This is a custom "Skeleton Jack" cut black moissanite weighing in at 21ct and measuring 15.7x15.7mm. I cut this stone myself as part of my spooky series of Halloween gems, 2024.
This is moissanite aka silicon carbide. Though moissanite is often thought of as a diamond stand-in this crystal was actually grown for use in computer chips--fortunately for us it didn't quite meet spec and we were able to get our hands on it instead. Silicon carbide is much like diamond with great durability and even greater luster, meaning that a black moissanite is even brighter than a black diamond. If you're looking for the ultimate in black gems this is it!
