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Rose Gold Natural Opal Diamond Ring
Located in Palm Desert, CA
14 Karat Rose Gold natural untreated Opal with Diamond Halo Ring. Opal is 14 x 11.5 x 5mm and has a
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Opal, Gold, 14k Gold, Rose Gold

14K Gold Ring Genuine Opal Diamond Halo IAG Certified Gemstones woman´s ring
Located in MADRID, ES
statement piece. Genuine, untreated opal, certified diamonds, and alluring details. Shop now for a touch of
Category

21st Century and Contemporary Spanish Contemporary Cocktail Rings

Materials

Diamond, Opal, 14k Gold, Rose Gold

24.11ct Natural Solid Untreated Black Boulder Opal
Located in MAIN BEACH, QLD
sourced, and internationally guaranteed untreated natural opals of impeccable quality. — Fast and highly
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

7.88ct Natural Untreated Australian Boulder Opal
By Renata Bernard
Located in Sydney, AU
Australia is the birthplace of the most beautiful precious opal gemstones in the world. Fine
Category

2010s Australian Contemporary Loose Gemstones

Materials

Opal

7.88ct Natural Untreated Australian Boulder Opal
7.88ct Natural Untreated Australian Boulder Opal
Free Shipping
W 0.44 in D 0.18 in L 0.79 in
Natural Untreated Premium Quality 2.43ct Australian Black Opal
By Renata Bernard
Located in Sydney, AU
Australia is the birthplace of the most beautiful precious opal gemstones in the world. Fine
Category

2010s Australian Contemporary Loose Gemstones

Materials

Black Opal, Opal

Natural Untreated Premium Quality 2.43ct Australian Black Opal
Natural Untreated Premium Quality 2.43ct Australian Black Opal
Free Shipping
W 0.32 in D 0.16 in L 0.54 in
Natural Untreated Premium Quality 2.16ct Australian Black Opal
By Renata Bernard
Located in Sydney, AU
Australia is the birthplace of the most beautiful precious opal gemstones in the world. Fine
Category

2010s Australian Contemporary Loose Gemstones

Materials

Opal, Black Opal

'Black Galaxy' 99.60ct Natural Solid Untreated Australian Black Opal
Located in MAIN BEACH, QLD
choosing ethical, sustainably sourced, and internationally guaranteed untreated natural opals of impeccable
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Natural Untreated Australian Boulder Opal Necklace in Sterling Silver
By Renata Bernard
Located in Sydney, AU
The regally sizeable ‘Cordelia’ boulder opal necklace set in sterling silver has style and
Category

2010s Australian Contemporary Multi-Strand Necklaces

Materials

Opal, Sterling Silver

Natural Untreated Australian 32.73ct Boulder Opal Pendant Necklace 18K Gold
Located in Sydney, AU
, untreated boulder opal from the opal field known for many types of opals, including “Galaxy,” the largest
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Yellow Gold, 18k Gold

Natural Untreated Australian 0.35ct Black Opal Pendant Necklace 18K White Gold
By Renata Bernard
Located in Sydney, AU
The 'Swan' pendant represents the elegance and strength of this rare bird. Lovely black opal
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold, White Gold

Natural Untreated Australian 2.07ct Black Opal Pendant Necklace 18K White Gold
By Renata Bernard
Located in Sydney, AU
Full of strength and bravery is the wearer of the "Karleen" opal pendant, featuring an intriguing
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold, White Gold

Solid Natural Untreated Australian 13.95 Black Opal Ring 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
The ‘Azure Window’ ring presents a unique and mesmerising opal gemstone within a classic and
Category

2010s Australian Contemporary Engagement Rings

Materials

Black Opal, Opal, Yellow Gold, 18k Gold

Australian Natural Untreated 12.84ct Black Opal Diamond Drop Earrings 18K Gold
By Renata Bernard
Located in Sydney, AU
The first blossoms of spring inspired the creation of “Snowdrops” opal earrings. This perfect
Category

2010s Australian Contemporary Drop Earrings

Materials

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

Natural Untreated Australian 7.91ct Black Opal Earrings in 18K White Gold
By Renata Bernard
Located in Sydney, AU
Art Deco inspired yet utterly contemporary, “Te Amo” opal earrings recall the glamour of the 1920s
Category

