Skip to main content

25 Carat Black Opal

25 Carat Black Australian Opal "Lightening Ridge'' 4.71 Carat Designer Necklace
By Malpani Jewels
Located in Hung Hom, HK
have steadily increased over time. In this designer necklace, 25 carat Australian Black Opal is set
Category

2010s Hong Kong Art Nouveau Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold

Recent Sales

Superb 24.95 Carat Australian Black Opal Diamond Halo Platinum Cocktail Ring
Located in Beverly Hills, CA
Simply breath-taking! Weighing in at almost 25 carats, this natural Australian black opal is an
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Black Opal, Platinum

25 Carat Black Opal Trillion Diamond Gold Pendant
Located in New York, NY
Amazing 25 carat black opal is suspended from a 1.32 carat trillion-cut diamond H color SI, on a 19
Category

Antique Late 19th Century American Victorian Chain Necklaces

Materials

Opal, 18k Gold, White Gold, Yellow Gold

People Also Browsed

Dalben Trilogy Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Dalben design One of a kind 18 kt rose gold ring with three bezel-set blue-green-pink Australian Boulder Opals weight 4,34 carats . Ring size US 7 1/4 - EU 55 re-sizable . Be...
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

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 western Queensland, Australia in 2024. Sue processed the rough opal herself and cut ...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

14K Gold Cocktail Ring, Art Deco Style 13 Ct. Emerald and Moissanite Stone
Located in ISTANBUL, TR
Art Deco Style 13 Ct. Emerald and Diamond Stone 14K Gold Cocktail Ring This ring was made with quality materials and excellent handwork. I guarantee the quality assurance of my hand...
Category

2010s Turkish Art Deco Cocktail Rings

Materials

Diamond, Emerald, 14k Gold

Dalben Australian Opal Diamond Gold Millerighe Ring
By Oreste Dalben
Located in Como, IT
Dalben design Opal ring with an Australian Opal weight 3,58 carat and 18 white round brillant cut Diamonds weight 0,51 carats mounted in 18 kt "millerighe" handmade engraved white g...
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

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

Double-sided pendant with natural Australian Boulder 18K Opal Gold Necklace
Located in Berlin, DE
Double-sided necklace with natural Australian Boulder Opal in 18K yellow gold gemstone origin - Australia gem size is 15 x 25 mm weight of the Opal - 17.75 carat pendant length - 38 ...
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

Yellow Gold Black Austrialian Opal Diamond Ring
Located in Palm Desert, CA
This beautiful 14-karat yellow gold ring showcases a striking black Australian triplet opal as its centerpiece. The oval opal measures 13.8 x 7mm and is prong-set, displaying a mediu...
Category

1990s Australian Retro Cocktail Rings

Materials

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

Boulder Opal Silver Ring Australian Opal Wedding Anniversary Statement Ring
Located in Berlin, DE
18K gold plated silver ring with natural free form shape Boulder Opal Opal gemstone origin - Australia opal measurements - 0.31 x 0.47 in / 8 х 12 mm ring weight - 7.6 grams ring s...
Category

2010s German Art Deco Cocktail Rings

Materials

Opal, Gold Plate, Silver

John Bonnor a Superb Arts & Crafts Gold, Black Opal and Ruby Necklace
Located in London, GB
Illustrated in our book: Beatriz Chadour-Sampson & Sonya Newell-Smith, Tadema Gallery London Jewellery from the 1860s to 1960s, Arnoldsche Art Publishers, Stuttgart 2021, cat. no. 15...
Category

Antique Early 1900s British Arts and Crafts Pendant Necklaces

Materials

Opal, Ruby

Art Deco Black Opal Old Mine Cut Diamond Rock Crystal Necklace 14 Karat Gold
Located in New York, NY
INDULGE IN THIS RARE AND MAGNIFICENT ANTIQUE ART DECO OPAL AND ROCK CRYSTAL BEAD NECKLACE WITH A SPECTACULAR BLACK OPAL AND ROSE CUT DIAMOND CLASP IN 14 KARAT GOLD. THE EXTRAORDINAR...
Category

