As bright and clean as this sapphire appears in the video, will is even better in person. An unusual gemstone, with a color shift from medium blue, to teal, and to gray, depending on the light source. Please note that this sapphire has not been heat treated. From 20 year old stock and recently faceted in Montana, this is one of the more unique gemstones in our stock. This stone is for someone looking for a large, unique, and bright Montana sapphire for an engagement ring.