2010s Australian Contemporary Dangle Earrings

Materials

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

Natural Untreated Australian 4.34ct Boulder Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
"Today, Tomorrow, Always" presents a stunning and exquisite Australian opal gemstone. It carries a
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, Black Opal, 18k Gold, Yellow Gold

Solid Natural Untreated Australian 2.16ct Black Opal Ring 18k White Gold
By Renata Bernard
Located in Sydney, AU
The ‘Florence’ opal ring features a simple and elegant design. Masterfully crafted in our elegant
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, Black Opal, 18k Gold, White Gold

Australian Natural Untreated Boulder Opals Necklace in 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
of stunning boulder opals (0.77ct) ethically sourced from our Jundah-Opalville, Queensland mines. Set
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 16.30ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
A romantic and glamorous statement piece the ‘Love Walked In’ opal pendant features an electrifying
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 2.14ct Black Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
Symbolising the rustic beauty and perfect harmony of nature's colours, the "Stolen Beauty" opal
Category

2010s Australian Contemporary Cocktail Rings

Materials

Black Opal, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 1.14ct Black Opal Ring in 18K White Gold
By Renata Bernard
Located in Sydney, AU
"Karina" opal ring is strikingly honest and powerful. It is all about the quality of its precious
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, Black Opal, White Gold, 18k Gold

Natural Untreated Australian 20.69ct Boulder Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
The "Opal Nights" ring sparkles and shines, alternating between dark and mysterious and then light
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, Black Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 6.65ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
Extremely romantic and glamorous, ‘Madame Butterfly’ opal pendant features an attractive and
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 9.50ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
The impressive ‘You Make My Dreams’ boulder opal pendant (9.50ct) exudes modern elegance and is
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Diamond, 18k Gold, White Gold

Natural Untreated Australian 22.45ct Boulder Opal Pendant Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
The “Special Vision” opal pendant is quite the eye-catching piece featuring a gracious boulder opal
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, Yellow Gold, 18k Gold

Natural Untreated Australian 1.62ct Black Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
A symbol for never-ending beauty of colours "Rainbow-coloured dream" opal ring features an
Category

2010s Australian Contemporary Cocktail Rings

Materials

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

Natural Untreated Australian 2.83ct Black Opal Ring 18 Karat White Gold
By Renata Bernard
Located in Sydney, AU
“Fire and Desire” black opal ring epitomises the paradox of passionate love. This exceedingly rare
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, Blue Sapphire, Black Opal, White Gold, 18k Gold

Natural Untreated Australian 11.16ct Boulder Opal Pendant Necklace 18K Gold
Located in Sydney, AU
Simple yet alluring, the ‘Amdis’ boulder opal pendant (11.16ct) is a minimal 18K white gold
Category

2010s Australian Contemporary Pendant Necklaces

Materials

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

Solid Natural Untreated Australian 2.57ct Black Opal Ring in 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
The graceful and exquisite ‘Love at First Kiss’ ring features an immaculate black opal (2.57ct
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, Black Opal, 18k Gold, Yellow Gold

Natural Untreated Australian Boulder Opals Necklace Set In 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
'There Are Fairies at The Bottom of My Garden' opal necklace represents the Australian wattle and
Category

1990s Australian Romantic Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 19.46ct Boulder Opal Ring in 18k White Gold
By Renata Bernard
Located in Sydney, AU
is a solid, untreated boulder opal from the opal field known for many types of opals, including
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, White Gold

Solid Natural Untreated Australian 3.85ct Black Opal Ring in 18k White Gold
By Renata Bernard
Located in Sydney, AU
The ‘Midnight Kiss’ opal ring features a graceful and unique design. Masterfully handcrafted in our
Category

2010s Australian Contemporary Engagement Rings

Materials

Black Opal, Opal, White Gold, 18k Gold

Natural Untreated Australian 5.43ct Boulder Opal Pendant Necklace 18 Karat Gold
By Renata Bernard
Located in Sydney, AU
Absolutely ethereal and breathtaking is the wearer of the Elysium boulder opal (5.43ct) pendant
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Gold

