We are over the moon about our level ring! From far away, it looks like tourmaline crystal. On closer inspection it is a level ring: so comfortable with overall great proportions. Available in ring sizes 6, 7, 8, 9, 10, 11, 12 Level unit on top is 9/16" x 1/4" (14mm x 6mm). Ring shank is 5/32" (4mm) wide. Don't forget to tell us what size you would like.