1.93-Carat Steely Blue to Lavender Color-Change Montana Sapphire


A beautiful unheated steely blue to lavender color-change sapphire from Montana, 1.93 carats.

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This beautiful unheated sapphire is a gorgeous steely blue color in daylight and most fluorescent light, but it’s also a rare color-change sapphire–under indoor incandescent lighting, the color shifts to uniform lavender violet hue.  The color change isn’t very strong, but it’s hard to photograph and it has to be seen in person to be appreciated.  The gem has excellent clarity, with only a tiny amount of natural rutile silk present and one or two tiny inclusions only visible with a 10x loupe.  The high clarity gives the gem excellent brilliance–this is really a remarkable natural sapphire!

This sapphire is faceted in the classic diamond round brilliant design, optimized for sapphire and cut to “hearts and arrows” precision.  It weighs 1.93 carats and measures 7.5 x 4.7 mm.  It would make an amazing center stone for a beautiful engagement ring!

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