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Antique Boulder Opal

Edwardian Boulder Opal Necklet Circa 1910-1920s
Located in ADELAIDE, SA
Boulder opal fob with a spectacular colour exchange seen from every angle of this beauty. Gemstone: One
Category

1910s Australian Edwardian Antique Boulder Opal

Materials

Opal, 15k Gold

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

1890s Art Nouveau Antique Boulder Opal

Materials

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

Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
Located in BELCONNEN, ACT
A lovely oval Australian boulder opal with darker green and blue colors. This natural solid
Category

15th Century and Earlier Australian Antique Boulder Opal

Materials

Opal

Antique Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
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W 0.56 in D 0.15 in L 0.78 in
Victorian Carved Boulder Opal 14 Karat Gold Stickpin
Located in Philadelphia, PA
Featuring a deeply carved boulder opal to depict a face topped by a bow Matrix is reddish brown in
Category

Mid-19th Century Victorian Antique Boulder Opal

Materials

Opal, Gold, Yellow Gold, 14k Gold

Natural 9.38 Ct Ocean-Colored Australian Boulder Opal
Located in BELCONNEN, ACT
This free-form natural solid Australian boulder opal was mined in western Queensland, Australia by
Category

15th Century and Earlier Australian Antique Boulder Opal

Materials

Opal

Antique Natural 9.38 Ct Ocean-Colored Australian Boulder Opal
Natural 9.38 Ct Ocean-Colored Australian Boulder Opal
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W 0.5 in D 0.22 in L 0.85 in
Natural 9.30 Ct Rainbow Trapezoid Australian Boulder Opal
Located in BELCONNEN, ACT
This gem grade natural solid Australian boulder opal was mined in western Queensland, Australia by
Category

15th Century and Earlier Australian Antique Boulder Opal

Materials

Opal

Antique Natural 9.30 Ct Rainbow Trapezoid Australian Boulder Opal
Natural 9.30 Ct Rainbow Trapezoid Australian Boulder Opal
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W 0.66 in D 0.15 in L 0.54 in
Natural 5.75 Ct Electric Green Australian Boulder Opal
Located in BELCONNEN, ACT
This natural solid oval Australian boulder opal was mined in western Queensland, Australia by a
Category

15th Century and Earlier Australian Antique Boulder Opal

Materials

Opal

Antique Natural 5.75 Ct Electric Green Australian Boulder Opal
Natural 5.75 Ct Electric Green Australian Boulder Opal
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W 0.41 in D 0.15 in L 0.66 in
Natural 26.16 Ct Rainbow Heart Australian Boulder Opal
Located in BELCONNEN, ACT
This large natural solid Australian boulder opal was mined in western Queensland, Australia by a
Category

15th Century and Earlier Australian Antique Boulder Opal

Materials

Opal

Antique Natural 26.16 Ct Rainbow Heart Australian Boulder Opal
Natural 26.16 Ct Rainbow Heart Australian Boulder Opal
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W 0.86 in D 0.24 in L 0.88 in
Victorian Boulder Opal Cabochon 14 Karat Yellow Gold Stickpin
Located in Philadelphia, PA
Centering an oval cabochon boulder opal measuring approximately 10.0 x 8.0 mm Opaque brown matrix
Category

Early 1900s Victorian Antique Boulder Opal

Materials

Opal, Gold, 14k Gold, Yellow Gold

Antique Art Nouveau 10K Rose Gold Boulder Opal and Diamond Floral Ring
Located in Great Neck, NY
Beautiful Antique Art Nouveau 10K Rose Gold Boulder Opal Diamond Floral Ring. This beautiful ring
Category

1910s Art Nouveau Antique Boulder Opal

Materials

Diamond, Opal, Gold, 10k Gold, Rose Gold

Antique Victorian Peacock 10K Yellow Gold Boulder Opal Floral Ring
Located in Great Neck, NY
Beautiful Antique Victorian Peacock 10K Yellow Gold Boulder Opal Floral Ring. This beautiful
Category

