This beautiful unheated Montana sapphire is a gorgeous steely blue color. This gem has very good clarity; there is one tiny inclusion only visible with a 10x loupe. There is a slight sheen from natural rutile silk that can be visible as the gem is tilted; under a microscope the pattern of the silk is quite beautiful.
This sapphire is faceted in modified version of the classic diamond round brilliant cut, optimized for sapphire and cut to “hearts and arrows” precision. It weighs 0.63 carats and measures 5.0 x 3.3 mm. It would make an amazing center stone for a unique and one-of-a-kind engagement ring.