'Black Galaxy' 99.60ct Natural Solid Untreated Australian Black Opal

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...

This pear-shape stunning Australian Black Opal displays a vivid Blue-Green Play-of-Color Phenomena in a unique Chaff and Harlequin Jigsaw pattern. This unique gem weighs 8.11ct and m...

This captivating collector's gemstone features a 2.65ct natural opal, masterfully finished into a classic oval cabochon that showcases a dramatic and mysterious aesthetic. Verified b...

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 t...

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...

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 r...

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...

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

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...

A beautiful gem Australian opal takes center stage of this well-made platinum ring. It weighs an impressive 9.30 carats and has excellent play-of-color. The opal has a very strong pi...