Skip to main content

Opal 18k

79
to
776
4,201
2,452
2,325
1,250
477
474
452
255
174
145
50
42
11
11
8
8
5
5
4
19
373
1,853
5,622
179
101
92
85
42
69
130
182
130
78
11
301
196
113
89
87
5,611
2,226
72
7,845
64
7,715
7,126
2,905
1,515
510
6,308
4,829
963
515
476
7
2
1423
977
855
658
365
to
Sort By
Fire Opal 18k Gold Diamond Unicorn Ring
By Kristin Hanson
Located in Rhinebeck, NY
Fire Opal 18k Gold Diamond Unicorn Ring. Handcrafted designer ring in 18k yellow gold with 11.06ct
Category

21st Century and Contemporary North American Modern Cocktail Rings

Materials

Diamond, Opal, Fire Opal, 18k Gold

Stambolian Peruvian Pink Opal 18K Yellow Gold and White Enamel Cocktail Ring
By Stambolian
Located in Boca Raton, FL
Stambolian Peruvian Pink Opal 18K Yellow Gold and White Enamel Cocktail Ring From the Stambolian
Category

21st Century and Contemporary American Cocktail Rings

Materials

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

5.47ct Black Opal & 18K Gold Necklace
Located in MAIN BEACH, QLD
Opal Type: Black Opal Opal Weight: 5.47ct Opal Origin: Lightning Ridge, NSW, Australia Metals: 18K
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Black Opal, Opal, 18k Gold

Opal 18K Yellow Gold Surrealist Unisex Single Surrealist Earring
By Rossella Ugolini
Located in Rome, IT
Rossella Ugolini "Opal" Collection a single Opal stud Unisex Modern earring handcrafted in 18
Category

2010s Italian Modern Stud Earrings

Materials

Opal, 18k Gold, Yellow Gold, Rhodium

Australian 6.52ct Crystal Opal & 18K Gold Ring
Located in MAIN BEACH, QLD
As blue as a tropical ocean and as magical as the aurora borealis, this amazing dark crystal opal
Category

21st Century and Contemporary Australian Art Deco Cocktail Rings

Materials

Black Opal, Opal, Diamond, 18k Gold

Australian 10.70ct Light Opal & 18K Gold Necklace
Located in MAIN BEACH, QLD
choker is included with solid 18K gold and Platinum cables. SPECIFICATIONS Opal Type: Light Opal Opal
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

Australian 61.79 Crat Boulder Opal & 18k Gold Necklace
Located in MAIN BEACH, QLD
. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 61.79ct Opal Origin: Winton, QLD, Australia Metals: 18K
Category

2010s Australian Pendant Necklaces

Materials

Opal, 18k Gold

16.92 Carat Australian Boulder Opal & 18k Gold Earrings
Located in MAIN BEACH, QLD
: 16.92 ct Setting: 18K solid Gold THE GRYFFIN OPAL DIFFERENCE By investing in solid Australian opal
Category

2010s Australian Dangle Earrings

Materials

Opal, 18k Gold

16.47 Carat Australian Boulder Opal & 18k Gold Earrings
Located in MAIN BEACH, QLD
18K solid gold as they deserve no less. SPECIFICATIONS Opal Type: natural solid Australian Boulder
Category

2010s Australian Dangle Earrings

Materials

Opal, 18k Gold

Australian 4.41ct Crystal Opal, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
Like a tropical sea, this opal ring sparkles with life. Set in 18K solid gold and platinum, it's a
Category

Late 20th Century Australian Cocktail Rings

Materials

Opal, Diamond, Platinum, 18k Gold

Nomad Doublet Opal 18k Yellow Gold Stud Earrings
By Nina Wynn
Located in Denver, CO
Calling all globe trotters! This brightly polished 18k gold solitaire design of gold stud earrings
Category

21st Century and Contemporary Vietnamese Contemporary Stud Earrings

Steven Battelle 11.3 Carats Boulder Opal 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
from the Quilpie opal fields in Queensland, Australia. This completely hand fabricated 18K gold ring
Category

