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4 Carat Opal

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4 Carat Opal Thai Princess Ring in 14 Karat Gold
Located in Atlanta, GA
Circa: 1980 Metal Type: 14 karat yellow gold Weight: 6.5 grams Size: US 7.25, resizable Opal
Category

Vintage 1980s Unknown Modern Cocktail Rings

Materials

Opal, Gold

4 Carat Opal Ring Mid-Century Modern 14 Karat Gold Eames Era Retro
Located in New York, NY
THIS IS A WONDERFUL RETRO MID-CENTURY MODERN FOUR CARAT OPAL RING IN 14K YELLOW GOLD WITH A
Category

20th Century Unknown Modern Cocktail Rings

Materials

Opal, Gold, 14k Gold, Yellow Gold

Karbra 14k Yellow Gold Tahitian Pearl and 4 Carat Opal Beetle Stick Pin
Located in Sherman Oaks, CA
Carat Weight of Opal = 4.12 ct Tahitian Pearl Appx 7.5 mm in Diameter Karbra 1966 Gorgeous Piece!
Category

Vintage 1960s Modern Brooches

Materials

Opal, Pearl, Gold, 14k Gold, Yellow Gold

18 Karat White Gold White Opal Ring '3 1/4 Carat'
Located in San Francisco, CA
This colorful opal and diamond ring features an oval opal framed by Micro prong round brilliant
Category

21st Century and Contemporary American More Rings

Materials

Opal, White Gold

Steven Battelle 4 Carats Boulder Opal Sterling 18k Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful irregular shaped 9 x 19 mm cabochon of Quipee mine Australian boulder opal displays
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Opal, 18k Gold

1.32 Carat Freeform Cabochon Gray 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 Australian More Jewelry

Materials

Opal

1.32 Carat Freeform Cabochon Gray Opal GIA Certified
1.32 Carat Freeform Cabochon Gray Opal GIA Certified
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W 0.43 in D 0.17 in L 0.24 in
4 Carat Mexican Fire Opal Ruby Ring 14 Karat Gold Art Deco Retro Cocktail Ring
Located in New York, NY
ring is 14 Karat Gold. The sparkling oval Mexican Fire Opal is approximately 4 Carats and is one of
Category

20th Century Unknown Retro Cocktail Rings

Materials

Opal, Fire Opal, Ruby, Gold, 14k 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

3.20 Carat Opal Diamond Yellow Gold Ring
Located in Stamford, CT
1960's Oval opal and diamond ring. 3.20 carat oval cabochon center opal with 4 round and 10 tapered
Category

Mid-20th Century Engagement Rings

Materials

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

Natural Opal Diamond Ring 6.75 14k W Gold 4 TCW Certified
Located in Brooklyn, NY
Natural Fine Quality Opal Diamond Ring 6.75 14k W Gold 4 TCW Certified $4,950 310548 This is a
Category

2010s American Engagement Rings

Materials

Diamond, Opal, Gold

Antique Edwardian Opal Diamond Ring 2.4 Carat Opal Dated 1906
Located in Kendal, GB
A grand antique Edwardian carved half hoop ring adorned with three natural opal cabochons weighing
Category

Antique Early 1900s European Edwardian Engagement Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

David Morris 37.52 Carat Opal 16.05 Carat Diamond Bracelet
By David Morris
Located in Dallas, TX
The exquisite play of color in these stunning opals is a beautiful thing to behold! This bracelet
Category

21st Century and Contemporary English Link Bracelets

Materials

Diamond, Opal, 18k Gold, White Gold

Antique 1.12 Carat Opal and Yellow Gold Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
representation of antique engagement rings. Opal Quality Cut Cabochon Content 1.12 carats Dimensions 8.27mm x
Category

Antique 1890s Unknown Solitaire Rings

Materials

Opal, Yellow Gold

Vintage 4 Opal Drop Pendant Necklace 14k Yellow Gold
Located in Honolulu, HI
3.47 mm, side opals: 8mm x 5mm x 3 mm, bottom opal: 12 mm x 6 mm x 3 mm Opal Carat Weight: ~4.5
Category

21st Century and Contemporary Unknown Modern Pendant Necklaces

Materials

Opal, 14k Gold, Yellow 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

Edwardian Opal and 9 Carat Gold Ring
Located in Chipping Campden, GB
This simple Edwardian opal ring is modelled in 9ct gold. The stone is set in simple claws upon a
Category

Antique Early 1900s British Edwardian More Rings

Materials

Opal, Gold

3.94 Carat Fire Opal Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
The Fire Opal is 3.35 Carats and is surrounded by 26 Round Cut Diamonds that weigh 0.59 Carats
Category

