• boulder opal rough - opal engagement ring stone

    Opal Stone – Natural, Specimen, Blue

    Boulder opal rough, thin opal layer attached to original matrix, 6 cm in length. Photo by Hannes Grobe. Licensed under CC By-SA 2.5.

    Article: An Incredible Union of Colors: Choosing Opal Engagement Ring Stones

    Credit: Hannes Grobe

    GemstoneOpal Stone
    Natural or man madeNatural
    Gem StateSpecimen
    ColorBlue, White
    Photo phenomenaPlay of Color