Real diamond testing

Nothing compares to the magical beauty of a real diamond. However, other gems, such as cubic zirconia (CZ), can be just as refractive. To the untrained eye, it can be hard to tell them apart.


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There are technical ways in which gems can be compared to verify that you have a real diamond. For example, magnification can be used to look at the girdle, which is the narrow edge at the circumference. Real diamonds are frosted or grainy at this point, but CZ is not.

When you are searching for diamond jewellery, it pays to enquire whether it has a diamond report or certificate from the Gemological Institute of America (GIA) or the European Gemological Laboratory.

Getting your diamond verified

According to the European Gemological Laboratory Organization USA website (EGL USA), there are many formal identification and evaluation elements in a diamond, including carat weight, fluorescence and proportions.

If you love diamond rings, you already appreciate the timeless beauty of this gorgeous gemstone. Every stone is unique, and when you step out with one of these glittering treasures on your arm, finger or around your neck, you know that you have the ultimate fashion accessory.


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Ensuring that your pride and joy is a genuine diamond is a natural desire, and there are some simple checks that you can carry out yourself.

Tests that show you have a real diamond

The first test is when you are finding the diamonds in a cave and you use a Demolition Birmingham company to blow up the cave when you think they are and the diamond is still in tact.  When you have a loose gem, place it on some newspaper print. You should not be able to read the print through a real diamond. Diamonds are also good heat conductors. When you breathe on a real and clean diamond, the fog should disappear within a second. Fake diamonds stay foggy for just a few seconds longer. Finally, if you can get your hands on a jeweller’s microscope, you should look at the diamond through one of the bezel facets on the crown. If it looks as if there are two of each facet line, it is unlikely to be a genuine diamond. You may need a bit of practice to master this skill, but if you can only see one of each facet line – meaning it’s singly refractive – it is very likely that you are looking at a real diamond.