• gemstone grading - diamonds and tourmaline

    Tourmaline – Natural, Faceted, Pink

    White gold ring with tourmaline and diamonds. Photo by Matt Billings. Licensed under CC By 2.0.

    Article: An Introduction to Gemstone Grading

    Credit: Matt Billings

    GemstoneTourmaline
    Natural or man madeNatural
    Jewelry typeRing
    Gem StateFaceted
    ColorPink
    TransparencyTransparent