Fluorescence is the ability of a mineral to turn incoming light of ultraviolet color into light of a visible color. Many diamonds have a blue fluorescence that can make a pale yellow stone look whiter, which is desirable. Fine rubies fluoresce red, giving their color an extra glowing redness. Discover @ www.multicolour.com or #gemstones #ruby #fluorescence Amethyst

Fluorescence is the ability of a mineral to turn incoming light of ultraviolet color into light of a visible color. Many diamonds have a blue fluorescence that can make a pale yellow stone look whiter, which is desirable. Fine rubies fluoresce red, giving their color an extra glowing redness. Discover @ www.multicolour.com or #gemstones #ruby #fluorescence