21st Century and Contemporary Balinese Contemporary Cocktail Rings

Materials

Opal, 18k Gold

Steven Battelle 2.3 Carats Ethiopian Opal 18k Gold Earrings
By Steven Battelle
Located in Soquel, CA
Two green, red, and yellow flashing 7 x 9 mm cushion shaped "Welo" mine faceted Ethiopian opals
Category

21st Century and Contemporary Balinese Contemporary Drop Earrings

Materials

Opal, 18k Gold

Steven Battelle 0.8 Carats Ethiopian Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
A fiery round 7 mm faceted Welo mine Ethiopian Opal is set in a delicate handmade "spiral with
Category

21st Century and Contemporary Balinese Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

Opal 18K Gold Italian Mesh Chain Surrealist Pendant Necklace
By Rossella Ugolini
Located in Rome, IT
. Suspended from the necklace is a beautiful triangular flat opal, nestled within an 18K yellow gold bezel
Category

2010s Italian Modern Drop Necklaces

Materials

Opal, Yellow Gold, Gold, 18k Gold

1.95 Carat Australian Crystal Opal & 18k Rose Gold Necklace
Located in MAIN BEACH, QLD
A very pretty necklace with an equally beautiful crystal opal. This necklace is solid 18k rose gold
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

1.95 Carat Australian Crystal Opal & 18k Rose Gold Necklace
1.95 Carat Australian Crystal Opal & 18k Rose Gold Necklace
Free Shipping
W 0.44 in D 0.17 in L 0.86 in
Tanzanite and Opal 18K Yellow Gold Ring, Sam Shaw
Located in Aspen, CO
Fine blue Tanzanite and an orange fire opal ring set into a modernist 18K yellow gold ring. The
Category

21st Century and Contemporary American Modernist Cocktail Rings

Materials

Opal, Tanzanite, 18k Gold, Yellow Gold

Steven Battelle 27.3 Carats Koroit Boulder Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
A nice 18 x 29 mm oval harlequin Koroit boulder opal with nearly every rainbow color displayed is
Category

21st Century and Contemporary Balinese Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

Steven Battelle 1.5 Carats Ethiopian Opal 18K Gold Wire Earrings
By Steven Battelle
Located in Soquel, CA
Two nicely matched 7 mm round cabochons of Welo mine Ethiopian opal are set in delicate handmade
Category

21st Century and Contemporary Balinese Contemporary Drop Earrings

Materials

Opal, 18k Gold

Steven Battelle 33.4 Carats Australian Boulder Opal 18K Gold Bracelet
By Steven Battelle
Located in Soquel, CA
Seven irregular cut cabochons of shimmering blueish and purplish Australian boulder opal from the
Category

21st Century and Contemporary Balinese Modern Bracelets

Materials

Opal, 18k Gold

Necklace set with opal 18k yellow gold - 53 cm long
Located in The Hague, ZH
18k yellow gold necklace with a center piece set with fire opal – 53 cm long Detailed description
Category

2010s Dutch Modern Choker Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Necklace set with opal 18k yellow gold - 53 cm long
Necklace set with opal 18k yellow gold - 53 cm long
Free Shipping
H 2.05 in W 1.58 in L 20.87 in
Steven Battelle 32.1 Carats Indonesian Blue Opal 18K Gold Pendant
By Steven Battelle
Located in Soquel, CA
matte-finish 18K gold in this ultimately simple and classic piece. Indonesian blue opal is a type of
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Opal, 18k Gold

Steven Battelle 9.1 Carats Australian Boulder Opal 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A beautiful electric blue and green approximately 15 x 17 mm triangular Australian boulder opal
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Opal, 18k Gold

Boulder Opal 18K Gold Silver Pendant Natural Multi-Colour Australian Gemstone
Located in Berlin, DE
18K yellow gold plated and matte finish silver pendant with natural Boulder Opal opal origin
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Gold Plate, Silver, 18k Gold

Japanese 1800's Silver Samurai Coin Ethiopian Opal 18K Gold Earrings
By Steven Battelle
Located in Soquel, CA
waning days of their power 1837-1854, are set in matte-finish 18K bezels below 4 mm cabochon Ethiopian
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Opal, 18k Gold

