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    Sep 13

    2196315307_dcd0ba4450There could be a whole lot of reasons why you are wondering whether the ring or ear rings that you bought has genuine diamonds or are in fact cubic zirconia. However, you can soon be put at rest because there are plenty of tests that can be conducted to prove the differences between genuine diamonds and cubic zirconias.

    One of the first tests that is usually conducted by most people is the Scratch Test. However, this traditional test has been found wanting as it isn’t really accurate as it was thought to be at one time. This is because it has been proved by modern technology that good quality cubic zirconium can also scratch glass like diamonds. Moreover you don’t really want to cause any damage to your real diamond with the Scratch Test and lower its value in addition to spoiling its beauty!

    It is therefore necessary to try the Transparency Test. Real diamonds will not allow you to read a print on a newspaper as clearly as a fake can. However, this test can prove to be inaccurate if the cut is too shallow (as this will make it easier to read through) and the diamond should be a loose one.

    Another similar test is the Fog Test. A real diamond does not hold any heat and if you breathe on it, it should not stay foggy but will disperse the heat and get clear. A fake diamond will turn foggy. The diamond should be clean of any natural oils or dirt before you conduct this test. It will show you whether your diamond is really a cubic zirconia.

    The Weight Test is another test that can determine if your diamond was genuine or cubic zirconia. You will have to have the necessary equipment though. The fact is that cubic Zirconia does weigh more than a real/genuine diamond (almost double) and will definitely show on the scales accordingly. The best way to conduct this test is to buy a cubic zirconia which is of the same dimension, shape and size as the real diamond and weigh both of them on the gram scale to prove which one is heavier. It goes without saying that you should get the item that is very similar for achieving the best results.

    The Ultraviolet Test is another way to determine the genuineness of your diamond. Once again, appropriate equipment will be necessary. The Ultra Violet Test is pretty accurate because of the fact that cubic zirconia does not give off the same type of fluorescence color whereas a genuine diamond gives off a very strong blue colored fluorescence when it is held under black light. Therefore if the diamond does not give off any blue it is fake.

    The Loop Test is conducted with the help of a magnifying glass. During this test, one can inspect closely various characteristics of the stone like the girdle appearance and the joining of the facets etc. A frosty girdle will tell you that it is a diamond while a slick and waxy girdle will tell you that it is most likely a fake. You can also check if the stone has the letters “C.Z” stamped inside the ring, which obviously would indicate that the stone is a cubic zirconia.

    A simple test called the Dot Test is also used to determine the authenticity of a stone. Diamonds are able to reflect light through the table (top of the stone) while a cubic zirconia reflects the light in a different manner as it is transparent. All you have to do is draw a tiny dot on a white paper and place the stones face down over it. You will not be able to see the dot through the diamond while you will be able to clearly see the dot through the cubic zirconia.

    It should be noted that even though most of these tests mentioned above are commonly used to determine the difference between a cubic zirconia and a genuine diamond, they cannot be deemed completely “fool proof”. It is therefore necessary to consult a professional before you make a decision about your stone. Professional jewelers can quickly and easily tell you if your stone is a fabulous imitation or you have the real thing!

    One Response to “Testing Cubic Zirconia”

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