This beautiful heated Montana sapphire is a deep rich green-blue color, showing flashes of deep green and blue on a dark body color. 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 gem is free from any significant inclusions, but does still have a very slight amount of undissolved silk that slightly softens the brilliance and give the gem a bit of a “glow.”
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 3.45 carats and measures 9.8 x 8.1 x 5.9 mm. Sapphires this large are very rare from Montana–it would make an amazing center stone for a unique and one-of-a-kind engagement ring!