Unlike diamonds, moissanite is sized in millimeters. Moissanites are measured as such because they weigh less than an actual diamond.



So how will this affect my purchase?

Moissanites are priced based on their measurements. No matter the weight of the stone, they are sold strictly on the measurements. The moissanite stones may measure different in weight but will measure close or the same in diameter.



Do carats still apply to moissanites?

this is a yes and no answer. Let us explain! All stones have a carat weight but are sold in different ways. Moissanites are sold by their calibrated size, not by their weight. On the other hand, diamonds are sold by the carat weight.