This beautiful heated Montana sapphire is a gorgeous teal blue, one of the finest 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. This sapphire has outstanding clarity, appearing all but flawless under a 10x loupe. While the photo shows a slight blue-green bicolored effect, this is mostly not visible in person, as the colors tend be blended by the eye.
This sapphire is faceted in a modified version of the classic diamond round brilliant design that is optimized for sapphire and cut to “hearts and arrows” precision; the result is a glittering beauty of a gemstone. The gem weighs 1.31 carats and measures 6.5 x 4.2 mm; the perfect size for an engagement ring.