1890s Victorian Antique Boulder Opal

Materials

Opal, Gold, 10k Gold, Yellow Gold

Opal
Located in New York, NY
from Ethiopia. There are several names given to opal (Black Opal, Boulder Opal, Fire opal, etc.). This
Category

15th Century and Earlier Ethiopian Antique Boulder Opal

Materials

Opal

Antique Opal
Opal
H 5.67 in W 4.34 in D 2.76 in
Victorian 1880 Antique Ring In 14Kt Gold With 8.95 Ctw In Opal And Diamonds
Located in Miami, FL
you: Fire Opal is known for its intense red, orange and yellow colors - the colors of a fire! Boulder
Category

1880s English Victorian Antique Boulder Opal

Materials

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

People Also Browsed

Modern Boulder Opal & Diamond Pendant Circa 1980s
Located in ADELAIDE, SA
Modern pendant with a bezel set a Queensland Boulder solid opal and a diamond set scrolled bale. Queensland Boulder Opal is celebrated not only for its visual appeal but also for its...
Category

1980s Australian Modern Antique Boulder Opal

Materials

Diamond, Opal, 14k Gold

Belle Époque Diamond Tiara
Located in London, GB
A Belle Époque diamond tiara, to the centre three diamond-set clusters with diamond-set foliate decorations and one large diamond-set cluster on each side, all within a waved frame o...
Category

Early 20th Century French Belle Époque Antique Boulder Opal

Materials

Diamond, Platinum

Big Opal Boulder Australian Fine gemstone Freeform 47 ct Neon Blue SSEF cert
By Alexey Gabilo
Located in Berlin, DE
Boulder Opal from Queensland, Australia is one of the rarest gemstones on earth. Spectacular in size, color, shape and exhibiting a full rainbow of colors, this 47.50-carat free shap...
Category

2010s Australian Artisan Antique Boulder Opal

Materials

Opal

Art Nouveau Signed Durand & Co. Black Opal, Diamond, Ombre Enamel 18K Gold Ring
Located in New York, NY
Entrancing Art Nouveau period black opal, diamond, ombre enamel 18k gold ring by Durand & Co. The dramatic oval opal framed in an exquisite ombre enamel paneled frame set with six E...
Category

Early 20th Century American Art Nouveau Antique Boulder Opal

Materials

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

Antique 18th Century Minas Novas Earrings Pendant/Brooch Girandole Portuguese
Located in Lisbon, PT
Museum-quality rare and important antique 18th century Minas Novas rock crystal quartz girandole pendant and earrings demi-parure mounted in closed-back silver, Portuguese, circa 177...
Category

1770s Portuguese Georgian Antique Boulder Opal

Materials

Quartz, Rock Crystal, Silver

Art Nouveau Diamond Demantoid Garnet 14 Karat Gold Frog Stickpin
Located in Philadelphia, PA
Designed as a cute and stylized frog Set throughout by round cut demantoid garnets and old European cut diamonds Tested as 14 karat gold Circa: 1905 Frog measures: 5/8 x 1/2 inch...
Category

Early 1900s Art Nouveau Antique Boulder Opal

Materials

Diamond, White Diamond, Garnet, Gold, 14k Gold, Yellow Gold

Tiffany & Co. Antique Enamel 18 Karat Yellow Gold Daisy Pendant Brooch
By Tiffany & Co.
Located in Philadelphia, PA
Designed as a highly rendered daisy with texturous center and fanning petals. Grooved with opaque matte white enamel - exhibiting minimal loss. Reverse is decorated with rendered gol...
Category

1890s Victorian Antique Boulder Opal

Materials

Gold, 18k Gold, Yellow Gold, Enamel

Lightning Ridge Natural Black Opal
By Faye Kim
Located in Westport, CT
Spectacular in color and shape and exhibiting a stunning range of colors, this 4.75 carat natural black opal is a gem-quality stone for the avid collector or jewelry lover. Unlike ...
Category

