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CZ= Cubic Zirconia Cubic Zirconia is a man-made imitation diamond.
Cubic zirconia (or CZ), is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically...
Certian types of low karat gold may be alloyed with semi-precious metals such as silver, copper, iron or staimless steel. Also, white gold is sometimes alloyed with silver. The higher the karat of...