Long Old Mine Cushion Cut in Smoky Moissanite 8.9ct Marked Letter:Long Old Mine Cushion Cut Fortunately for us these uses

Fortunately for us these uses require very exacting standards and sometimes crystals are rejected

Their color change is strong

Colorless ZnS is grown for use for optics

Note that the crystals are still not completely perfect

They recently closed their factory in Chicago and auctioned off the contents

Long Old Mine Cushion Cut in Smoky Moissanite 8.9ct Marked Letter:Long Old Mine Cushion Cut Fortunately for us these usesThis is a long old mine cushion which I cut in smoky moissanite, modeled after Taylor Swift's engagement ring stone. It weighs in at 8. 9ct and measures 16. 4x11. 5mm. Note that this stone has some sparkly growth needles running down the length (hence why it couldn't be used for computer chips). This is moissanite, also known as silicon carbide. It is an excellent gem, with incredible hardness (around 9. 25 9. 5) and greater brilliance and fire than a