Australian 7.27ct Boulder Opal & 18k Gold Earrings with Detachable Diamond Studs
Located in MAIN BEACH, QLD
Metals: 18K solid Gold THE GRYFFIN OPAL DIFFERENCE By investing in solid Australian opal jewellery by
Category

Late 20th Century Australian Drop Earrings

Materials

Diamond, Opal, 18k Gold

Steven Battelle 11.5 Carats Rainbow Moonstone Ethiopian Opal 18K Gold Earrings
By Steven Battelle
Located in Soquel, CA
" mine greenish Ethiopian opals set in simple matte-finish 18K gold in this classically simple
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Opal, Rainbow Moonstone, 18k Gold

Chandeliers Diamond Pink Sapphire Opal 18K Yellow Gold Earrings For Her
By Natkina
Located in Montreux, CH
Earrings Yellow 18K Gold Diamonds 0.63 ct Pink Sapphires 14.74 ct White Opal 9.43 ct Weight 12
Category

21st Century and Contemporary Swiss Modern Stud Earrings

Materials

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

Steven Battelle 15.1 Carats Emerald Ethiopian Opal 18K Gold Post Earrings
By Steven Battelle
Located in Soquel, CA
unrepeatable, 18K gold earrings. The opals are surrounded by "spirals and jawan" gold wire motif, which also
Category

21st Century and Contemporary Balinese Contemporary Drop Earrings

Materials

Emerald, Opal

Australian Opal 18K Gold ring, wife birthday gift, special person gift wedding
Located in Berlin, DE
18K yellow gold ring with natural Opal opal origin - Australia opal measurements - 0.16 х 0.16 х
Category

2010s French Artisan Engagement Rings

Materials

Opal, Yellow Gold, 18k Gold, Gold

1.77 Carat Total Weight Lightning Ridge Opal 18k Yellow Gold Bypass Ring
Located in Houston, TX
18 karat yellow gold. The Lightning Ridge opals are very beautiful and as they hit the light, the
Category

21st Century and Contemporary American Fashion Rings

Materials

Opal, 18k Gold, Yellow Gold

15.70 Carat Total Weight Oval Shaped Lightning Ridge Opals 18k Gold Bracelet
Located in Houston, TX
This unique bracelet features eleven oval shaped white multicolored opals from the Lightning Ridge
Category

21st Century and Contemporary American Link Bracelets

Materials

Diamond, Opal, 18k Gold, White Gold

Boulder Opal 18K Gold Silver Ring Natural Blue opal gemstone gift for wife
Located in Berlin, DE
Matte finish silver 18K gold plated ring with fine quality blue Boulder Opal gemstone origin
Category

2010s German Artist Cocktail Rings

Materials

Opal, Gold Plate, Silver, 18k Gold

French 1960s 8.08 Carats Purple Jelly Opal 18 K Rose Gold Retro Cocktail Ring
Located in Poitiers, FR
Ring in 18 karat rose gold, eagle head hallmark. An incredible vintage ring, its airy setting is
Category

Vintage 1960s French Retro Solitaire Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

Renaissance Revival Jelly Opal & 18K Gold Cross with Blue Enamel - Circa 1880's
Located in Chatham, CA
Antique Renaissance Revival gem set 18K yellow gold Latin cross pendant with 16 rare semi black
Category

Antique Late 19th Century American Renaissance Revival Pendant Necklaces

Materials

Opal, 18k Gold, Enamel

Art Nouveau Opal 18k Gold Leaves and Branch Finely Detailed Edwardian Pin Brooch
Located in North Attleboro, MA
Stunning antique 18k yellow gold leaf and branch brooch with a gorgeous cabochon opal. The opal has
Category

Antique Early 19th Century Unknown Art Nouveau Brooches

Materials

Opal, 14k Gold, 18k Gold, Rose Gold, Yellow Gold

White Opal and Diamond White Gold Pendant
Located in New York, NY
A lively white pear shape opal 18K white gold pendant with .30Ct of brilliant white diamonds.
Category

