Montana Sapphire Gold & Silver Ring. I cut this beautiful Blue Green Montana sapphire in a design called ‘Mini Mint’. The design has extra facets on the table to accentuate the brilliance of the stone. There are over 70 total facets in the design which are cut at least 4 times each! The sapphire is ¾ of a carat and set in 18K gold with a 14K textured gold band over silver. Ring is size 6 ¾ .