10 Carat Australian Boulder Opal Freeform Cabochon

Mexico Opal is composed of hydrated silica. It is an amorphous silicate, meaning it does not form crystals. Opals are structurally composed of tiny spheres of silica which, when arranged in perfect geometry, create the famous play of color associated with the stones. The symmetrical arrangement of silica balls acts like a prism, which allows the rainbow spectrum of colors to be visible to the naked eye. Fire opal is a transparent to translucent opal with warm body colors of yellow to orange to red. Although it does not usually show any play of color, occasionally a stone will exhibit bright green flashes. The most famous source of fire opals in Mexico is in the state of Queretaro; these opals are commonly called Mexican fire opals. Fire opals that do not show a play of color are sometimes referred to as jelly opals. Cantera opal...

This impressive 120.4 carat natural Fluorite gemstone is a museum-caliber specimen showcasing the stunning luminosity and color zoning for which Fluorite is prized. With remarkable c...

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 boulder opal was ethically sourced from Winton mines in Queensland. It is perfect for bespoke earrings. 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, pattern and colour-play. This particular gem displays an arresting colour pattern of blues and greens. 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 weight: 7.88ct Opal length: 19.97mm Opal width: 11.02mm Opal Thickness: 4.48mm This unset opal...

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...