This gorgeous unheated Montana sapphire is a beautiful steely blue color, and shows a slight shift to pale lavender under incandescent light. It has a slight amount of silk but not enough to impact the brilliance in any way and its not visible without a 10x loupe. In the hand its a very bright and scintillating gemstone.
I faceted this sapphire in my modified round brilliant design that I’ve optimized for sapphire and the brilliance is excellent. The gem weighs 1.05 carats and measures 5.6 x 4.1 mm; the perfect size for an engagement ring.