A very compelling, unheated, "fancy" sapphire hailing from Montana, weighting 1.58 cts., medium, vivid, bi-color, yellow & green, blending however, very well in an intense "teal", greenish-blue color, masterly executed, "antique" cushion, mixed cut, and measuring 6.38x5.64x4.63mm, eye flawless, VVS1 from the Rock Creek deposit, Philipsburg, Montana.