Moissanite is chemically different to diamond (SiC vs C), has a different crystal structure, and is less hard. You can also get actual lab-grown diamond, but they are quite expensive. But you probabaly won't be able to tell the difference anyway.

[–] hperrin@lemmy.world 15 points 1 year ago* (last edited 1 year ago)

Usually you can tell the difference. Lab grown diamond is pure while rock grown diamond is imperfect.

But you have to look at it under a magnifying glass to tell, and know what you’re looking for.

[–] ImFresh3x@sh.itjust.works 2 points 1 year ago

It’s like 93% as hard but has better better optical properties which is what matters.