• trillion shape

    Tourmaline

    For trillion shapes, you may prefer slightly rounded edges like this one instead of a straight-sided triangle. © The Gem Vault. Used with permission.

    Article: Tourmaline Engagement Ring Stones: the Ultimate Guide

    Credit: The Gem Vault

    GemstoneTourmaline
    Natural or man madeNatural
    Jewelry typeRing
    Gem StateFaceted
    ColorGreen
    TransparencyTransparent