Black Diamond
Black Diamond
 752 CTS NATURAL BRILLIANT CUT COAL BLACK DIAMOND US $1,799.99 
|
 050Ct Natural Real Black Color Rose Cut Diamond US $72.00
|
 149ct Loose Natural BLACK Diamond US $192.45
|
 NATURAL DIAMOND JET BLACK COLOR 379 CARAT 920 MM for Queen SJ200 US $349.00
|
 NATURAL DIAMOND JET BLACK 441 CARAT 1055 MM for king ring SU38 US $389.00
|
 NATURAL DIAMOND JET BLACK COLOR 263 CARAT 852 MM WITH OPAQUE CLARITy SU09 US $229.00
|
Black Diamond
How do you tell if a black diamond, really is a black diamond, and if gold is real?
Just wondering how to tell a genuine black diamond from a fake and also how to tell real gold from fake gold.. (gold in question here is 10K yellow gold)
Thanks
Myles - You once told me you may follow me around with stupid comments - seemsyou lived up to your promise...
For the rest of you, I am 24 and have bought a ring for my mother - it wasnt cheap. Im fairly sure its real but I wondered if there were any little trick tests I could do.
I tried to scratch it with a very sharp kitchen knife and I couldnt scratch it at all, it didnt even mark it...
***Tips to know real black diamond methods:
***methods to know black diamond is real:
1. If you have access to a diamond tester, you can test for diamonds vs. simulants. (Beware, moissanite is the only stone than can fool the electronic diamond tester.)
2. The transparency test. Flip your diamond upside down and place it over some newsprint. If you can clearly read through the stone, it's not a diamond. (Beware, some low cut diamonds or stones such as emeralds can be read through.)
3. The fog test. Put your diamond in front of your mouth and fog it like you would fog a mirror. If it stays fogged for 2-4 seconds, it's a fake. A real diamond will disperse the heat instantaneously so by the time you look at it, it has already cleared up. Oil and dirt on the stone can affect reliability and the test is not accurate at all on doublets where the top of the stone is diamond and the bottom is cubic zirconia glued together.
4. Test for weight. The most popular diamond simulant (fake) is a cubic zirconia. C.Z.'s will weigh approximately 55% more than diamonds for the same shape and size. Use a carat or gram scale to see if the impostor tips the scales too much.
5. The U.V. test. Many diamonds will show fluorescence of blue if put under an ultra violet light or black light. 99% of all fakes don't do this; so, a positive identification of medium to strong blue would indicate a diamond. Diamonds with blue fluorescence can be as much as 20% less valuable; however, lack of blue fluorescence doesn't mean it's a fake; it could be a better quality diamond.
6. The under the loop test. With a magnifying lens, there are some things you can look for on the stone that might give away its identity:
6. 1) Look at your diamond from the top and see how the facets (the cuts on top of the diamond) are joined. They should be sharp but not rolled.
6. 2) Is the girdle faceted or frosty (yes, then it's a diamond) or waxy and slick (yes, then it's a fake.)
6. 3) Under magnification, look into your diamond for flaws (carbon, pinpoints, small cracks.) It's very hard to put inclusions into a fake.
6. 4) Look at the stamps inside the setting. A stamp of "10K, 14K, 18K, 585, 750, 900, 950, PT, Plat" indicates the setting is real gold or platinum. This gives a better chance that the stone in it is real as well. Look for any "C.Z." stamps. This will tell you the center stone is not a diamond.
***Tips to know real gold methods:
***methods to know real gold is real:
Real gold has a better shine than a fake one. Otherwise, one common method is a chlorine test. Real gold changes its color when in contact with chlorine. However, if you want to avoid the risk of damaging your gold, the best way is to have it tested. That means an acid test or a test using one of the newer electronic gold testers some jewelers use.
Stratovarius - Black Diamond