21st Century and Contemporary Australian Antique Boulder Opal

Materials

Opal, Black Opal

Lightning Ridge Natural Black Opal
Lightning Ridge Natural Black Opal
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W 0.41 in L 0.6 in
Austro Hungarian 835 Silver Simulated Rubies Multi Strand Choker Necklace
Located in Washington Depot, CT
Austro Hungarian 835 silver multi strand clip off choker necklace with simulated rubies. Victorian Era circa 1900. Marked: 835. Maker's or Assayer's mark of what appears to be: AGM...
Category

20th Century Antique Boulder Opal

Materials

Ruby, Silver

Victorian Emerald Diamond Ruby 14 Karat Gold Weevil Beetle Insect Stickpin
Located in Philadelphia, PA
Designed as a weevil insect with a largely domed abdomen decorated with lines of rose cut diamonds alternating with black enamel stripes Thorax is comprised of central cushion cut e...
Category

1880s Victorian Antique Boulder Opal

Materials

Diamond, White Diamond, Emerald, Ruby, Gold, 14k Gold, Yellow Gold, Enamel

Georgian 18 Karat Yellow Gold Handmade Long Chain, circa 1820
Located in New York, NY
Georgian 18 Karat Yellow Gold Handmade Long Chain c.1820 Period: Late 18th. Century Year: c.1800 Material: 18k Yellow Gold Weight: 30.30g Length: 37 inches Condition: Excellent Ant...
Category

Late 18th Century Unknown Georgian Antique Boulder Opal

Materials

18k Gold, Yellow Gold

2.07ct Triangular Cabochon Black Opal GIA Certified Australia
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 2215817206 Shape: Triangular Cutting Style: Cabochon Cutting Style: Crown: Cutting Style:...
Category

2010s Australian Antique Boulder Opal

Materials

Black Opal

2.07ct Triangular Cabochon Black Opal GIA Certified Australia
2.07ct Triangular Cabochon Black Opal GIA Certified Australia
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W 0.58 in D 0.12 in L 0.31 in
Black Starr & Frost Natural Pearl & Diamond Ring GIA
By Black, Starr & Frost
Located in Litchfield, CT
Circa 1910, Platinum, by Black Starr & Frost, New York. Breathtakingly beautiful, the Natural Pink tone American River Pearl (GIA Report) in this ring is truly dreamy. Delicately sur...
Category

1910s American Antique Boulder Opal

Materials

Diamond, Natural Pearl, Platinum

Antique Edwardian Opal Seed Pearl 9ct Gold Brooch
Located in London, GB
Discover our exquisite doublet opal and seed pearl brooch. The central gemstone features a beautiful opal, radiating green-blue hues set in 9ct yellow gold. Complementing this opales...
Category

Early 1900s English Edwardian Antique Boulder Opal

Materials

Opal, Pearl, Gold

Art Nouveau Diamond Plique-A-Jour Enamel 18 Karat Gold Gibson Girl Stickpin
Located in Philadelphia, PA
Stickpin has a quatrefoil shaped head and depicts the matte gold profile of a Gibson Girl Highly rendered with tousled tresses accented by rose cut diamonds With a radiated backgro...
Category

Early 1900s Art Nouveau Antique Boulder Opal

Materials

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

Victorian Sapphire Diamond Silver-Topped 14 Karat Gold Flower Stickpin
Located in Philadelphia, PA
Designed as a heavily oxidized stemmed flower centering a cushion cut sapphire weighing approximately 0.78 carat; transparent and a bright royal blue color With petal surround and l...
Category

1880s Art Nouveau Antique Boulder Opal

Materials

Diamond, White Diamond, Sapphire, Gold, 14k Gold, Yellow Gold, Silver

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EGL Certified 14 Karat 1.15 Carat Black Boulder Opal and Diamond Ring
Located in Mobile, AL
Antique 14 karat 1.15 carat Black Boulder Opal and 1.91 carat Miner Cut Diamonds Ring. Made in 1866
Category

1860s British Early Victorian Antique Boulder Opal

Materials

Diamond, Opal, 14k Gold

Gemstone Statement Objet D' Art Necklace by Jane Magon Collections in Silver
By Jane Magon Collections
Located in New York, NY
called SETTING SUN ON ULARU with the main stones being Carnelian, Agate, Mexican Fire opal. The
Category

17th Century Australian Artisan Antique Boulder Opal

Materials

Jade, Cultured Pearl, Quartz, Tiger's Eye, Other, Agate, Amber, Carnelia...

