Skip to main content

Australian Loose Gemstones

92
to
1
1
2
89
2
3
46
44
2
2
2
2
66
17
16
14
9
55
16
9
3
2
to
7
2
1
Place of Origin: Australian
Natural 20.94 Ct Australian rainbow boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.94 Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2020. Sue processed the rough opal herself and c...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 9.47 Ct Australian crystal conch-shell opal carving mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 9.47 Ct Australian gem crystal opal, carved into a conch shell, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled wit...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

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...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 8.68 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 8.68 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself an...
Category

2010s Australian Loose Gemstones

Materials

Opal

6.39ct Freeform Gray Opal GIA Certified Australia
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 5234220342 Shape: NONE Cutting Style: Cutting Style: Crown: Cutting Style: Pavilion: ...
Category

2010s Australian Loose Gemstones

Materials

Opal

8.01ct Freeform Gray Opal GIA Certified Australia
Located in Toronto, Ontario
This is a stunning GIA Certified Opal The GIA report reads as follows: GIA Report Number: 2239220404 Shape: NONE Cutting Style: Cutting Style: Crown: Cutting Style: Pavilion: ...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.98 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.98 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut ...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Natural 1.78 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This stunning Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2023. Sue processed the rough opal herself and cut into...
Category

2010s Australian Loose Gemstones

Materials

Opal

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

Natural 4.26 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.26 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 int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 3.33 Ct Crystal Australian Opal Carved Opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 3.33 Ct Australian wood replacement opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herse...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 2.85 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This gorgeous 2.85 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut i...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 12.54 Ct Australian heart boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 12.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.37 Ct Gem Boulder Opal pair mined by Sue Cooper
Located in BELCONNEN, ACT
Introducing our exquisite narrow rectangle black boulder pair! This rare 3.37 Ct Australian black boulder opal pair was mined by Sue Cooper at her Yaraka opal mine in western Queens...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Natural 4.38 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.38 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed the rough opal herself and cut ...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 7.66 Ct Australian green and pink boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.66 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself an...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.88 Ct Crystal Shell Australian opal pair mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.88 Ct Australian gem crystal opal pair, carved into shells, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with ...
Category

2010s Australian Loose Gemstones

Materials

Opal, Crystal

Natural 5.53 Ct Australian Gem Opal Crystal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 5.53 Ct natural Australian gem crystal opal, carved into a pair of butterfly wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 12.35 Ct Australian Crystal Carved Butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 12.35 Ct natural Australian gem crystal opal, carved into a pair of butterfly wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. It...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 4.14 Ct Australian heart boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.14 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 3.66 Ct Australian Gem Crystal Angel Wings Opal mined by Sue Cooper
Located in BELCONNEN, ACT
This 3.66 Ct natural Australian gem crystal opal, carved into a pair of angel wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupl...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural solid 4.92 Ct Gem Crystal Angel Wings Opal mined by Sue Cooper
Located in BELCONNEN, ACT
This 4.92 Ct natural Australian gem crystal opal, carved into a pair of angel wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupl...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 9.59 Ct rainbow Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.66 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself an...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 13.54 Ct carved Boulder Opal butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 13.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough boulder opal herself...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 3.53 Australian pink and green boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 3.53 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 56.64 Ct Australian matrix boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 56.64 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 into into an large oval shape. We especially love the bright rainbow colours popping out from the host rock. The opal's size of 37.5 x 23 mm also make it perfect to wear as either a pendant piece or very large statement...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 9.42 Ct Australian light pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 9.42 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 6.07 Ct Australian Gem Crystal Angel Wings Opal mined Sue Cooper
Located in BELCONNEN, ACT
This beautiful 12.35 Ct natural Australian gem crystal opal, carved into a pair of angel wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its ra...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 5.10 Ct Australian Opal Crystal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 5.10 Ct natural Australian crystal opal, carved into a pair of butterfly wings, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 20.08 Ct Carved Boulder Opal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.08 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough boulder opal herself...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 5.59 Ct Carved Fossilised Opal carved Flower mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 5.95 Ct Australian crystal opal, carved into a flower, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with the ama...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 17.99 Ct Australian stripy green-blue boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This amazing 17.99 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and...
Category

2010s Australian Loose Gemstones

Materials

Opal

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 Loose Gemstones

Materials

Crystal, Opal

Natural 7.61 Ct Australian carved flower opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.61 Ct Australian wood replacement opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herse...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 5.24 Ct Australian pink boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 5.24 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 9.36 Ct Australian wood replacement opal heart mined by Sue Cooper
Located in BELCONNEN, ACT
This brilliant 9.36 Ct wood replacement opal, carved into a heart, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with its modern...
Category

2010s Australian Loose Gemstones

Materials

Opal

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 western Queensland, Australia in 2021. Sue processed the rough opal herself and cu...
Category

2010s Australian Loose Gemstones

Materials

Black Opal, Opal

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 western Queensland, Australia in 2020. Sue processed the rough opal herself and cut in...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Natural 23.20 Ct large teardrop boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 23.20 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural solid 21.67 Ct Crystal Starfish Australian Opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 21.67 Ct Australian gem crystal opal, carved into a large starfish, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 11.52 Ct Australian rainbow boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 11.52 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in Western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural Australian Opal GRS 3.53 ct
Located in Bangkok, TH
Introducing an exquisite marvel of nature: the Natural Australian Opal, ablaze with the fire of the heavens! This majestic collector's item, GRS certified and originating from the la...
Category

