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The days of cubic zirconia being a cheap replica cartier 20060d6 watch substitute has long gone and it has become a beautiful stone in its own right. Today many top jewelry designers are using cubic zirconia as a favorite to make beautiful jewelry, at a affordable price.It was first discovered by two German Mineralogist in 1937, it was not until the 1980 that cubic zirconia took off commercially when it went into mass production for the retail market.To the untrained eye it is very hard to tell the difference between a cubic zirconia and a natural diamond however a cubic zirconia can be seen to have a slightly less brilliance than a natural diamond and seem to have more fire than a natural diamond, the difference is very slight and even for someone with a trained eye they can be wrong at times.Most cubic zirconia are created flawless unlike natural diamonds that have imperfection and impurity, although now they are available with man made imperfections which makes it harder to distinguish from a real natural diamond. Also manufactures have developed ways of improving a cubic zirconia by coating the stone with a film of diamond-like carbon (DLC) resulting in a harder, more lustrous stone, due to the high percentage of diamond bonds within the (DLC), the finished cubic zirconia will be very difficult to distinguish from a real natural diamond.The quality of a cubic zirconia is determined the same way as a diamond, we use the four C (cut, colour, clarity and carat) to grade the quality and value of a cubic zirconia, The difference between cubic zirconia and a natural diamond is the weight, a cubic zirconia is about 75% heavier than a natural replica cartier 20060d6 watch, that is why when purchasing cubic zirconia you would buy by the physical size rather than the carat weight as you would when purchasing natural diamonds.As with natural diamonds, cubic zirconia can be cut into any shape, whether it be a brilliant round cut or a nice heart shape any cut you desire is possible, also as cubic zirconia are synthetic they can be made in almost any colour red, yellow, pink, green, blue and violet, and a variety of shades are available.Cubic zirconia are quite a hard stone witch makes it a good stone for everyday wear, they rate around 8 to 8.5 on moh scale of hardness replica cartier 20060d6 watch.