This Montana sapphire is a classic example of when heating is the best option. The original gem was very silky and as a result took on a dull grayish-silver tone and had a dulled brilliance–it was unsuitable for faceting. The heating dissolved the rutile silk so the clarity is now excellent and developed the wonderful rich blue-green color. There is one tiny feather in the pavilion, but its not visible face up and has no impact on durability. The color shifts slightly with the light, appearing a brighter blue in daylight and deeper blue-green in fluorescent light.
I faceted this is a gem custom mixed cut that I designed for sapphire. I call the design “Trybrid” as its a hybrid of three different faceting styles: The pavilion is a mix of Portuguese and step cuts and the crown is the same as used on a classic brilliant style gem. The result is a gorgeous sparkling gem weighing 4.53 carats and measuring 8.2 x 7.4 mm. This would make the perfect gem for a one-of-a-kind engagement ring.