Modern Boulder Opal Pendant Circa 1990s
Located in ADELAIDE, SA
Modern pendant featuring a Queensland Boulder solid opal pendant with a 55cm curb link chain
Category

Early 20th Century Modern Antique Boulder Opal

Materials

Opal, 18k Gold

Modern Boulder Opal Pendant Circa 1990s
Modern Boulder Opal Pendant Circa 1990s
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H 1.38 in L 21.66 in
Antique Victorian Tiffany & Co. Boulder Opal Five Stone Wedding Band
By Tiffany & Co.
Located in Great Neck, NY
Beautiful Antique Victorian Tiffany and Co Boulder Opal Five Stone Wedding Band - Size 8. This
Category

1890s Unknown Victorian Antique Boulder Opal

Materials

Opal, 18k Gold

Victorian Opal 14 Karat Gold Snake Ring
Located in Philadelphia, PA
cabochon boulder opal Opal is translucent and has very strong blue/green play-of-color with violet
Category

Early 1900s Victorian Antique Boulder Opal

Materials

Opal, Gold, 14k Gold, Yellow Gold

ARCHIBALD KNOX Art Nouveau Ring
By Archibald Knox
Located in London, GB
with a beautiful boulder opal. Original fitted case the silk marked: LIBERTY, LONDON PARIS, BY
Category

Late 19th Century British Art Nouveau Antique Boulder Opal

Materials

Opal, 18k Gold

Shreve & Co. Victorian Opal Multi-Gem Platinum Gold Antique Arrowhead Pendant
By Shreve & Co.
Located in Philadelphia, PA
Designed as an arrowhead comprised of a triangular tablet of boulder opal measuring 13.5 x 30.0 mm
Category

Early 1900s Victorian Antique Boulder Opal

Materials

Emerald, Opal, Ruby, Blue Sapphire, Gold, 14k Gold, Yellow Gold, Platinum

Edwardian 18kt + Carved Opal Pharaoh Stick Pin
Located in Narberth, PA
"18K" on the backside. Though not visible when worn, the Boulder opal displays a lovely lavender hue on
Category

1910s Unknown Edwardian Antique Boulder Opal

Materials

Opal, 18k Gold, Yellow Gold

3.0 Carat Boulder Black Opal Arts and Crafts Ring
Located in Lexington, KY
3.0 carat Boulder Black Opal set in Arts & Crafts ring in 14K yellow gold Exceptional shoulders
Category

1910s Arts and Crafts Antique Boulder Opal

Materials

Opal, 14k Gold, Yellow Gold

Tiffany & Co. Boulder Opal and Gold Cufflinks, Circa 1910
By Tiffany & Co.
Located in London, GB
A pair of antique Tiffany & Co. cabochon boulder opal cufflinks, each set with a circular domed
Category

1910s Edwardian Antique Boulder Opal

Materials

Opal, Gold

19th Century Carved Boulder Opal Indian's Head Stickpin
Located in New York, NY
Lovely carved indian chief stickpin set in 14K gold. Boulder opal is carved to highlight the blue
Category

Late 19th Century American Victorian Antique Boulder Opal

Materials

Opal, 14k Gold

Natural Large Boulder Opal Dangle Earrings with 6.45 Carat Total Diamond Weight
Located in Houston, TX
Natural large free form boulder opal dangle earrings with 6.45 carat total diamond weight set in
Category

