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Dark Blue Montana Sapphire

5 X 3.5 mm faceted round dark blue Montana sapphire weighing .80 carats. I purchased several carats in May of 2011 from a certified gemologist. The seller was hired as a liquidator for a failed sapphire mining company hoping to turn their inventory into some small return to the original investors. The liquidator depended on the records of the company for the provenance.

The sapphire is from the Lower Cottonwood Mine near Deer Lodge, Montana. It was heat treated in an unknown location and faceted with a brilliant cut with the requisite number of facet in Sri Lanka. The gem cutlet comes to a point.

I am selling this sapphire for $675. per carat = $540.00 USD. In comparison, an inquiry with The Natural Sapphire Company will show a similar dark blue sapphire at $1,350. per carat.

I have been buying and selling faceted gemstones for 17+ years. Inquires may be sent to