I keep reading that some simulants are so good that even experts have difficulty telling them apart from real diamonds.
So how can experts tell them apart? Is it a matter of looking for something specific? Or is it something very subtle that only comes after looking at thousands of different stones? Do you need some sort of device to tell?
I saw the suggestion in one article that you should put a stone on a black background, and if you see a lot of black showing through, then its a simulant. But I've learned from my research that this is no foolproof test, as a lot of black would show through in a poorly cut diamond, and the index of refraction of CZ is high enough that very little black would show through for a well cut CZ.
Thanks for any advice!
So how can experts tell them apart? Is it a matter of looking for something specific? Or is it something very subtle that only comes after looking at thousands of different stones? Do you need some sort of device to tell?
I saw the suggestion in one article that you should put a stone on a black background, and if you see a lot of black showing through, then its a simulant. But I've learned from my research that this is no foolproof test, as a lot of black would show through in a poorly cut diamond, and the index of refraction of CZ is high enough that very little black would show through for a well cut CZ.
Thanks for any advice!