This beautiful heated Montana sapphire is a deep rich blue-green color, showing flashes of brighter blue on a rich 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. There’s a tiny gold-orange spot that is just visible at certain angles, giving this gem a unique “surprise” for those who carefully hunt for it. The gem has some tiny inclusions visible in the macro image, but they are not visible in the hand without a 10x loupe–its eye clean.
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 4.88 carats and measures 11 x 9.1 x 6.7 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!