I found a diamond and I need to know how to find out if it is real. Aside from cutting glass with it, what can I do to know if it is genuine?|||Go to a jewelry store and ask them, or to a pawn shop haha.
xx-Cody|||go to a jeweler|||get it appraised|||Put it under a light. if you can see the surface of the object (your so called diamond) then its a diamond, also if you can see more than 7 colours when you turn it.|||Is it cloudy? does it have a hole in the ring underneath so the diamond can breathe? Try to break it...if it does its most likely fake...|||bring it to a jewelers or pawn shop, i'm not sure where they do that, to see if its real or not.
where did you find it?|||if you look in the middle it will look really deep and sparkle alot|||you can take it to any jewelery store and they can take a look at it and tell you.
Diamonds do scratch glass, but so do many imitation stones.
Not a lot of fake diamonds can scratch sandpaper.
Look through it. Diamonds have a high "refractive index" (meaning they sharply bend the light that passes through them). Glass and quartz have a lower refractive index, meaning they sparkle less because they bend light less, even when they've been cut nicely (because the refractive index is an inherent physical property [2] which is not altered in any way by a nice cut - unless, technically speaking, the cut induced a permanent strain on the crystalline lattice).
If the diamond is not mounted, turn it upside down and place it on a piece of newspaper. If you can read the print through the stone or even see distorted black smudges, then it probably isn't a diamond. **Unless the cut is disproportionate, in that case print can be seen through a real diamond.**[3]
If the stone shows any sign of double refraction, it may be Moissanite (silicon carbide), a gemstone that is so similar to a diamond that even jewelers can have a hard time telling them apart. **look at the facet junctions fron the top side of the stone, the 'star' facets' if you see what looks like double vision then that is the doubling effect.[4]
If the diamond is mounted, you should not be able to see the bottom of a diamond looking directly from the top.[5]
Draw a small dot with a pen on a piece of white paper. Place your unmounted diamond over the center of the dot. Look directly down on it and if your stone is not a diamond, you will see a circular reflection in the stone.
Observe the reflections. A real diamond's reflections usually manifest in various shades of gray. If you see rainbow reflections, you're either dealing with a low-quality diamond or a fake.[6]
Take the bottom view: Under a microscope hold the stone table(top facet) down. If you see an orange flash only to the facets as you rock the stone it is fake.[7]
Buy a Diamond Tester. These are readily available and can quickly indicate if is a true diamond or simulant.
Weigh the stone. Cubic zirconia weighs approximately 55% more than diamonds for the same shape and size.[8] Use a carat or gram scale to compare the stone in question to a real diamond.
Check the setting and mount. A real diamond is not likely to be set in a cheap metal.[9] Stamps inside the setting indicating real gold or platinum (10K, 14K, 18K, 585, 750, 900, 950, PT, Plat) are a good sign, while a "C.Z." stamp will give away that the center stone is not a real diamond.[10]
Put the stone under a UV light. Many (but not all) diamonds will exhibit blue fluorescence under an ultra violet or black light, so the presence of a medium to strong blue confirms that it is real. The absence of blue, however, does not mean it is fake; it could simply be a better quality diamond.[11] If you see a very slight green, yellow, or gray fluorescence under ultraviolet light, it may be Moissanite.[12]
Test it with a heat probe. Real stones disperse heat quickly and they won't heat up with the probe. This takes about 30 seconds and is often done free of charge. It also doesn't hurt the stone the way some other ways of testing will.
Have the diamond x-rayed. Real diamonds do not show up on an x-ray, glass, cubic zirconium and crystals all have slightly radiopaque quailities, diamonds are radiolucent.
Use a jeweler's loupe to inspect the diamond. Mined diamonds usually have small imperfections or inclusions that can be seen this way. A CZ does not have these imperfections. For that matter, lab-grown diamonds (which should pass all of the other tests) usually don't have imperfections either.
Put the diamond in some water. If it is real it will sink, and if it is fake it will float.
Put the stone in your mouth and breathe on it. If the stone stays "foggy" for 2-4 seconds, then it is not real. Real diamonds will have cleared by the time you look at them. Be warned though - some jewellers cap cubic zirconum bases with real diamond which will of course clear.|||You need to have it checked out-most jewelry stores that do repairs could tell you. I mean I could say check for doubling, (assuming it's cut) the sharpness of the facet junctions, the fire, ect., but unless you have experience checking for these it is unlikely you'll really be able to tell. Most places that do repairs also have a tool called a "diamondsure" that checks whether or not a stone is a diamond-however if they are using this method make sure it's a fairly new machine as the older ones sometimes call synthetic moissanite diamond (very close to diamond in hardness, but has too much fire, and is doubly refractive). You shouldn't be charged. Of course this won't tell you whether or not it's synthetic or natural-just whether or not it is a diamond (and I assume you are wondering about the price) first check if it's a diamond, from there if you want to know more just ask-I worked as a diamond grader for awhile.|||The truth of the matter is that in order to find out if it is genuine, you will need to take it to a jeweler that has a diamond tester. It's an electronic device that tells you if it's genuine or not.
There are many "home" tests and tricks out there such as the ones that the other answerers have given you, but I wouldn't recommend them. There are so many new, advanced types of stones out there that look and behave much like diamonds do, and for an amateur, it can be really hard to tell the difference (and even some jewelers).
Also, do you really want to try to break the thing to see if it's real?? Don't forget that though people say that only a diamond can break another diamond and this is true, genuine diamonds that have inclusions and other faults will definitely break if you try! That would be a real shame- if you broke it trying to figure out if it's real...|||A gemologist should be able to help you better.
Dhruvika
http://www.myjewelersplace.com/
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