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Approaches to tell if your stone is real or artificial.

1) Never look at a loose diamond on a white jewelers'tray. Always look at it on an item of paper or printed material. If the diamond is real, you will not have the ability to read the newspaper through the facets; if the diamond is fake, it is the same as looking through, well, glass.

2) Among the best test is thermal conductivity. Diamonds are really good conductors of heat and many dealers have a small instrument that will measure this. No other substance will match a stone in this test.

3) The fog test. I am tested by this like a lot. Put the rock in front of your mouth and fog it as if you would make an effort to fog a mirror. If it keeps fogged for 2 to four seconds, its a fake. An actual diamond disperses heat instantaneously so by the full time you look at it, it has already solved. (Sometimes oil and dust on the stone can effect its stability and the test is not appropriate at all on doublets where in actuality the top of the stone is diamond and the bottom is cubic zirconia epoxied together.)

4) Beneath the loop test. There are on the stone that might hand out its identity: some things you can try to find, if you possess some kind of magnifying lens

A. Consider the steel from the top and observe how well the sides (pieces on top of the diamond) are joined. They must be sharp not explained.

B. Consider the girdle and see if it's faceted or frosty (a clear sign its a stone) or slick and waxy (an indication its a fake).

D. While youre considering your stone under magnification, consider your stone to see if any flaws are detected by you (carbon, pinpoints, small breaks). These are generally clear clues its the genuine article since its quite difficult to place inclusions in a fake.

D. After examining the stone, focus in on the stamps inside the environment. A press of "10K, 14K, 18K, 585, 750, 900, 950, PT, Plat" implies the environment is real gold or platinum gives a better chance that the rock in it is real as well. While youare considering the inside of the ring, also look for any "C.Z." stamps that would indicate the center stone is not a stone. continue reading