• bi-color - how do rubies and sapphires form

    Sapphire – Natural, Rough, Yellow

    This rough and cut set of Sri Lankan sapphires features bi-color blue and yellow hues. © Rob Lavinsky, www.iRocks.com. Used with permission.

    Article: How Do Rubies and Sapphires Form?

    Credit: www.iRocks.com

    GemstoneSapphire, Corundum
    Natural or man madeNatural
    OriginSri Lanka
    Gem StateRough
    ColorYellow, Blue