15th Century and Earlier American Antique Boulder Opal

Materials

Diamond, Opal, 18k Gold

Edwardian Carved Boulder Opal 14 Karat Gold Figure Stickpin
Located in Philadelphia, PA
Centering a deeply carved boulder opal depicting the profile of a man with a stylized beard and a
Category

Early 1900s Edwardian Antique Boulder Opal

Materials

Opal, 14k Gold, Yellow Gold

Antique Mexican Boulder Opal Ring Certified
Located in Southbury, CT
x 13.4 x 9.31mm Type II (Boulder) precious opal that the gem lab has identified as Mexican in origin
Category

1890s Unknown Victorian Antique Boulder Opal

Materials

Diamond, Opal, 14k Gold

Victorian Opal Diamond Insect Brooch in Gold
Located in London, GB
A delightful Victorian boulder opal and rose cut diamond bug brooch set in silver on gold. The
Category

1850s Unknown Early Victorian Antique Boulder Opal

Materials

Diamond, Opal, 9k Gold

Murrle Bennet & Co. Opal Ring, Arts & Crafts, circa 1910, 18 Karat Yellow Gold
By Murrle Bennett & Co.
Located in Yorkshire, West Yorkshire
A Murrle Bennett & Co opal ring in a typical Arts and Crafts design and using a boulder opal in all
Category

Early 1900s British Arts and Crafts Antique Boulder Opal

Materials

Opal, 18k Gold

Victorian Opal and Diamond Pendant of Beguiling Beauty on Cut Steel Chain
Located in Southbury, CT
boulder opals from Queensland, fire opals from Mexico. This is my favorite opal, hands down. This fine and
Category

1890s Unknown Victorian Antique Boulder Opal

Materials

Opal, 18k Gold, Silver, Cut Steel

American 1895 Art Nouveau Ring In 14Kt Yellow Gold With 3.42 Cts Black Opal
Located in Miami, FL
and yellow colors - the colors of a fire! Boulder Opal is opal with attached host rock. It can be
Category

1890s American Art Nouveau Antique Boulder Opal

Materials

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

Extraordinary Antique Egyptian Revival Carved Boulder Opal Pendant
Located in Lambertville, NJ
A work of art in carved boulder opal cameo, the antique pendant is finely detailed on both sides
Category

Late 19th Century Unknown Victorian Antique Boulder Opal

Materials

Diamond, Opal, Pearl, 14k Gold

Antique Arts & Crafts Boulder Opal Ring
Located in Lambertville, NJ
Rare American made Arts and crafts boulder opal, diamond, ruby and green garnet ring circa 1910 in
Category

Early 1900s American Arts and Crafts Antique Boulder Opal

Materials

Diamond, Garnet, Opal, Ruby, 14k Gold

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Antique Boulder Opal For Sale on 1stDibs

Find the exact antique boulder opal you’re shopping for in the variety available on 1stDibs. Frequently made of gold, 14k gold and yellow gold, this item was constructed with great care. Making the right choice when shopping for an antique boulder opal may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 20th Century, both of which have proven very popular over the years. There have been many well-made iterations of the classic antique boulder opal over the years, but those made by Mother Nature and Tiffany & Co. are often thought to be among the most beautiful. See these pages for a cabochon iteration of this accessory, while there are also mixed cut cut and rough cut cut versions available here, too. There aren’t many items for men if you’re seeking an antique boulder opal, as most of the options available are for women and unisex.

How Much is a Antique Boulder Opal?

The price for an antique boulder opal starts at $600 and tops out at $265,000 with these necklaces, on average, selling for $5,725.
Questions About Antique Boulder Opal
  • 1stDibs ExpertAugust 17, 2021
    An Australian boulder opal is an opal mined from a large ironstone boulder under the ground. This type of opal is the second most valuable opal behind the black opal. Spot an Australian boulder opal by checking for a solid layer of brown ironstone left on the back of the stone. Shop Australian boulder opals on 1stDibs.