• gemstone birefringence - zircon

    Zircon – Natural, Faceted, Brown

    Natural zircon (not to be confused with cubic zirconia) has been used to create convincing diamond imitations. However, this gem is doubly refractive and has a high birefringence. Diamonds have no birefringence. 2.35-ct radiant step emerald-cut zircon. © Dan Stairs Custom Gemstones. Used with permission.

    Article: What is Gemstone Birefringence?

    Credit: Dan Stairs Custom Gemstones

    Natural or man madeNatural
    Gem StateFaceted
    Photo phenomenaBirefringence