Sapphire – Natural, Faceted, Green, 0.46 ct

This sapphire is untreated and shows a slight to moderate color change toward pink in some indoor lighting, which is very rare for a Montana sapphire. It only seems to do it once in awhile though. Color: Light Green, Slight Color Change, Treatment: None, Cut: Fancy Round Brilliant, Weight: 0.46, Dimensions: 4.87. (Information supplied by photo contributor.) © Daniel Stair, CustomGemstones.com

Credit: Daniel Stair, CustomGemstones.com 2015