Diamond Identification and Fake Diamonds
With tons of imitation, synthetic diamonds pouring into the marker, it has become imperative to establish a few important methods by which real and natural diamonds can be distinguished from the 'cultured' kinds.
How to Identify Fake Diamonds
The Newspaper Test
One of the easiest and the simplest tests is using a newspaper to identify a read diamond. If a diamond, when placed on a newspaper, magnifies the text, you have a fake diamond with you. The reason is diamonds cannot be used as magnifiers. Their physical properties enable them only to refract light. Therefore, magnification is an impossible phenomenon to be observed in a natural diamond.
The Light Test
The second test is also easy and all you need is a source of focused light. A good torchlight or a penlight will also suffice. When light is passed through a real diamond, it produces a halo around it. However, a fake one will allow the light to pass right through it and the focused light will also be visible on the other side. Moissanite, one the most well-known diamond stimulants, can also be tested using this method. It is double refractive or anisotropic while diamonds are isotropic. A ray of light on passing through Moissanite produces a split rainbow-like effect while a real diamond throws light spots and scintillations. So, the light test is also based on the refractive properties of a diamond like the newspaper test.
Check the Setting
More obvious facts emerge on checking the setting of the diamond as well as the kind of metal that was employed in making it. Natural diamonds usually have what is commonly referred to as the 'open back' setting. Jewelers and diamond merchants also recommend this type of setting because it enhances the existing brightness of the diamond by allowing a larger amount of light to pass through. The refraction of light is better in an open back setting. Additionally, the metal used in the setting will be expensive and for a real diamond, platinum and 22K carat gold are the best options. So, if your closed back metallic setting contains 10 carat gold and holds a diamond, there is something wrong and you must get the diamond reevaluated.
Cubic Zirconia (CZ) vs. Natural Diamonds
Distinguishing Cubic Zirconia (CZ) and real diamonds is slightly trickier. Even trained professionals need some time to make a correct assessment when it involves this class of diamond stimulants. Cubic Zirconia looks a lot like a diamond because it is virtually colorless and shines with a lot of brilliance. However, close examination reveals that the color spectrum and the properties of light and color projection differ in CZ when compared with diamonds. CZ exhibits a wider color spectrum and sharper images when light is focused on it. Another good indicator is the weight. Studies show that between a diamond and Cubic Zirconia of the same size, on an average, latter always weighs two points more than the former gem in question.
Jewelers either use a small magnifying glass called a 'loupe' or a special microscope to closely study or examine a specific gemstone.
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