Australian Boulder Opal – 10.38 ct – Double-Sided Cabochon

Natural 10.38 ct Boulder Opal with double-sided pattern. Beautiful color veins and untreated matrix—ideal for unique jewelry.

    Sale price $220.00Regular price
    Regular price $220.00
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    Birthstone
    Opal is the official birthstone for October, alongside tourmaline, and is also the gem of the 14th wedding anniversary. Its name comes from the Sanskrit “Upala,” meaning “precious stone,” and the Greek “opallios,” meaning “to see a change of colors.” This unique gem belongs to the silica group and is made up of microscopic spheres that diffract light, creating the beloved play-of-color. Long associated with luck and inspiration, opals remain one of nature’s most enchanting treasures.
    Gemstone Description
    This 10.38 ct Australian Boulder Opal is a natural, untreated treasure carved in cabochon cut. What makes it exceptional is its double-sided beauty: each face presents a distinct pattern, with dark matrix lines outlining flashes of beautiful color.

    The gem’s bold character, combined with its size and natural matrix, makes it a perfect centerpiece for artisanal jewelry. Whether worn in a pendant or statement ring, its color play and texture will add depth and intrigue.

    100% ethical and natural—this opal is both a conversation piece and a timeless treasure.
    Gemstone Specifications
    WEIGHT : 10.38 ct
    SIZE : 18.80 * 14.71 *4.96
    SHAPE : Cabochon 
    CLARITY GRADE : Opaque
    TREATMENT : Untreated
    HARDNESS : 5.5 - 6.5 
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