... of XDGems are waiting for you. Gemstones Specification Material:Cubic Zirconia(aka CZ), Corundum, Ruby, Sapphire, Spinel, Glass ... olive, peridot, yellow, champagne, coffee, aquamarine, tanzanite, lavender.More colors and more accurate please check XDGems Color Card ... economically important competitor for diamonds since 1976. Cubic zirconia is crystallographically isometric, an important attribute of ...