Moissanite is a rare, naturally occurring mineral also known as silicon carbide. Silicon carbide crystals are fashioned into moissanite gemstones that rival any earthly gemstone for fire and brilliance. These gems are more durable than diamond, sapphire, ruby or emerald. Adiamor's Premium Moissanite Collection offers Charles and Colvard Forever One Moissanite. Forever One is unparalleled lab grown moissanite at an accessible price.