Frequently asked questions

How do I identify laboratory-grown diamonds?

Because laboratory-grown diamonds are essentially chemically and optically the same as natural diamonds, traditional gemmological observations and instrumentation are not able to tell them apart. GIA uses sophisticated devices like the GIA iD100TM and other instrumentation to definitively identify natural diamonds. To confirm whether a diamond is natural or laboratory-grown, send it to a gemmological laboratory for examination and advanced testing.