It is most likely easy for an expert to spot a fake diamond either because he has studied them for who-knows-how-long, some fake diamonds have very poor qualaties that he has been trained to recongnize or that what ever it has been set into is fake also (EX: Ring band, earring, bracelet, neckalace). Hope this helps.
One way to spot a fake diamond is to check the diamond's clarity and color - fake diamonds often have imperfections and lack the sparkle of real diamonds. You can also use a loupe to look for any imperfections that are typical of lab-created or synthetic diamonds. Finally, taking the diamond to a professional appraiser or jeweler for testing can confirm its authenticity.
There are a couple of different ways to spot a fake diamond. Typically fakes are cubic zirconia and these stones are 1) heavier than a diamond that is the same size, 2) can't be cut as sharply as a diamond, and 3) can scratch much more easily.
Well, if it is nice and bright and shiny, its obviously a fake. Otherwise, it is difficult for the average person to spot a fake one. This because an authentic Roman coin would more than likely have been used and may show wear by having its inscriptions worn or its shape distorted. It is best to have an expert appraise the coin
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One way to spot a fake Christian Audigier is to look at the graphics. If the graphics are blocky or thick, it is a fake.
On ebay you can find guide in "how to spot fake replica emporio armani watches ceramic ar1400/ar1410" this guide will tell you how to spot any fake armani model.
You can spot if a tech deck is fake when it does not have the grip tape, and if there are pictures on both sides of your tech deck.
There is a great guide on how to spot fake Oakley sunglasses at:Please see related link below!
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There is no way a visitor can spot fake security cameras without taking the camera apart. There is no clear way of seeing that a camera might be fake when looking at it.
there is no best spot