Natural Untreated Australian 7.89 Carat Boulder Opal Pendant Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
‘Garden of Imagination’ is a jewel for the self-assured and independent woman. This opal pendant
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated 5.08ct Australian Black Opal Diamond Ring in 18K White Gold
By Renata Bernard
Located in Sydney, AU
A sensual and romantic charm imbues the 'Silhouette of Desire' opal ring featuring an impressive
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, Black Opal, White Gold, 18k Gold

Natural Untreated Australian 6.87ct Boulder Opal Pendant Necklace 18K Rose Gold
By Renata Bernard
Located in Sydney, AU
'My Cherie Amour' opal pendant is an expression of true love. The masterly angulated boulder opal
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

Natural Untreated Australian 0.23ct Black Opal and Diamond Ring 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
"Australian Daisy" opal ring presents a classic elegance look. It carries an impeccable black opal
Category

2010s Australian Contemporary Cocktail Rings

Materials

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

Natural Untreated Australian 5.07ct Boulder Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
Vivid and guaranteed to be a show-stopper, the "Miss Curious" opal ring features an electrifying
Category

2010s Australian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 13.16ct Boulder Opal Cufflinks in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
"The Godfather" opal cufflinks present gorgeous vivid blue boulder opals (13.16ct) sourced from
Category

2010s Australian Contemporary Cufflinks

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 4.99ct Boulder Opal Pendant Necklace 18K Rose Gold
By Renata Bernard
Located in Sydney, AU
"Josephine" opal pendant is named after Josephine Baker. Like her, it is strong and defined
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

Natural Untreated Australian 2.65Ct Boulder Opal Diamonds Halo Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
Designed by Renata Bernard, ‘Affection’ opal pendant was inspired by unconditional properties of
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 10.96ct Boulder Opal Earrings in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
“Constellations” opal earrings capture the ethereal beauty of the night sky. This perfect pair of
Category

2010s Australian Contemporary Dangle Earrings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 9.19ct Boulder Opal Earrings in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
"Strictly Ballroom" opal earrings are a subdued take on an Australian cinema classic. Magnificent
Category

2010s Australian Contemporary Dangle Earrings

Materials

Diamond, Opal, Yellow Gold, 18k Gold

Natural Untreated Australian 10.87ct Boulder Opal Dangle Earrings 18K White Gold
By Renata Bernard
Located in Sydney, AU
“Sunnfjord” opal earrings celebrate Norway’s majestic fjords. Bright as a Norwegian seascape
Category

2010s Australian Contemporary Dangle Earrings

Materials

Diamond, Opal, 18k Gold, White Gold

Australian Natural Untreated 17.53ct Pipe Opal Diamond Cocktail Ring 18K Gold
By Renata Bernard
Located in Sydney, AU
Mysterious and magical, “Deep Love” opal ring is evocative of an ocean dive on a lazy summer day. A
Category

2010s Australian Contemporary Cocktail Rings

Materials

Diamond, Opal, Yellow Gold, 18k Gold

Natural Untreated Australian 10.25ct Boulder Opal Diamond Ring 18K White Gold
By Renata Bernard
Located in Sydney, AU
“Amor de mi Vida” opal ring is destined to be the love of your life. A spectacular multicoloured
Category

2010s Australian Contemporary Cocktail Rings

Materials

Diamond, Opal, White Gold, 18k Gold

Natural Untreated Australian Pipe Opal/Diamond Engagement Ring 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
The centrepiece of our “Santa Barbara” opal ring is a 1.57 carat natural light opal from our own
Category

2010s Australian Contemporary Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 4.94ct Boulder Opal Ring in 18K White Gold
By Renata Bernard
Located in Sydney, AU
Let “Rain Queen” opal ring cast her rainbow spell on you. The 4.94 carat multicolour opal from
Category

2010s Australian Contemporary Cocktail Rings

Materials

Diamond, Opal, 18k Gold, White Gold

Natural Untreated Australian 5.19 Carat Boulder Opal Pendant Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
boulder opal (5.19ct). The natural gemstone sourced from Winton mines in Queensland, Australia, is
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Yellow Gold, 18k Gold, White Gold

Natural Untreated Australian 8.72ct Boulder Opal Earrings in 18 K Yellow Gold
By Renata Bernard
Located in Sydney, AU
“Waltz of the Flowers” opal earrings present gorgeously colourful Winton boulder opals (8.72ct
Category