2010s Pendant Necklaces

Materials

Diamond, Opal

4.35ct Opal Ring With Diamonds Made In 18 Karat Yellow Gold
By Artisan NYC
Located in New York, NY
Artisan's beautiful and One-of-A-Kind Diamond Opal 18K Yellow Gold Ring in size 7. 18k Gold
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Golden Hill Turquoise & Australian Boulder Opal 18 Karat Gold Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
Golden Hill Turquoise from Kazakhstan and Australian Boulder Opal 18k yellow gold dangle earrings
Category

2010s American Contemporary Dangle Earrings

Materials

Turquoise Matrix, Multi-gemstone, Opal, Turquoise, Gold, 18k Gold, Yello...

Multi Shape Opal Diamond Bangle Bracelet 94.8 Grams 18 Karat Rose Gold 500 CTS
By Harbor Diamonds
Located in New York, NY
weight 94.8 g. Approximately 500 Carats of Light Pink Opals 18K rose gold
Category

21st Century and Contemporary Italian Contemporary Bangles

Materials

Diamond, Opal, 18k Gold, Rose Gold

Pear Shape Mexican Opal 18 Karat Yellow Gold Diamond Wide Cigar Band Ring
Located in Boca Raton, FL
Pear Shape Mexican Opal 18K Yellow Gold Diamond Wide Cigar Band Ring Apprx. 2.50 carat Mexican
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Carved Citrine Drop Opal 18 Karat Gold Earrings
By Giulia Colussi
Located in Milan, IT
Carved Citrine Drop Opal 18 k Gold gr. 6,40. All Giulia Colussi jewelry is new and has never been
Category

2010s Italian Artisan Dangle Earrings

Materials

Citrine, Opal, 18k Gold

Rose Quartz Horizon Ring in 18k Rose Gold with Diamond Bezel & Opal Cluster
By Karma El Khalil
Located in New York, NY
. 18k Rose Gold Rose Quartz Opals White Diamonds From Karma El Khalil's Rock Hall Collection
Category

2010s American Contemporary Cocktail Rings

Materials

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

Opal 18 Karat Gold Jasper Earrings
By Giulia Colussi
Located in Milan, IT
Cabochon fire opal 18 k Gold gr 10,20 Earrings with a Picasso jasper. All Giulia Colussi jewelry is
Category

2010s Italian Artisan Dangle Earrings

Materials

Opal, 18k Gold

Ancient Coin, Turquoise, Opal & Tourmaline 18 Karat Gold Dangle Earrings
By Vicki Orr Designs
Located in Naples, FL
, Citrine, and Australian Boulder Opal 18k yellow gold asymmetrical dangle earrings. Ancient Roman coin is
Category

2010s American Contemporary Dangle Earrings

Materials

Tourmaline, Turquoise Matrix, Turquoise, Opal, Multi-gemstone, Citrine, ...

Marquise Opal Round Diamond Gold Wire Cocktail Ring
Located in Stamford, CT
1950's opal and diamond ring. 3.50ct Marquise cut center opal, 18k yellow gold handmade wire
Category

Mid-20th Century Cocktail Rings

Materials

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

Louis Comfort Tiffany Black Opal and Plique a Jour Brooch
By Louis Comfort Tiffany
Located in Riverdale, NY
Tiffany with Julia Munson in 18k gold. Large peacock Black Opal round measuring .75" x 5/8" is surrounded
Category

Antique Early 1900s American Art Nouveau Brooches

Materials

Opal, 18k Gold

Black Opal Pin Brooch 18K Yellow Gold Hand Made
Located in Dearborn, MI
Genuine Black Opal 18K Yellow Gold Pin Brooch Hand Made Features a Fiery 12 x 11.7mm Black Opal
Category

2010s Brooches

Materials

Opal, Black Opal, 18k Gold, Yellow Gold

3ct Fine Australian White Opal Oval Cabochon 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Australian Cooper Pedy White Opal 18k Yellow Gold Solitaire Pendant Necklace. 3.00 Carat
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

Natural 3.55ct Australian Opal Pear Cabochon 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Australian Cooper Pedy White Opal 18k Yellow Gold Solitaire Pendant Necklace. 3.55 Carat
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

