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NWT $90, 000 Rare 18KT Gold Large 17CT Boulder Black Opal Fancy Diamond Pendant
Located in New York, NY
Black Opal and Diamond Gorgeous Pendant. Pendant features a Magnificent Rare Color Changing Black Opal
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Australian Boulder Opal Necklace
Located in Chesterland, OH
, gray, orange, or white. If the matrix is dark, the stones are known as “boulder blacks.” Opal play of
Category

21st Century and Contemporary American Beaded Necklaces

Materials

Opal, Sterling Silver

Natural Australian 7.43ct Boulder Opal and Diamond Cocktail Ring 18k Yellow Gold
By Opal Minded
Located in Sydney, AU
The impressive and opulent Ta Prohm boulder opal ring (7.43ct) is a piece that carries the ancient
Category

2010s Australian Contemporary Cocktail Rings

Materials

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

Collection Boulder opal pendants with silver
Located in Delft, NL
Collection Boulder opal pendants with silver Nine small boulder Opal pendants with silver eyelets
Category

Late 20th Century Oceanic Collectible Jewelry

Materials

Opal

Boulder Opal from Australia – 116 ct
Located in New York, NY
This exquisite Boulder Opal from Australia showcases a vibrant play of colors, featuring electric
Category

2010s Australian Natural Specimens

Materials

Opal

Boulder Opal from Australia – 116 ct
Boulder Opal from Australia – 116 ct
H 1.1 in W 1.38 in D 0.7 in
Boulder Opal from Australia – 397.45 ct
Located in New York, NY
This magnificent Boulder Opal from Australia is a true masterpiece of nature, showcasing a
Category

2010s Australian Natural Specimens

Materials

Opal

Boulder Opal from Australia – 397.45 ct
Boulder Opal from Australia – 397.45 ct
H 1.61 in W 2.95 in D 0.59 in
Boulder Opal black silver necklace Grey Blue Natural Australian Gemstone
Located in Berlin, DE
Black patina silver necklace with natural Boulder Opal gemstone origin - Australia opal weight
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

18k Gold Short Necklace with Opal Beads Australian Boulder Opal Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A lovely and intriguing necklace with a mesmerising natural Australian black opal pendant strung on
Category

2010s Dutch Artisan Beaded Necklaces

Materials

Opal, Black Opal, 18k Gold

Platinum Australian Black Boulder Opal and Diamond Pin Pendant Flowers
Located in Big Bend, WI
Incredible platinum pin/pendant featuring a large Australian black boulder opal. The opal has blue
Category

21st Century and Contemporary Brooches

Materials

Diamond, Opal, Platinum

Natural 12.61 Ct Australian green-blue black boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This rare 12.61 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Fine Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
As good as it gets! This is a fine example of Australian opal; being a boulder opal or black opal
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Platinum

Natural 2.75 Ct Australian green and pink black boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 2.75 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Precious White Opal & Boulder Opal "Heartbreak" Earrings in 18K Gold w Diamonds
By Eytan Brandes
Located in Sherman Oaks, CA
Two opals -- one a lively precious white opal, and the other a stormy dark blue boulder opal
Category

2010s American Contemporary Dangle Earrings

Materials

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

Natural 5.89 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This amazing 5.89 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Magnificent Australian Loose Black Boulder Opal of 5.50ct. 19mm x 12mm x 4mm.
Located in MELBOURNE, AU
This Australian Loose Boulder Opal is of impressive 5.50ct (19mm x 12mm x 4mm) from Winton
Category

Vintage 1980s Australian Loose Gemstones

Materials

Opal

Handcrafted One-of-a-kind 18kt Gold and Precious Black Boulder Opal Earrings
By Angelina Fine Jewelry
Located in Amsterdam, NH
A quietly understated pair of earrings with precious black opals suspended from a 18k gold coral
Category

2010s Dutch Artisan Drop Earrings

Materials

Opal, Gold, 18k Gold

Natural 20.39 Ct Australian kite-shaped boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This unique 20.39 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Natural Untreated Australian 4.34ct Boulder Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
precious 4.34ct boulder opal hailing ethically from our Jundah-Opalville opal mines in Queensland. The
Category

2010s Australian Contemporary Engagement Rings

Materials

Black Opal, Opal, Yellow Gold, 18k Gold

Studio Greytak 'Boulder Opal Earrings on Copper' Amethyst, Citrine, & Peridot
By Studio Greytak
Located in Missoula, MT
MATERIALS Boulder Opal Amethyst Citrine Peridot Copper Silver
Category

21st Century and Contemporary American Modern Lever-Back Earrings

Materials

Amethyst, Citrine, Opal, Peridot, Silver, Copper

Natural Untreated Australian 20.69ct Boulder Opal Ring in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
and playful hues. This beautiful 20.69ct boulder opal is elaborately decorated with 37 sparkling
Category

