No. 932X: Standard Brilliant Cut, 1.25 carats, VS, 6.5 x 4.0 mm, $281.25 Sold

Shown above is a fine Montana sapphire of medium dark, very slightly greenish-blue color. Many natural sapphire crystals contain tiny included crystals of the mineral rutile. The tiny inclusions cause the crystal to look cloudy. Long ago the sapphire miners in Ceylon and Asia learned that if they heated cloudy sapphire, both the clairty and color of the treated gemstones could be improved. Sapphire from Montana also contains rutile and the color and clarity of Montana sapphires can also be improved by heat treatment. The above stone has been heated. The faceting (proprotions, meetpoints, and polish) of this stone is good. An El Dorado Bar sapphire of this size, color, and clarity is quite rare. This stone would look beautiful in a pendant, pin, or ring.

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