• disclosing enhancements - tourmaline

    Tourmaline – Natural, Rough, Green

    Properly disclosing enhancements to gemstones can be challenging. Some common treatments leave no traces. For example, undetectable heat treatments can lighten blue and green tourmalines.

    Article: Disclosing Enhancements: A Gemologist’s Guide

    Credit: tourmalines

    GemstoneTourmaline
    Natural or man madeNatural
    Gem StateRough
    ColorGreen, Pink
    TransparencyTranslucent
    Multi-colorBi-color