...tom science
2006-07-29 06:37:03 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Fake diamonds can be detected like it says in the link from CodeRed.
Manufactured diamonds are also called fakes, by some people. The first manufactured jewelery diamonds had a different molecular structure and would glow under UV-light.
More resent manufactured diamonds have the same structure as natural diamonds and can only be spotted by the fact that they are more perfect than most natural diamonds. They don't have impurities and cracks.
De Beers Group owns most of the worlds diamond mines and they of course call all manufactured diamonds fake. If people would accept manufactured diamonds as real, all of De Beers diamond mines would be worthless.
I guess it is up to each person has to decide if he or she prefer a natural diamond, or a more perfect and cheaper manufactured diamond. I would prefer a manufactured diamond and I don't like that De Beers calls these diamonds fake.
2006-07-29 09:33:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The way that you can tell a diamond from a synthetic is to measure its thermal conductivity. One of the unique features of a diamond is that its thermal conductivity is much higher than any other material, natural or man-made. Jewelers use a diamond tester that measures the thermal conductivity of the stone. It is completely nondestructive and only requires the sensor to make contact to the surface of the stone.
Other methods are not reliable. There are synthetics now that match the "brilliance" (high index of refraction) of diamond. And there are other clear materials that will also scratch glass. Diamond, for all of its hardness does "cleave", so no jeweler would want to chance destroying a diamond by doing a scratch test.
2006-07-29 17:57:33 · answer #2 · answered by amused_from_afar 4 · 0⤊ 0⤋
You could measure the index of refraction of the substance in question. Real diamonds have a high index of refraction and are consequently more "sparkely" because of internal refraction. If a jewel isn't very "sparkely" then it probably isn't a diamond.
2006-07-29 13:15:29 · answer #3 · answered by Link 5 · 0⤊ 0⤋
use a diamond tester. the real diamond have a different molecular structure. because real diamond is harder than fake diamond or a electron microscope to check
2006-07-29 06:42:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
A real diamond will scratch glass or for that matter virtually anything.
2006-07-29 06:45:52 · answer #5 · answered by ag_iitkgp 7 · 0⤊ 0⤋
diamond will cut glass a fake one will not
2006-07-29 06:41:25 · answer #6 · answered by lefang 5 · 0⤊ 0⤋
A diamond can cut glass. no other element on earth can cut glass as precisly as a diamond can.
2006-07-29 06:40:43 · answer #7 · answered by fatwhale90 4 · 0⤊ 0⤋
I heard one way of telling has to do with the prongs. Just take it to a jeweler.
2006-07-29 06:40:34 · answer #8 · answered by just me 5 · 0⤊ 0⤋
I'm not a jewellary expert but I guess you can find the perfect answer here...
2006-07-29 07:56:28 · answer #9 · answered by CodeRed 3 · 0⤊ 0⤋