2010s American Contemporary Cocktail Rings

Materials

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

Vintage 2.20 Carat Opal & Diamonds Cluster Ring
Located in Miami, FL
Vintage 2.20 Carat Opal & Diamonds Cluster Ring. Beautiful mesmerizing Opal gemstone with white
Category

Vintage 1970s Cluster Rings

Materials

Diamond, Opal, 14k Gold, Yellow Gold

3.51 Carat Opal Diamond 14 Karat Rose Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a 2.81 Carat Opal that is curated in a unique 14 Karat Rose Gold setting. The setting
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Opal, 14k Gold, Rose Gold

1.78 Carat Fire Opal Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a Cushion Cut 0.85 carat Fire Opal in the center of the ring and is surrounded by 73
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

1950s 7.99 Carat Opal and 0.48 Carat Diamond Platinum Cocktail Ring
Located in Atlanta, GA
1940s Cocktail Ring featuring the most beautiful 7.99 Carat Opal! The opal is held by 4 prongs and
Category

Vintage 1940s Unknown Retro Cocktail Rings

Materials

Diamond, Opal, Platinum

Yellow Gold Opal Cluster Cocktail Ring - 18k Cabochon 7.20ctw Size 5 1/4
Located in Greensboro, NC
Size: 5 1/4 Metal Content: 18k Yellow Gold Stone Information Natural Opals Carat(s): 7.20ctw Cut
Category

21st Century and Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Yellow Gold

2.91 Carat Opal Diamond 18 Karat Yellow Gold Ring
By Roshe Jewels
Located in Los Angeles, CA
2.30 Carats and the measurements of the Opal are 8 mm x 12 mm. The Opal is surrounded by 4 Pink
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Yellow Gold, 18k Gold

1.14 Carat Black Opal and Diamond Platinum Ring
Located in Atlanta, GA
opal is 1.14 carat in weight and is 4-prong set. The opal is accentuated with a halo of round and
Category

Vintage 1970s Unknown Modern Bridal Rings

Materials

Diamond, Opal, Platinum

Vintage Opal and Amethyst 9 Carat Gold Ring
Located in Chipping Campden, GB
This gorgeous ring holds two opals and three amethyst stones. The ring is modelled in 9ct gold and
Category

Vintage 1960s British More Rings

Materials

Amethyst, Opal, Gold

Vintage Opal and 9 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
The opal set up high in a crown style setting is so glossy and throws so much colour! There is an
Category

Vintage 1960s British Modern Solitaire Rings

Materials

Opal, Gold

Important Lightning Ridge 15 Carat Black Opal Diamond Vintage Necklace
Located in Santa Barbara, CA
This stunning black opal and diamond necklace is sure to impress. The nearly 15 carat centerpiece
Category

Vintage 1960s Art Deco Pendant Necklaces

Materials

Black Opal, Diamond, Opal, Platinum

14K White Opal Eternity Ring, Size 4
Located in Miami Beach, FL
with white opals. 4 carats of white opals. Additional Information: Material: 14K White Gold, Stone
Category

21st Century and Contemporary American Band Rings

Materials

Gold

Art Deco Opal and 9 Carat Gold Ring
Located in Chipping Campden, GB
This Superb art deco opal is set in 9ct yellow & white gold. The glossy and colourful stone s set
Category

Vintage 1920s British Art Deco More Rings

Materials

Opal, Gold

Estate 19.95 Carat Mexican Fire Opal Fox Pendant Necklace
Located in Santa Barbara, CA
rose gold with a free form Mexican fire opal weighing an impressive 19.95 carats. Truly one-of-a-kind
Category

1990s Modern Pendant Necklaces

Materials

Diamond, Yellow Diamond, Opal, Fire Opal, Tsavorite, 18k Gold, Rose Gold...

Estate 19.95 Carat Mexican Fire Opal Fox Pendant Necklace
Estate 19.95 Carat Mexican Fire Opal Fox Pendant Necklace
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H 1.75 in W 1.75 in D 0.25 in L 18 in
Superb Natural Opal and 9 Carat Gold Cluster Ring
Located in St Helens, GB
A fine quality opal cluster ring in 9ct gold ring. Set with nine natural opals in a 3x3 grid. 13mm
Category

20th Century Cluster Rings

Materials

Opal, Gold

1960s Vintage 5.81 Carat Opal and Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 5.81 carat opal and 0.30 carat diamond, 9 karat yellow and
Category

Vintage 1960s Cocktail Rings

Materials

Diamond, Opal, White Gold, Yellow Gold

1960s 7.32 Carat Opal Diamond 18 Carat Rose Gold Retro Ring
Located in Poitiers, FR
golden threads that come together to form the base. Total weight of the opal: 7.32 carat Total diamond
Category