2010s Australian Contemporary Cocktail Rings

Materials

Black Opal, Opal, Yellow Gold, 18k Gold

4.87 Carat Natural Australian Boulder Opal and Diamond Ring Made in Platinum
Located in Tokyo, JP
A beautiful ring featuring a 4.87 Carat, Natural, Australian Boulder Opal and 0.13 Carats of
Category

20th Century Japanese Modern Cocktail Rings

Materials

Black Opal, Opal, Diamond, Platinum

4.96 Carat Natural Australian Boulder Opal and Diamond Pendant Made in Platinum
Located in Tokyo, JP
A beautiful pendant featuring a 4.96 Carat, Natural, Australian Boulder Opal and 0.12 Carats of
Category

21st Century and Contemporary Japanese Modern Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Platinum

Estate Boulder Opal Ring with Diamonds in 18k Yellow Gold
Located in La Jolla, CA
Yellow Gold and Black Enamel. Total boulder opal weight is 4.93 carats. Total diamond weight is .31
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

11.69 Carat Natural Australian Boulder Opal and Diamond Ring Made in Platinum
Located in Tokyo, JP
A beautiful ring featuring a 11.96 Carat, Natural, Australian Boulder Opal and 0.46 Carats of
Category

20th Century Japanese Modern Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

1970s Cabochon Cut Boulder Opal 1.52ct Sapphire and 1.28ct Diamond Pendant
Located in Jesmond, Newcastle Upon Tyne
type of opal (following black opal). Boulder opals are easily distinguished by their layer of solid
Category

Vintage 1970s German Drop Necklaces

Materials

Diamond, Opal, Sapphire, 18k Gold, Yellow Gold, 14k 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

Antique 15th Century and Earlier Ethiopian Natural Specimens

Materials

Opal

Opal
Opal
H 5.67 in W 4.34 in D 2.76 in
MODERNIST Studs Earrings In 14Kt Yellow Gold With Australian Opals And Black Jet
Located in Miami, FL
Modernist earrings with boulder opals and black jet. This beautiful pair of modernist studs
Category

1990s American Modernist Stud Earrings

Materials

Opal, Gold, Yellow Gold, 14k Gold

Spectacular Boulder Opal Emerald Sapphire Gold Cocktail Ring
Located in Louisville, KY
A true One of a Kind, without a doubt Spectacular 9.98ct Boulder Black Opal in an irregular, Free
Category

2010s Cocktail Rings

Materials

Blue Sapphire, Emerald, Opal, Sapphire, 18k Gold

24.11ct Natural Solid Untreated Black Boulder Opal
Located in MAIN BEACH, QLD
Once-in-a-lifetime gem, this Australian black boulder opal has no equal. With its stunning ribbon
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

5.82ct Black Boulder Opal, Diamond & 18K Gold Necklace
Located in MAIN BEACH, QLD
What an amazing black boulder opal we have here. Bright reds, greens and blues in this bespoke
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold

Australian 12.94ct Black Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
beautiful. Dress to impress; Black Boulder Opal set in solid 18K gold and platinum, accented by stunning
Category

Late 20th Century Australian Art Deco Cocktail Rings

Materials

Black Opal, Opal, Diamond, Platinum, 18k Gold

Black Boulder Opal 21 1/4" Flat Cable Festoon 14K Necklace
Located in Fuquay Varina, NC
Black boulder opal are like no other opal and just stunning in their natural form. This 21 1/4" 14k
Category

Mid-20th Century Unknown Multi-Strand Necklaces

Materials

Opal, Black Opal, 14k Gold, Yellow Gold

Australian 6.10ct Black Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
The rich, bright colours of this unbelievable black boulder opal are without compare. The purples
Category

21st Century and Contemporary Australian Choker Necklaces

Materials

Diamond, Opal, 18k Gold, Platinum

Australian 8.01ct Boulder Opal, Emerald & 18K Gold Brooch
Located in MAIN BEACH, QLD
. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 8.01ct Opal Origin: Winton, QLD, Australia Dimensions
Category

Late 20th Century Australian Brooches

Materials

Diamond, Opal, Black Opal, Emerald, 18k Gold

Australian Koroit Black Boulder Opal Sterling Silver Pendant by Ken Fury
By Ken Fury
Located in Queens, NY
, featuring a natural Australian Koroit black boulder opal stone. The intricate design of the pendant is
Category

2010s American Contemporary Pendant Necklaces

Materials

Opal, Sterling Silver

Australian 3.72ct Boulder Opal & 18K Gold Bracelet
Located in MAIN BEACH, QLD
Boulder opal has long been a favourite of opal lovers and this beautiful opal shows why. Crisp
Category