20th Century Unknown Art Deco Beaded Necklaces

Materials

Opal, Diamond, Rock Crystal, Black Opal, Gold, 14k Gold, Yellow Gold

Black Opal Grey Diamonds Gold Ring Red Green Color
By Alexey Gabilo
Located in Berlin, DE
18K yellow gold and patinated silver ring with natural Black Opal and Diamonds opal origin - Australia opal measurements - 0.28 х 0.35 in / 7 х 9 mm stone weight - 0.88 carats ring w...
Category

2010s French Victorian Engagement Rings

Materials

Diamond, Opal, Black Opal, Gold, 14k Gold, Yellow Gold, Silver, Sterling...

Large Opal Silver Ring Nature inspired Ivy Statement Opal Jewelry
By Alexey Gabilo
Located in Berlin, DE
Connect with the latest addition to our Ivy collection and celebrate a special moment from the second it arrives. The flawlessly cut Opal sits at the center of an silver ring that’s ...
Category

2010s French Artisan Cocktail Rings

Materials

Opal, Silver

Black Opal Phoenix bird Carving for necklace Cobalt Blue 68 carats
Located in Berlin, DE
One of a kind piece - Black Opal "Phoenix" bird carved by Daniela L`Abbate, world champion of Opal carving opal origin - Australia opal weight - 68.85 carats opal measurements - 0.3...
Category

2010s Australian Art Nouveau Vanity Items

Materials

Opal, Black Opal

Black Opal Phoenix bird Carving for necklace Cobalt Blue 68 carats
Black Opal Phoenix bird Carving for necklace Cobalt Blue 68 carats
$46,031 Sale Price
35% Off
W 1.18 in D 0.39 in L 2.64 in
18K YG, Lightning Ridge Australian Opal & Diamond Ring by Barbara Heinrich
By Barbara Heinrich
Located in Virginia Beach, VA
Unveil the mesmerizing allure of the Lightning Ridge Australian Opal ring, an extraordinary creation by the acclaimed designer Barbara Heinrich. This exquisite piece showcases a brea...
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Opal, 18k Gold

Opal Ring
Located in Litchfield, CT
Circa 1970s, 18k, Italy. This cool seventies ring is all about the scintillating 4.52-carat cabochon opal. Displaying green, blue, orange, and red in simmering hues, this stone has e...
Category

Vintage 1970s Italian Fashion Rings

Materials

Opal, 18k Gold, Yellow Gold

Opal Ring
Opal Ring
$4,800
Natural 11.94 Ct Australian Crystal Nautilus opal carving mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 11.94 Ct Australian gem crystal opal, carved into a nautilus shell, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Fire Opal Earrings, 13.40 Carats
Located in New Orleans, LA
A stunning interplay of fire and ice, two perfectly matched cabochon fire opals coalesce with sparkling diamonds to form these statement earrings. Totaling an impressive 13.40 carats...
Category

21st Century and Contemporary Modern Stud Earrings

Materials

White Diamond, Opal, Fire Opal, Platinum

Get Updated with New Arrivals
Save "25 Carat Black Opal", and we’ll notify you when there are new listings in this category.

25 Carat Black Opal For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 25 carat black opal for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and white gold — can elevate any look. You can easily find a 49 antique edition and 53 modern creations to choose from as well. Finding the perfect 25 carat black opal may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing 25 carat black opal — no matter the origin — is easy, but Alexey Gabilo, Faye Kim and Five Star Jewelry each produced a popular version that is worth a look. While most can agree that any 25 carat black opal from our collection can easily elevate most outfits, but the choice of an opal version from the 73 available is guaranteed to add a special touch to your ensemble. 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 mixed cut alternatives. When shopping for a 25 carat black opal, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 25 Carat Black Opal?

On average, a 25 carat black opal at 1stDibs sells for $8,025, while they’re typically $600 on the low end and $98,000 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).