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

Natural Opal & Diamond Tennis Bracelet 14 Karat Two Tone Gold
Located in New York, NY
at the pictures, There are 7 oval Opal stones Total weight of Opal is approximately 3 carat. The
Category

2010s Tennis Bracelets

Materials

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

Unique Pattern Mexican Fire Opal Diamond Agate Pendant Necklace 18K Yellow Gold
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 18k Yellow Gold Mexican Fire Opal, 1.30 ct 3 Diamond...
Category

2010s American Artist Pendant Necklaces

Materials

Agate, Diamond, Opal, Fire Opal, 18k Gold, Yellow Gold

1934 Ring 3 stones 0.47 ct Sapphire Diamonds solid 18K Gold Ø US 8.75 / 1.6 gr
Located in SE
ct each. All with open backs. Swedish ring, hallmarked 18K. Workshop GD& Co, city of Malmö. Marks of
Category

Vintage 1930s Swedish Art Deco Cluster Rings

Materials

Diamond, Sapphire, 18k Gold

Vintage Inspired Australian Solid Opal Engagement Wedding Ring 14K Gold
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 14K Yellow Gold Australian Solid Opal, 0.22 ct Opa...
Category

2010s American Artist Engagement Rings

Materials

Opal, 14k Gold, Yellow Gold

Rectangle Australian Boulder Opal Diamond Engagement Ring 18K Yellow Gold
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT 18K Yellow Gold, Boulder Opal: 0.33 ct 2 Diamonds: 0.04 ...
Category

2010s American Artist Engagement Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Minimalist Australian Solid Opal Diamond Hola Ring 18K Yellow Gold
Located in Suwanee, GA
. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 18k Yellow Gold Australian Solid Opal: 0.032 ct Diam...
Category

2010s American Artist Engagement Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Lightning Ridge Opal Chrysophrase Paraiba Tourmaline White Diamond Mosaic Ring
By Joke Quick
Located in Antwerp, BE
breathtaking mosaic pattern. 18K Rose gold 9.5 g 5 X Semi Black Opal Lightning Ridge : 1.66 ct. 16 X
Category

2010s Belgian Artist Fashion Rings

Materials

Chrysophrase, Diamond, White Diamond, Opal, Tourmaline, Paraiba, 18k Gol...

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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.