• Black Opal ring 2 - opal gems

    Black Opal – Natural, Cabochon, Black, 10 ct

    Black Opal, Australia, position #2, (stone in ring approximately 10 cts). Photo © Joel E. Arem, PhD, FGA. Used with permission.

    Article: Opal Stones and Gems: Value, Price, and Jewelry Information

    Credit: Joel E. Arem

    GemstoneOpal Stone, Black Opal, Precious Opal
    Natural or man madeNatural
    Carat Weight<i class="fa fa-square-o facet-search-color-swatch" style="color:#FFFFFF;-webkit-text-stroke-width:1px;-webkit-text-stroke-color:black;"></i> Colorless
    Jewelry typeRing
    Gem StateCabochon
    Photo phenomenaPlay of Color