Natural Sapphire — 2.91 ct, United States (Montana), Round Brilliant White Prasiolite is a green quartz

Prasiolite is a green quartz variety typically created through controlled heat treatment of amethyst

Garnet (usually untreated)

The crystals formed freely within a cavity

Its eye-clean clarity and round brilliant cut ensure maximum brilliance

the center stone is beautifully set in 14K white gold

Natural Sapphire — 2.91 ct, United States (Montana), Round Brilliant White Prasiolite is a green quartzNote: From the El Dorado Bar near Helena, Montana, this is a large and rare example of a beautiful American Sapphire! Montana Sapphires are moody and shift around in color depending on the light source. Origin: Sapphire El Dorado Bar, Montana Weight: 2. 91 Carats Size: 8. 8 x 5. 2 millimeters Clarity: Slight natural rutile needle inclusions visible under close inspection. Cut: Round Brilliant Color: Green Treatment: None, guaranteed 100% natural and