• phosphorescing diamonds - gemstone luminescence

    Diamond – Natural, Rough, Green

    These yellow diamonds fluoresce magenta or green under UV light. When the UV light is turned off, they phosphoresce a soft green color afterwards. Diamonds phosphorescing (crystals approximately 1 to 1.5 mm in size), Democratic Republic of the Congo. Photo by James St. John. Licensed under CC By 2.0.

    Article: What is Gemstone Luminescence?

    Credit: James St. John

    Natural or man madeNatural
    OriginCongo, Democratic Republic of the (Zaire)
    Gem StateRough
    Photo phenomenaGlow in the Dark