#25c- Montana Yogo Sapphire Round Color Change .52 ct

Montana Yogo Sapphire Round .52 ct  4.5mm round x 2.75mm deep.

Inclusion as seen in photo.  Color changes purple and blue depending on light.

Natural in color, unheated, untreated stones from Yogo Gulch, Montana, USA

Comes with a Certificate of Authenticity