• oval cabochon opal

    Opal Stone

    Oval cabochon-cut opal, 7.41 cts. Photo courtesy of liveauctioneers.com and Henry's Auktionshaus AG.

    Article: A Consumer’s Guide to Gem Grading

    Credit: Henry’s Auktionshaus AG

    GemstoneOpal Stone
    Natural or man madeNatural
    Carat Weight7.41
    Gem StateCabochon
    ColorWhite
    TransparencyTranslucent
    Photo phenomenaPlay of Color