Vintage 1960s French Retro Cocktail Rings

Materials

White Diamond, Diamond, Opal, Gold, Rose Gold, 18k Gold

4 Ct Oval Shape Black Australian Opal & Diamond 14 K Yellow Gold Pearl Necklace
Located in New York, NY
Introducing our exquisite 14K Yellow Gold Pearl Necklace featuring a captivating 4 Carat Oval Black
Category

2010s Pendant Necklaces

Materials

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

Yellow Gold Opal & Diamond Pendant Necklace 15 3/4" - 9k & 14k Oval Cab 1.55ctw
Located in Greensboro, NC
Opal Carat(s): 1.54ct Cut: Oval Cabochon Stone Note: Australian Natural Diamond Carat(s): .01ct Cut
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, 9k Gold, Yellow Gold

1.40Ct Cabochon Blue Opal 1.12 Carat Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage French 1.40 carat opal and 1.12 carat diamond, 18 karat yellow gold dress ring
Category

1990s French Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

.80 Carat Pear Opal Yellow Gold Butterfly Mid-Century Pendant Necklace
Located in Stamford, CT
1950's mid-century Filagree opal pendant necklace. 4 pear shaped cabochon greenish/blue opals set
Category

Mid-20th Century Pendant Necklaces

Materials

Opal, Gold, 14k Gold, Yellow Gold

Heinz Postler Brazilian Opal Owl Carving, 1655 Carats, Idar-Oberstein
Located in Los Angeles, CA
skilled craftsmanship and the fact that large, solid pieces of fine opal such as this are rare. Height 4
Category

21st Century and Contemporary Artisan Figurines and Sculptures

Materials

Opal

Vintage Opal and 9 Carat Gold Five-Stone Ring
Located in Chipping Campden, GB
The opals in this ring are gorgeous and throw some great colours. They are set upon an ornate
Category

Vintage 1980s British More Rings

Materials

Opal, Gold

Vintage Opal and 9 Carat Gold Five-Stone Ring
Located in Chipping Campden, GB
The opals in this ring are gorgeous and throw some great colours. They are set upon an ornate
Category

Vintage 1980s British More Rings

Materials

Opal, Gold

4.00 Carat Total Weight Opal Rose Gold Engagement Ring
Located in Atlanta, GA
: Opal Shape: Oval Cabachon Carat Weight: 4 carat, total weight. Color: White with Rainbow Color Play
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

Opal, 14k Gold, Rose Gold

Opal Necklace Natural Australian Opal
Located in Berlin, DE
- 0.16 x 0.35 x 0.87 in / 4 х 9 х 22 mm opal weight - 6.75 carats pendant length - 1.26 in / 32 mm
Category

2010s French Art Nouveau More Necklaces

Materials

Opal, Gold, 14k Gold, Yellow Gold

Antique 1.56 Carat Opal and 2.10 Carat Diamond 18k Yellow Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.56 carat opal and 2.10 carat diamond, yellow gold dress
Category

Vintage 1930s Unknown Cocktail Rings

Materials

Diamond, Opal, Yellow Gold

Aquamarine Opal Dangle Earrings Diamond Setting 16.27 Carats Total
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP All Gemstones are Natural 24 Aquamarines = 9.95 Carats 4
Category

21st Century and Contemporary Art Nouveau Dangle Earrings

Materials

Aquamarine, Diamond, Opal, Silver, Sterling Silver

Victorian 0.50 Carat Opal and 0.33 Carat Diamond 18k Yellow Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.50 carat opal and 0.33 carat diamond, 18 karat yellow gold dress
Category

Antique 1890s Cocktail Rings

Materials

Diamond, Opal, Yellow Gold, Silver

Le Vian 13 Carat Opal Rose Gold Couture Ring
By Le Vian
Located in Great Neck, NY
A gorgeous 13-1/4 carat pear-shaped Neopolitan Opal shimmers from within a contrasting border of
Category

2010s Fashion Rings

Materials

White Diamond, Brown Diamond, Opal, Ruby, 18k Gold, Rose Gold

Vintage Garnet and Opal 9 Carat Gold Cluster Ring
Located in Chipping Campden, GB
This striking ring holds round cut garnets totalling approx 50pts and a shimmering opal at the
Category

Vintage 1970s British Cluster Rings

Materials

Garnet, Opal, Gold

Fire Opal Cabochon Diamonds 18 Carat Yellow Gold Ring
Located in Paris, FR
. Dimensions : 10.10 x 19.47 x 5.49 mm (0.397 x 0.766 x 0.216 inch) Estimated weight of the opal : 3 carats
Category

