.91ct. Natural Tunduru Sapphire. This stone was cut from direct mine rough from the Tunduru region in Tanzania, Africa. Tunduru produces the world's richest varieties of colors and also some of the rarest and most expensive of the fancy sapphires. Rarer still, this stone is unheated and free of any treatments, as the vast majority of all sold sapphires have been treated in some way. Color is a strong, dark indigo blue with a near blackish face up in most lighting, transparent, eye clean, with nice to very nice face up and eye appeal. Custom pear cut approx. 6.98 x 5.05 x 3.61mm. Valuable dark colored ring stone.

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