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Onyx Loose Gemstones

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Gemstone: Onyx
Natural Australian Opal Onyx Lady Cameo Hand Carved Loose Gemstone
Natural Australian Opal Onyx Lady Cameo Hand Carved Loose Gemstone

Natural Australian Opal Onyx Lady Cameo Hand Carved Loose Gemstone

By Vaibhav Dhadda

Located in Jaipur, Rajasthan

Elegant Opal Cameo on Black Onyx This striking piece features a beautifully hand-carved Australian opal cameo set against a polished black onyx background. The opal shimmers with vi...

Category

21st Century and Contemporary Australian Victorian Onyx Loose Gemstones

Materials

Onyx, Opal

50 MM Hand-Carved Australian Opal Maiden Cameo on Black Onyx Gemstone
50 MM Hand-Carved Australian Opal Maiden Cameo on Black Onyx Gemstone

50 MM Hand-Carved Australian Opal Maiden Cameo on Black Onyx Gemstone

By Vaibhav Dhadda

Located in Jaipur, Rajasthan

This exquisite loose gemstone features a delicate, hand-carved Australian Opal cameo set against a polished Black Onyx tablet. The carving depicts the profile of a young maiden with ...

Category

21st Century and Contemporary Indian Victorian Onyx Loose Gemstones

Materials

Onyx, Opal

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28.57 Carat Black Australian Opal
28.57 Carat Black Australian Opal

28.57 Carat Black Australian Opal

Located in Bangkok, TH

This piece is a massive and stunning, 28.57 Carat Black Opal, in a mesmerising, trillion-cut shape. Opals are a unique and captivating type of gemstone known for their play-of-color,...

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19th Century Edwardian Antique Onyx Loose Gemstones

Materials

Opal, Black Opal, Platinum

Natural Ethiopian Opal Loose gemstone 9.45ct. Oval cabochon, 17.76x14.02x7.04 mm
Natural Ethiopian Opal Loose gemstone 9.45ct. Oval cabochon, 17.76x14.02x7.04 mm

Natural Ethiopian Opal Loose gemstone 9.45ct. Oval cabochon, 17.76x14.02x7.04 mm

By GRALJEWELRY

Located in Dublin, D

9.45 Ct., Ethiopian Opal Premium quality. Stone Origin: Welo, Ethiopia Stone dimension (mm): 17.76x14.02x7.04 mm Shape and cut: oval cabochon Stone treatment: Not Enhanced Stone cre...

Category

2010s Ethiopian Onyx Loose Gemstones

Materials

Opal

Natural 2.75 Ct Australian green and pink black boulder opal mined by Sue Cooper
Natural 2.75 Ct Australian green and pink black boulder opal mined by Sue Cooper

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 Onyx Loose Gemstones

Materials

Opal, Black Opal

Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making
Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making

Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making

By The Wind Opal

Located in Suwanee, GA

Small Round Australian Boulder Opal 0.50ct Loose Gemstone Jewelry Making. Free Domestic USPS First Class Shipping! Free Gift Bag/Box with every order! Every Opal piece is Unique. W...

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2010s American Arts and Crafts Onyx Loose Gemstones

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Opal

10 Carat Australian Boulder Opal Freeform Cabochon
10 Carat Australian Boulder Opal Freeform Cabochon

10 Carat Australian Boulder Opal Freeform Cabochon

Located in New York, NY

This incandescent 10 ct. Boulder Opal freeform cabochon features a captivating play of color across its polished surface with electrifying flashes of green, violet, aqua, and gold sh...

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2010s Australian Onyx Loose Gemstones

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Opal

4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone
4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone

4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone

Located in Jaipur, RJ

4.15 Carats Australian Opal Royal Blue Flash with green play of color Gemstone Gemstone : Opal Doublet Size : 18.5X10 MM Weight : 4.15 Carats Quantity - 1 Piece Shape - Fancy

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21st Century and Contemporary Australian Onyx Loose Gemstones

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Opal

Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design
Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design

Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design

By The Wind Opal

Located in Suwanee, GA

Pear Natural Australian Black Opal 0.43 ct Loose Gemstone Jewelry Making Design. Free Domestic USPS First Class Shipping! Free Beautiful Gift Bag with every order! Every Opal piece...

Category

2010s American Arts and Crafts Onyx Loose Gemstones

Materials

Opal, Black Opal

Natural 9.35 Ct Carved Crystal Australian Opal Scarab mined by Sue Cooper
Natural 9.35 Ct Carved Crystal Australian Opal Scarab mined by Sue Cooper

Natural 9.35 Ct Carved Crystal Australian Opal Scarab mined by Sue Cooper

Located in BELCONNEN, ACT

This beautiful 9.35 Ct Australian crystal opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself and se...

Category

2010s Australian Onyx Loose Gemstones

Materials

Crystal, Opal

10.20 Carat Ethiopian Black Opal Loose Gemstone Rectangular Oval by Merkaba
10.20 Carat Ethiopian Black Opal Loose Gemstone Rectangular Oval by Merkaba

10.20 Carat Ethiopian Black Opal Loose Gemstone Rectangular Oval by Merkaba

By Merkaba

Located in Beverly Hills, CA

Offered loose for collectors and bespoke fine jewelry, this 10.20 carat Ethiopian black opal displays a dramatic, shifting play of color with lively flashes of red, green, blue, and ...

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21st Century and Contemporary Ethiopian Modern Onyx Loose Gemstones

Materials

Opal, Black Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum

Massive 56 Carat Australian Black Opal: Rare Lightning Ridge Gemstone Treasure
Massive 56 Carat Australian Black Opal: Rare Lightning Ridge Gemstone Treasure

Massive 56 Carat Australian Black Opal: Rare Lightning Ridge Gemstone Treasure

By Malpani Jewels

Located in Hung Hom, HK

An extraordinary 56-carat Australian Black Opal, sourced from the renowned Lightning Ridge. This massive and rare gemstone is a true collector's treasure, celebrated for its mesmeriz...

Category

2010s Hong Kong Arts and Crafts Onyx Loose Gemstones

Materials

Opal, Black Opal

Natural 17.23 Carat Heart-Shaped Ethiopian Opal Loose Gemstone - Merkaba Jewelry
Natural 17.23 Carat Heart-Shaped Ethiopian Opal Loose Gemstone - Merkaba Jewelry

Natural 17.23 Carat Heart-Shaped Ethiopian Opal Loose Gemstone - Merkaba Jewelry

By Merkaba

Located in Beverly Hills, CA

Natural 17.23 Carat Heart-Shaped Ethiopian Opal Loose Gemstone by Merkaba Jewelry Beverly Hills Offered unmounted, this natural 17.23 carat heart-shaped Ethiopian Opal is a rare and ...

Category

21st Century and Contemporary Ethiopian Modern Onyx Loose Gemstones

Materials

Opal, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum

4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone
4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone

4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone

Located in Jaipur, RJ

4.31 Carats Australian Opal Royal Blue Flash with green play of color Gemstone Gemstone : Opal Doublet Size : 16.5x11.5 MM Weight : 4.31 Carats Quantity - 1 Piece Shape - Fancy

Category

21st Century and Contemporary Australian Onyx Loose Gemstones

Materials

Opal