Early 2000s French Contemporary Band Rings

Materials

Diamond, Fire Opal, Yellow Gold

Yellow Gold Lab-Created Opal & Diamond Bypass Band 14k Inlay .30ctw Ring Sz6 1/4
Located in Greensboro, NC
Size: 6 1/4 Metal Content: 14k Yellow Gold Stone Information Synthetic Opal Cut: Inlay Natural
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Vintage Ruby and Opal 9 Carat Gold Cluster Ring
Located in Chipping Campden, GB
The mix of rubies and opals makes the perfect pretty and feminine colour way. The rubies measure
Category

Vintage 1970s British Cluster Rings

Materials

Opal, Ruby, Gold

Antique Garnet and Opal 9 Carat Gold Cluster Ring
Located in Chipping Campden, GB
This striking ring holds round cut garnets totalling approx 75pts and six shimmering opals. All the
Category

Vintage 1980s British Cluster Rings

Materials

Garnet, Opal, Gold

Vintage Amethyst and Opal 14 Carat Gold Cluster Ring
Located in Chipping Campden, GB
This stunning cluster ring has an amethyst at the centre and has opal petals. In between the petals
Category

Vintage 1980s British Modern Cluster Rings

Materials

Amethyst, Opal, Gold

41-4/5 ct. Emerald-Cut Sky Blue Topaz and Octangle Opal Sterling Silver Bracelet
By Affinity Designs LLC
Located in New York, NY
This stunning bracelet features 44 pieces of brilliant emerald-cut sky blue topaz and octangle opal
Category

2010s Asian Contemporary Modern Bracelets

Materials

Opal, Blue Topaz, Sterling Silver

Vintage Garnet and Opal 9 Carat Gold Cluster Ring
Located in Chipping Campden, GB
This striking ring holds round cut garnets totalling approx 60pts and a shimmering opal at the
Category

Vintage 1970s British Modern Cluster Rings

Materials

Garnet, Opal, Gold

Opal 7.47 Carat Diamonds 18 Karat Yellow Gold Ring
By Mousson Atelier
Located in Bangkok, TH
Opal 7.47 Carat Diamonds 18 Karat Yellow Gold Ring Opals, unlike many other stones, are almost
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Art Deco Platinum Diamond 3.73 Carat Australian Black Opal Engagement Ring
Located in Los Angeles, CA
Opal 3.73 Carats, 6 Tapered Baguette Diamonds, 18 Round Diamonds, G Color SI1 Clarity, 0.69 Carats
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Opal, Black Opal, Platinum

107 Carat Oval Australian Opal, Diamond and Emerald Pendant /Pin/Broach 18K Gold
Located in New York, NY
Carats of brilliant cut diamonds and approximately 4 carats of natural emeralds. The opal is
Category

2010s Pendant Necklaces

Materials

Diamond, Emerald, Opal, 18k Gold

Vintage 10.74 Carat Boulder Opal and Diamond Pendant Necklace
Located in Santa Barbara, CA
Vintage Year: 1990s Metal: Platinum & 18k Yellow Gold Gemstone: Boulder Opal Carat Weight: !0.74 Cut
Category

Late 20th Century Australian Contemporary Pendant Necklaces

Materials

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

Platinum Emerald Cut Diamond 7.14 Carat Oval Australian Black Opal Necklace
Located in Los Angeles, CA
Necklace is 85% Platinum 15% Iridium. Stones- 1 Natural Australian Black Opal 7.14 Carats, 4 Emerald Cut
Category

2010s American Art Deco Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Platinum

AGL 18.92 Carat Black Opal with 25.94 Carat Tsavorite and Diamonds in Platinum
By Kiersten Elizabeth
Located in Charleston, SC
18.92 Carat AGL Certified Black Opal with 16.53 Carats Tsavorite Garnets and 9.41 Carats of
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Opal, Tsavorite, Platinum

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4 Carat Opal For Sale on 1stDibs

Find the exact 4 carat opal you’re shopping for in the variety available on 1stDibs. Frequently made of gold, 18k gold and yellow gold, this item was constructed with great care. You can easily find a 65 antique edition and 143 modern creations to choose from as well. If you’re looking for a 4 carat opal 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. Finding an appealing 4 carat opal — no matter the origin — is easy, but Roshe Jewels, Renata Bernard and DGI each produced a popular version that is worth a look. 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. When shopping for a 4 carat opal, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 4 Carat Opal?

The price for a 4 carat opal starts at $15 and tops out at $78,000 with these rings, on average, selling for $3,400.
Questions About 4 Carat Opal
  • 1stDibs ExpertApril 5, 2022
    Whether or not a 4-carat ring is big is largely a matter of personal opinion. However, 4-carat stones usually do have larger dimensions. Diamonds of this size are usually quite expensive due to their size. Shop a large selection of gemstone rings on 1stDibs.
  • 1stDibs ExpertSeptember 28, 2021
    A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.