This lovely heated Montana sapphire is a gorgeous rich blue, one of the finest shades of blue found in the Montana gems. This sapphire has been subject to traditional heat treatment in Montana to improve the color and clarity, but no other treatments have been applied. The treatment is permanent and stable. The sapphire has excellent clarity. It has one tiny inclusion that is only visible if you look carefully to find it.
This sapphire is faceted in my custom “Aurora” brilliant square cushion design that I’ve created and optimized for sapphire; the resulting gemstone is bright and scintillating in the hand. The gem weighs 4.58 carats and measures 8.9 x 6.3 mm. It would make an amazing center stone for a unique and one-of-a-kind engagement ring.