21st Century and Contemporary Australian Link Bracelets

Materials

Opal, 18k Gold

Australian 20.05ct Boulder Opal, Diamond & Platinum Necklace
Located in MAIN BEACH, QLD
: Black Boulder Opal Opal Weight: 20.05ct Opal Origin: Winton, QLD, Australia Diamonds: 1.59ct D IF - F
Category

2010s Australian Pendant Necklaces

Materials

Diamond, Opal, Platinum

Australian 1.67ct Boulder Opal, Diamond & Platinum Necklace
Located in MAIN BEACH, QLD
A modern piece set with three black boulder opals. A large diamond in the bail with a solid
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, Platinum

Australian 3.06ct Boulder Opal, Diamond & Platinum Ring
Located in MAIN BEACH, QLD
the most sought after reds and blues. This stunning black boulder opal is set in platinum and has two
Category

21st Century and Contemporary Australian Three-Stone Rings

Materials

Diamond, Opal, Platinum

Australian 7.00ct Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
black boulder opal is of clean, vivid colour, set in an 18K solid gold and platinum ring with high
Category

21st Century and Contemporary Australian Cocktail Rings

Materials

Black Opal, Opal, Diamond, Platinum, 18k Gold

3.78ct Australian Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
heart with flutters this very cute flower necklace has it all. A moss green Boulder Opal has a very rare
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, Black Opal, Diamond, Platinum, 18k Gold

Australian 4.38ct Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
SPECIFICATIONS Opal Type: Boulder Opal Opal Weight: 4.38ct Opal Origin: Winton, QLD, Australia
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Australian 21.86ct Boulder Opal, Diamond, Platinum & 18K Gold Necklace
Located in MAIN BEACH, QLD
. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 21.86ct Opal Origin: Winton, QLD, Australia Diamonds
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Australian 2.60ct Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
-green Boulder Opal with flicks of orange and gold and hints of purple this stone is truly a gem
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Australian 3.00ct Boulder Opal, Diamond, 18K Gold & Platinum Bracelet
Located in MAIN BEACH, QLD
gems, but also a worthy investment. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 3.00ct
Category

Late 20th Century Australian Bangles

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

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

Australian 23.25ct Boulder Opal, Diamond & 18K Gold Cufflinks
Located in MAIN BEACH, QLD
sophistication to your bling (and your shirt) with these stunning black boulder opal and diamond cufflinks
Category

21st Century and Contemporary Australian Cufflinks

Materials

Diamond, Opal, 18k Gold

Australian 9.59ct Boulder Opal, Diamond & 18K Gold Bracelet
Located in MAIN BEACH, QLD
A very unusual yet beautiful multicoloured black boulder opal set in 18K solid gold with high
Category

21st Century and Contemporary Australian Bangles

Materials

Diamond, Opal, 18k Gold

Australian 10.38ct Boulder Opal, Diamond & 18K Gold Ring
Located in MAIN BEACH, QLD
service. SPECIFICATIONS: Opal Type: Black Boulder Opal Opal Weight: 10.38ct Opal Origin: Winton, QLD
Category

Late 20th Century Australian Cocktail Rings

Materials

Diamond, Opal, 18k Gold

Australian 22.8ct Boulder Opal, Diamond & 18K Gold Necklace
Located in MAIN BEACH, QLD
outback of Queensland, Australia. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 22.80ct Opal
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

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

Antique 1860s British Early Victorian Cocktail Rings

Materials

Diamond, Opal, 14k Gold

Australian Boulder Opal, Pink Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
. With its truly amazing Black Boulder Opal of over 50ct from the Queensland outback, to its Pink and
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Pink Diamond, Opal, 18k Gold, Platinum

Australian 23.00ct Boulder Opal, Diamond, 18K Gold & Platinum Necklace
Located in MAIN BEACH, QLD
without one, if required). SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 23.00ct Opal Origin
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Platinum

Australian 8.24ct Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
no time at all. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 8.24ct Opal Origin: Winton
Category

21st Century and Contemporary Australian Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Platinum

Australian 6.35ct Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
Opal Type: Black Boulder Opal Opal Weight: 6.35ct Opal Origin: Winton, QLD, Australia Diamonds: 0.27ct
Category

Late 20th Century Australian Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Platinum

Australian 6.95ct Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
in platinum to bring out their luminance. SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight
Category

Late 20th Century Australian Cocktail Rings

Materials

Diamond, Opal, 18k Gold, Platinum

6.66 Carat Boulder Opal, Diamond, 18K Gold & Platinum Collier Necklace
Located in MAIN BEACH, QLD
goldsmith. The opal in this piece is a pinfire/palette flash patterned black boulder opal for the outback
Category