15th Century and Earlier Antique Australian Loose Gemstones

Materials

Opal

Natural 4.40 Ct Gem Grade Black Boulder Opal Heart mined by Sue Cooper
Located in BELCONNEN, ACT
Introducing our exquisite black boulder heart opal! This rare 4.40 Ct Australian black boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia i...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

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 in western Queensland, Australia in 2023. Sue processed the rough opal herself and ...
Category

2010s Australian Loose Gemstones

Materials

Black Opal, Opal

Natural 8.30 Ct Australian pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 8.30 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 int...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.28 Ct Australian stripy circle boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This stunning 4.28 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed the rough opal herself and cut i...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.15 Ct Australian pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.15 Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut i...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 4.95 Ct Wood Replacement Cloud Boulder Opal mined by Sue Cooper
Located in BELCONNEN, ACT
This pretty two-tone 4.95 Ct wood replacement opal, carved into a cloud, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with its ...
Category

2010s Australian Loose Gemstones

Materials

Crystal, Opal

Natural 13.31 Ct Austalian Boulder Oval Opal mined by Sue Cooper
Located in BELCONNEN, ACT
Discover the mesmerising beauty of this exquisite 13.31 Ct Australian Boulder oval opal, mined by Sue Cooper from her Mt. Margaret opal mine in Western Queensland, Australia. This...
Category

2010s Australian Loose Gemstones

Materials

Opal

Natural 6.27 Ct Wood Replacement Australian Opal Cloud mined by Sue Cooper
Located in BELCONNEN, ACT
This brilliant purple 4.95 Ct wood replacement opal, carved into a cloud, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with its...
Category

2010s Australian Loose Gemstones

Materials

Opal

Superb Australian Loose Solid Type 1 Black Opal of 9.20ct. Lightning Ridge. GSL.
Located in MELBOURNE, AU
This magnificent Australian Black Opal is from Lightning Ridge, NSW It's of impressive & rarely encountered size: 9.20ct (17.13mm x 11.36mm x 7.41mm) It's Natural, of type 1, me...
Category

Early 2000s Australian Loose Gemstones

Materials

Opal, Black Opal

"Kimberley Heart" Pink Diamond - 0.34ct 2PP P2 Argye Certified
Located in ADELAIDE, SA
Rare and unique Argyle certified Pink Diamond. Round Brilliant Pink diamond weight: 0.34ct, colour: 2PP, clarity: P2. Argyle certificate ID Number: 325803 this is also laser inscribed on the girdle of the diamond. This diamond also comes with a GIA Coloured diamond report number: 2205642090. We have named this diamond the “Kimberley Heart” owing to the unique heart-shaped outline formed in the gap between two internal inclusions. The presence of this heart is quite remarkable, we have never seen a diamond quite like this. Australian pink diamonds...
Category

21st Century and Contemporary Modern Australian Loose Gemstones

Materials

Pink Diamond

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 Australian opals mesmerise with colours changing and shifting the gem moves with an unrivalled vibrancy. This opal was ethically sourced from Lightning Ridge mines in New South Wales. It is perfect for a bespoke ring or pendant. What makes Australian opal jewellery so alluring is that it guarantees that no one else will have the same piece. Each opal gem has a unique range of colours, patterns and colour-play. This particular gem displays a vivid red with a hint of blue and yellow play of colour. Surprise yourself or your loved ones with this one-of-a-kind opal, a special gift, which can become an amazing piece of jewellery to cherish and admire forever. Opal Minded offers custom opal jewellery design services. On-site and remotely. We can make your opal jewellery dream come true, with a concept developed in partnership and refined by our award-winning Creative Director Renata Bernard. PARTICULARS: Size & Stone Measurements: Opal Length: 10.36mm Opal Width: 9.07mm Opal weight: 2.16ct This unset opal...
Category

2010s Contemporary Australian Loose Gemstones

Materials

Opal, Black Opal

'Black Galaxy' 99.60ct Natural Solid Untreated Australian Black Opal
Located in MAIN BEACH, QLD
This gem opal is an extremely rare South Australian black opal. Rivalling the quality and colour intensity of the best black opals ever mined, this gem is a museum-grade opal. Almost...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

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 pattern of vivid colours, it is a true wonder. Each colour is as bright as the next ...
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

10.32ct Oval Cabochon Cut Loose Australian Opal. Valued at $10000.
Located in MELBOURNE, AU
Magnificent Loose Australian Jelly Opal of Cabochon Cut of oval shape of 10.32ct (26 x 14 x 4mm) exhibiting great play of colours (blue, green, yellow) Valued at $10,000.
Category

1980s Vintage Australian Loose Gemstones

Materials

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, Queensland displaying the superb & truly unique spectrum of colours: from striking Indigo & Sky Blue to superb vivid Emerald Green The beauty of this spectacular opal is truly dazzling, particularly under different lightings: the gem displays the most magnificent spectrum The gem can be set in precious metals & turned into a piece of jewelry (pendant for example) - please message us for details! Australian Boulder opal is the second most valuable type of opal. Mined from the large ironstone boulders under the ground, boulder opals are easily recognisable by the layer of solid brown ironstone...
Category

1980s Vintage Australian Loose Gemstones

Materials

Opal

Certified Parti Sapphire 2.25ct
Located in Antwerpen, BE
Sapphires, like Rubies, are a variation from the mineral species corundum, composed of aluminum and oxygen. It is a fascinating gemstone mined in Australia, Burma, Cambodia, Sri Lank...
Category

21st Century and Contemporary Modern Australian Loose Gemstones

Materials

Sapphire

Recently Viewed

View All