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.