1.67ct Unheated Missouri River Sapphire, El Dorado Bar Mine, Montana
Custom design and cut by Daniel O’Neil
7.36 x 6.1 x 4.83 mm
A light-toned, steely blue with hints of green when viewed from the side. An exceptionally clean crystal, this one is a true lighthouse – the light return is phenomenal. It takes skill with a loupe to find the minute inclusions.