Buy Cubic Zirconia Stone Online | American Diamond, CZ ...
Cubic Zirconia Quality. The quality of CZ stones (American Diamond) depends upon its Cut, Color and Clarity. The best Cubic Zirconia gemstones are clear, highly transparent and have uniform color. In fact, you cannot distinguish a Cubic Zirconia from a natural Diamond with the naked eye. The stone should not have flaws or internal inclusions.