This beautiful heated Montana sapphire is a gorgeous teal blue-green color, a classic Montana sapphire color and one of my favorites. 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 very good clarity with just a few tiny inclusions only visible with a 10x loupe. The high clarity makes it bright and scintillating in the hand.
This sapphire is faceted in my custom “Helena” brilliant oval design that has been optimized for sapphire. The gem weighs 0.79 carats and measures 5.7 x 4.7 x 3.6 mm. It would make a lovely center stone for a one-of-a-kind engagement ring.