21st Century and Contemporary Australian Choker Necklaces

Materials

Diamond, Opal, 18k Gold, Platinum

Australian 9.18ct Boulder Opal, Diamond, 18K Gold and Platinum Ring
Located in MAIN BEACH, QLD
. A stunning multi-patterned Black Boulder Opal, encrusted pavé set brilliant white diamonds, 18K
Category

21st Century and Contemporary Australian Cocktail Rings

Materials

Opal, Diamond, Platinum, 18k Gold

Australian 7.27ct Boulder Opal & 18k Gold Earrings with Detachable Diamond Studs
Located in MAIN BEACH, QLD
SPECIFICATIONS Opal Type: Black Boulder Opal Opal Weight: 7.27ct Diamonds: 0.40ct D IF - F VVS
Category

Late 20th Century Australian Drop Earrings

Materials

Diamond, Opal, 18k Gold

Australian Natural Solid 2.59ct Boulder Opal, Diamond, 18K Gold & Platinum Ring
Located in MAIN BEACH, QLD
A unique design displaying a stunning black boulder opal and high jewellery grade diamonds. Set in
Category

21st Century and Contemporary Australian Fashion Rings

Materials

Opal, 18k Gold, Yellow Gold, Platinum

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Boulder Black Opal For Sale on 1stDibs

Surely you’ll find the exact boulder black 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 14k Gold — can elevate any look. You can easily find a 7 antique edition and 7 modern creations to choose from as well. You’re likely to find the perfect boulder black opal among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. Finding an appealing boulder black opal — no matter the origin — is easy, but Jennifer Kalled, Renata Bernard and Tiffany & Co. each produced a popular version that is worth a look. A boulder black opal can be a stylish choice for most occasions, but Opal rings, from our inventory of 11, can add a particularly distinctive touch to your look, day or night. A cabochon version of this piece has appeal, but there are also pear cut and round cut versions for sale. There aren’t many items for men if you’re seeking a boulder black opal, as most of the options available are for women and unisex.

How Much is a Boulder Black Opal?

On average, a boulder black opal at 1stDibs sells for $4,200, while they’re typically $1,250 on the low end and $62,400 for the highest priced versions of this item.

The Legacy of Opal in Jewelry Design

Opals were discovered in 400 BC, and since then five types have been found throughout the world. Before you start shopping for mysteriously beautiful vintage opal rings and other opal jewelry, learn about the different varieties of the gem — and find out which historical figure was reportedly willing to trade his kingdom for a single stone.

Here is a little riddle for you: the month of October has two birthstones, but only one of them encompasses the colors of other birthstones. If you guessed opal, you’re right! (The other gemstone associated with the month of October is tourmaline.)

Opals are such unusual gemstones that there are too many old-wives tales associated with them, like if you’re a blond, wearing an opal necklace will protect your locks from losing color. Opals were also very fashionable in the early 19th century, up until the publication of Sir Walter Scott’s novel Anne of Geierstein in 1829. The title heroine wears an opal and succumbs to an untimely death. However, the British monarchy, and in particular Queen Victoria, did not let this story get in their way, and they frequently gifted opals to friends and family members. October babies should disregard the noise and proudly wear their opals!

There are five types of precious opals: boulder opal, fire opal, crystal/water opal, black opal, and white/light opal. Each variety is distinguished by its color.

So, where does the name come from? The word opal is thought to originate from the Roman opalus or from the Sanskrit úpala (“precious stone”) or from the Greek opallios (“to see a color change”). So while there have been many names for the stones, opals were first discovered in 400 BC in Ethiopia. But the early reference that comes up most often in history books is from the Roman philosopher Pliny the Elder, who wrote about it in 75 AD. In his text he refers to it as opali. The Romans were big fans of opal, Mark Antony was so enamored by it that, as the story goes, he was willing to trade a portion of his kingdom for a single opal.

There's a wide variety of antique and vintage opal jewelry on 1stDibs (and you won't have to trade your kingdom for it).

Questions About Boulder Black 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.
  • 1stDibs ExpertApril 5, 2022
    To see if your black opal is real, check the potch on the back. Double-sided opals are rare, so if there is a lack of potch and color all the way through, this could indicate a fake. Shop a collection of expertly vetted opals from some of the world’s top sellers on 1stDibs.
  • 1stDibs ExpertOctober 12, 2021
    Black fire opal can vary in worth, from $10 per carat to $10,000 per carat. Black opals are generally considered extremely valuable because of their vibrant spectrum of colors and are one of the most enchanting stones in the world. On 1stDibs, shop a range of vintage black fire opal jewelry.