Cubic Zirconia ?

What is Cubic Zirconia? Cubic Zirconia or CZ is the cubic crystalline form of zirconium dioxide (ZrO2). It is a synthetic gemstone that looks very close to diamonds. CZ is very popular among the silver and gold jewelry due to their startling diamond-like appearance and inexpensive price tag.

Scientists from German & Soviet had done an experiment and found that zirconium oxide and yttrium oxide were melted together at temperatures 2,750ºC to grow Cubic Zirconia. CZ can also be made in any color and it is brighter than crystal. Besides, CZ is heavier and a higher dispersion rate than a diamond. When there is a light shines on CZ stone, it sparkles with many different colors and it looks fantastic.