1.29-Carat Reddish-Purple Umba Sapphire

1.29-Carat Reddish-Purple Umba Sapphire


A lovely reddish-purple sapphire from Umba, Tanzania, 1.29 carats.

In stock


This lovely deep reddish-purple sapphire is from the Umba River Valley in Tanzania.  Like most of the sapphire from the Umba Valley, it shows interesting shifts of color, showing a richer red-magenta purple under incandescent light and a bluish-red purple in daylight.  It is completely natural with no treatments whatsoever.  There is a small feather in one corner and a tiny bit of a “natural” left on one edge, although both are very difficult to see and the feather requires a loupe.  There are also tiny internal tube-like inclusions typical for Umba sapphire, but these are also only visible with a loupe.  The overall gem is eye clean and is lively and richly-colored in the hand.  I faceted it in my “Aurora” custom square cushion design; it weighs 1.29 carats and measures 5.45 x 5.45 x 4.35 mm.


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