This beautiful heated Montana sapphire is a lovely sky blue, one of the most desirable shades of blue found in the Montana gems. The color was developed by heating the gem in Montana, but no other treatments were made to the gem. The treatment is permanent and stable and not only develops the color, but also improves the clarity. The sapphire has good clarity, making it bright and scintillating in the hand. There are just a few tiny inclusions, just barely visible without a 10x loupe.
This sapphire is faceted in my custom “Helena” brilliant oval design that has been optimized for sapphire. The gem weighs 0.66 carats and measures 5.5 x 4.5 x 3.4 mm. It would make a gorgeous center stone for a one-of-a-kind engagement ring.