By the way artificial diamonds and synthetic diamonds are the exact same thing:

> A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond.

Artificial also means non natural, not necessarily a mock or something that behaves like something else:

> made or produced by human beings rather than occurring naturally, especially as a copy of something natural