13.10 Carat Opal 18 Karat Solid White Gold Diamond Ring
Located in Los Angeles, CA
13.10 Carat Opal 18K Solid White Gold Diamond Ring Item Type: Ring Item Style: Cocktail Material
Category

2010s American Cocktail Rings

1960s Diamond Fire Opal 18 Karat Gold Deco Wide Bracelet
Located in Miami, FL
Shine vividly with this stunning vintage Art Deco Design Diamond Fire Opal 18K Gold Deco Wide
Category

Vintage 1960s American Art Deco Link Bracelets

Materials

Diamond, 18k Gold, Gold

Ocean Blue Opal Ring Gold Australian Blue Opal Statement Ring
By Alexey Gabilo
Located in Berlin, DE
Large Boulder Opal 18K white gold and blackened silver ring Opal origin - Australia stone
Category

2010s French Art Nouveau Cocktail Rings

Materials

Opal, Sterling Silver, 18k Gold, White Gold, Silver

Ocean Blue Opal Ring Gold Ivy collection Australian Blue Opal Indigo
By Alexey Gabilo
Located in Berlin, DE
Large Boulder Opal 18K white gold and blackened silver ring Opal origin - Australia stone
Category

2010s French Art Nouveau Cocktail Rings

Materials

Opal, Gold, Sterling Silver, Silver, White Gold, 18k Gold

Australian Opal Yellow Gold Engagement Ring
Located in Berlin, DE
Australian precious Opal 18K Yellow Gold Ring opal origin - Australia opal measurements - 0.28 x
Category

2010s German Artisan Solitaire Rings

Materials

Opal, 18k Gold, Yellow Gold

Australian Opal White Gold Pendant Raw Uncut Iridescent Lavender Purple Gemstone
Located in Berlin, DE
Australian Opal 18k white gold pendant opal origin - Australia opal measurements - 0.94 х 0.98 in
Category

2010s French Artisan Pendant Necklaces

Materials

Crystal, Opal, Gold, 18k Gold, White Gold

3.55ct Cabochon Cut Opal and 2.68ct Diamond Yellow Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning 3.55 carat white opal and 2.68 carat diamond, 18 karat yellow gold and 18 karat white
Category

Late 20th Century British Engagement Rings

Materials

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

Natural Australian 7.43ct Boulder Opal and Diamond Cocktail Ring 18k Yellow Gold
By Opal Minded
Located in Sydney, AU
) Setting length: 67.37mm Metal: 18K Yellow Gold This opal ring arrives in a gun-metal aluminium box
Category

2010s Australian Contemporary Cocktail Rings

Materials

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

Natural Australian 10.97ct Black Opal and Diamonds Cocktail Ring 18K Yellow Gold
By Opal Minded
Located in Sydney, AU
: 22.72mm Setting width: 15.92mm Metal: 18K Yellow Gold This opal ring arrives in a gun-metal aluminium
Category

2010s Australian Contemporary Cocktail Rings

Materials

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

Opal Diamond 18 K Pendant Clip
Located in Bad Kissingen, DE
18 k yellow gold hallmarked 750 6,84 ct opal 0,90 ct diamonds weight 9,6 gram size 40 x 20 mm
Category

21st Century and Contemporary German Pendant Necklaces

Materials

18k Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "Opal 18k", and we’ll notify you when there are new listings in this category.

Opal 18k For Sale on 1stDibs

Find the exact opal 18k 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 1457 antique edition and 2397 modern creations to choose from as well. If you’re looking for an opal 18k from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating an opal 18k has been a part of the legacy of many jewelers, but those produced by Meghna Jewels, Renata Bernard and Laura Dalben are consistently popular. Today, if you’re looking for a cabochon version of this piece and are unable to find the perfect match, our selection also includes oval cut and round cut alternatives. Most of our opal 18k for sale are for women, but there are 892 pieces available to browse for men.

How Much is a Opal 18k?

On average, an opal 18k at 1stDibs sells for $4,801, while they’re typically $199 on the low end and $385,000 for the highest priced versions of this item.