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Step 1
If the diamond in questions is loose or unmounted,place the gem over some print. Diamonds are known for refracting light. They refract so much light that you would not be able to see any lines,letters,or circles through the stone. With other clear stones like glass you would be able to see right through.
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Step 2
Take a very small form of light such as a pen flashlight(maybe you have one on your key chain).Shine the light on the gem. You should not be able to see the light on the other end. You should only see a bright halo around the rim.
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Step 3
Diamonds are also greatly known for conducting heat. Try breathing on the gem and immediately check to see if it has fogged up. Quartz, glass, and cubic zirconium will stay hazy for a moment before the condensation dissipates, but you shouldn't be able to see any moisture on a true diamond. A true diamond will show no moisture. There is another rock, called moissanite, will also pass this test, so the best way is to get a complete thermal conductivity evaluation performed by a jeweler.
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Step 4
Pay close attention to your stone. Pay extra attention to the specks, ridges, and facets of the gem. Diamonds do have inclusions, tiny bits of other minerals that got crushed into the diamond while it formed deep under the earth. If the facets have worn or rounded edges, bubbles, or if the gem looks rippled or pitted, it is probably glass. Those gems that are perfectly clear, with absolutely no inclusions, are probably quartz.
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Step 5
Use common sense before making such a purchase. As with almost any shopping experience, you get what you paid for. A diamond that is too inexpensive should raise red flags. Diamonds are usually mounted in an "open back" setting. This would means that you can see around the rear of the gem and the back surface isn't coated with any silvery substance.
Comments
NuttyMomma said
on 3/14/2009 excellent diamond jewelry tips! 5*