This beautiful heated Montana sapphire is a lovely light blue-green color, with just a hint of yellow-green visible at times. 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. There is one tiny inclusion but its not visible without a 10x loupe. There is also a tiny bit of undissolved rutile silk still present, but its much less visible in the hand than it is in the photo; in the hand it’s a bright and scintillating gemstone.
This sapphire is faceted in my custom “Helena” oval brilliant design that has been optimized for sapphire; the result is a glittering beauty of a gemstone. The gem weighs 1.64 carats and measures 7.6 x 6.4 x 4.6 mm. It would make an amazing center stone for a unique and one-of-a-kind engagement ring!