This beautiful unheated Montana sapphire is gorgeous mint green color–green tinted by a hint of blue. Like many Montana sapphires, it can shift color–in daylight it can appear more blue-green than green. This sapphire is unheated and untreated in any way. There is a tiny amount of natural rutile silk that is proof of its unheated status and a tiny inclusion visible in this macro image, but neither of these are visible without a loupe.
This gem is faceted in a custom brilliant trillion design (a “trilliant”), modified and optimized for Montana sapphire. The resulting gemstone is incredibly bright and scintillating in the hand. The gem weighs 1.03 carats and measures 6.6 x 3.9 mm; it would an ideal stone for a unique engagement ring.