9 Cubic Zirconia Necklaces Designs

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Cubic Zirconia is well known as a substitute for diamond, due to its high hardness and great fire. But in recent years, it has established itself as a gorgeous gem in its own right. CZ is a beautiful synthetic gemstone that is durable and inexpensive and now even comes in any color of the rainbow, making it even more desirable. Cubic Zirconia is a cubic form of zirconium oxide that is created in a laboratory, thus it is not a mineral. However, it was found naturally occurring once at one site in the 1930's, To the untrained eye, cubic zirconia looks identical to a good quality diamond, but CZ has slightly less brilliance or sparkle than a diamond and more fire or flashes of color. The overall effect is so similar that it can even fool a trained gemologist on occasion. One great difference between cubic zirconia and diamond is weight; CZ is about 75% heavier than diamond.