How do you know the CVD diamonds

There are too many different quality diamonds in the market, real diamonds, CVD diamonds, and Moissanite, even zircons. So how to distinguish them?

A CVD diamond (also known as a laboratory-grown diamond, a cultured diamond, or a cultivated diamond) is a diamond produced by a controlled process, as contrasted with a natural diamond created by geological processes or an imitation diamond made of non-diamond material that appears similar to a diamond.

The only difference between CVD Diamonds to make panthere de cartier ring replica and mined diamonds is the point of origin. Where Mined diamonds take millions of years to grow under the earth, whereas CVD Diamonds are a high technology product that grows in a matter of weeks.

So do you know how to find a difference?