Smoky Moissanite Facet Rough

These are lab created moissanite facet rough with a light smoky golden-grey color similar to smoky quartz--the color looks a bit darker in the rough because sawn faces are more like mirrors than windows thanks to moissanite's ultra-high luster.  Some of these have a dark green edge, but that is very thin and grinds away. These cut very bright, dispersive gems.

Moissanite, aka silicon carbide, is often thought of as a diamond stand-in because of its combination of extremely high hardness and surface luster, great color range and overall brilliant sparkle.  However it is also an extremely useful crystal, and these stones were grown for use in computer chips where they act as a durable, heat-resistant replacement for pure silicon.  Fortunately for us they did not quite meet spec and I was able to get them instead and trim them for gem usage.

Note that this is the newer '4H' polytype of moissanite. The crystal structure has been improved over the older versions, which means you don't have the same worries about a yellow discoloration during polishing.