What is CZ (Cubic Zirconia)?
CZ looks very similar to diamond and usually hard to distinguish the difference with the naked eye. CZ has many characteristics like diamond but at a fraction of the cost. CZ is slightly less brilliance (liveliness and sparkle) than diamonds, while having more fire (flashes of rainbow colors). CZ has a scientific hardness rating of 8.5 (vs. Diamond 10) on the Mohs’ scale, hence can scratch glass (hardness 6~7). CZ is about 75% heavier than diamond and comes in variety of colors. High Quality CZ is machine cut to exacting tolerances that duplicates the diamond-cutting process. Main sources of CZ are United States, Switzerland, Thailand and China.
