Moissanite is a semi-precious gemstone that’s usually colorless. Other natural moissanite colors include black, yellow, and green.
 
As a diamond alternative, moissanite is a more affordable April birthstone and Aries zodiac stone. Though, moissanite’s intergalactic origins mean it benefits any zodiac sign!
Another substitution option is diamond’s place as the traditional 60th wedding anniversary gemstone. Speaking of weddings, is moissanite okay for an engagement ring? Definitely! Moissanite rings are top-tier alternatives. Check out our moissanite vs. diamond guide for a full breakdown!
 
Moissanite Specifications & Characteristics
What is moissanite made out of? The moissanite chemical formula is SiC, or silicon carbide. Silicon carbide is also manufactured for ceramics and sandpaper. Carborundum is a trade name for moissanite and a synonym for other types of silicon carbide.
Moissanite also has polymorphs with the same composition but different crystal and molecular structures. Polymorphs with molecular structures suitable for gemstone use are limited, though — another reason natural moissanite gemstones are rare.