Following the key differences between moissanite and diamond including durability, brilliance, color & Price.

MoissaniteLab Grown Diamonds
Durabilty On Mohs Scale of Hardness, Moissanite scores a 9.25. That makes it a second hardest stone on planet earth after diamond. Lab Grown Diamonds are the hardest known mineral and receive a 10 on the Mohs Scale of Hardness. Because of this exceptional score, diamonds are very durable and ideal for everyday wear.
Brilliance Moissanites exhibit a different kind of brilliance, as their faceting pattern is different. The fiery, rainbow flashes emitted by moissanites are beloved by some, but others complain that moissanite’s heightened brilliance can create a “disco ball” effect, especially in sunlight. Diamonds reflect light in three different ways. The white light reflected back is referred to as brilliance, while the rainbow of colors refracted through the diamond is referred to as dispersion. The surface sparkle of a diamond, known as scintillation, is a third type of diamond light return. The combination of these three gives diamonds their famous sparkle.
Color Moissanites are mostly “colorless” but still project a yellow or greyish hue in certain lights. Here again, the larger the moissanite, the more noticeable the color and the easier it is to identify it as a simulant. A colorless Lab Grown diamond, has a natural body color that contains no traces of yellow, brown, or grey, resulting in a dazzling, bright white appearance.
Price Moissanite gems typically vary in price only based on size and whether the stone is Forever Brilliant or Forver One. Moissanite are relatively cheaper than Diamond and Lab Grown Diamonds. Lab created diamond prices vary based on shape, carat, cut, color, and clarity. Lab created diamonds are more affordable than natural diamonds.