2010s Australian Contemporary Dangle Earrings

Materials

Opal, 18k Gold, Yellow Gold

Solid Natural Untreated Australian 1.38ct Boulder Opal Ring in 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
Symbolising wisdom, the ‘Sophie’ engagement opal ring features an elegant boulder opal (1.38ct
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, 18k Gold, Yellow Gold

Solid Natural Untreated Australian 1.35ct Boulder Opal Ring in 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
Simple yet elegant, the ‘Crystal Cascade’ opal ring features a boulder opal (1.35ct) ethically
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 3.77ct Natural Boulder Opal Ring in 18K White Gold
Located in Sydney, AU
Captivating in its entirety, the 'Uncharted Seas' opal ring presents an impressive boulder opal
Category

2010s Australian Contemporary Fashion Rings

Materials

Opal, 18k Gold, White Gold

Natural Untreated Australian 12.56ct Opal Drop Earrings in 18K Yellow White Gold
By Renata Bernard
Located in Sydney, AU
Striking and utterly beguiling, “Amor Eterno” opal earrings are impossible to miss. Natural boulder
Category

2010s Australian Contemporary Dangle Earrings

Materials

Opal, White Gold, 18k Gold, Yellow Gold

Australian Natural Untreated 4.21ct Boulder Opal Ring 18K White Gold Rose Gold
By Renata Bernard
Located in Sydney, AU
striking 4.21 carat boulder opal is embraced by an unusual rose and white gold twist. The ribbon-flash
Category

2010s Australian Contemporary Engagement Rings

Materials

Opal, 18k Gold, Rose Gold, White Gold

4.40 Carat Natural Yellow Opal
Located in Hua Hin, TH
An alluring 4.40 oval-cut Yellow Opal Weight: 4.40 Carats Shape: Oval Crown: Modified Brilliant
Category

2010s Unknown Loose Gemstones

Materials

Opal

4.40 Carat Natural Yellow Opal
4.40 Carat Natural Yellow Opal
Free Shipping
W 0.42 in D 0.31 in L 0.51 in
Art Deco Opal & Diamond Ring Certified
Located in Southbury, CT
ring ships with a certificate from Stone Group Labs certifying that this is an untreated crystal opal
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, Opal, 18k Gold, White Gold

Opal Pink Sapphires Gold Ring Promise Wedding Ring
Located in Berlin, DE
incredible play-of-color rainbow. This hand-selected Opal is natural, untreated, and weighs 0.60 carats. A
Category

2010s French Artisan Wedding Rings

Materials

Black Opal, Pink Sapphire, Sapphire, Opal, White Gold, 18k Gold, Gold

GIA 2.79ct Natural Black Opal Diamond Platinum Ballerina Cocktail Ring
Located in Miami, FL
Black Opal, natural and untreated, double cabochon oval cut, prong set, weight approximately 2.79 carats
Category

1990s Retro Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

Art Nouveau Boulder Opal Pearl & Sapphire Necklace
Located in Santa Barbara, CA
beautiful designs in history. This boulder opal necklaces encompasses all of the classic elements. Centering
Category

Antique 1890s Art Nouveau Pendant Necklaces

Materials

Opal, Pearl, Sapphire, 18k Gold, Yellow Gold

Dark Opal Pink Sapphires gold ring Engagement Azalea Flower
By Alexey Gabilo
Located in Berlin, DE
incredible play-of-color rainbow. This hand-selected Opal is natural, untreated, and weighs 0.60 carats. A
Category

2010s French Artisan Engagement Rings

Materials

Black Opal, Sapphire, Pink Sapphire, Opal, White Gold, 18k Gold, Gold

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Untreated Opal For Sale on 1stDibs

Surely you’ll find the exact untreated opal you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. You can easily find a 6 antique edition and 73 modern creations to choose from as well. Making the right choice when shopping for an untreated opal may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th 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 untreated opal — no matter the origin — is easy, but Renata Bernard and Merkaba 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. There aren’t many items for men if you’re seeking an untreated opal, as most of the options available are for women and unisex.

How Much is a Untreated Opal?

Prices for an untreated opal can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $900 and can go as high as $38,000, while this accessory, on average, fetches $7,100.