• diffusion treated sapphire - Madagascar

    Sapphire – Natural, Faceted, Blue, 4.47 ct

    This 4.47-ct sapphire from Madagascar has poor meetpoints. Unfortunately, since it's diffusion treated, you can't recut or re-polish this stone. Photo courtesy of liveauctioneers.com and Gems Treasure.

    Article: How to Test for Diffusion Treated Gems

    Credit: Gems Treasure

    GemstoneSapphire, Corundum
    TreatmentsLattice Diffusion
    Natural or man madeNatural
    Carat Weight4.47
    Gem StateFaceted