Montana Sapphire Bicolor and Color Change Blue/Yellow Oval Shape 0.60 Carat MTY00332

This is a small but unusual Montana sapphire. It is generally a light blue color under most lighting, but we noticed that it is a bicolor when we magnified it for the video. Also, this sapphire displays a distinct color change to yellow under traditional 40w incandescent light bulbs (see pictures). This stone is for someone looking for a small color change sapphire.
https://youtu.be/ATFI37vMQF0

GEMSTONE: Sapphire
ORIGIN: Montana
WEIGHT: 0.60 Carat
COLOR: Bicolor With Color Change
CUT: Oval
SIZE Approx. 6.00 x 4.53 x 2.94 mm
QUALITY: Eye Clean
TREATMENT: Heat