This lovely unheated sapphire comes from Umba, Tanzania, and is a gorgeous steely blue. The gem is 100 percent natural and untreated in any way. The sapphire has excellent clarity, making it bright and scintillating in the hand. There may be tiny inclusions that are visible with a 10x loupe that can’t be seen with the naked eye.
This sapphire is faceted in a modified version of the classic diamond round brilliant design that is optimized for sapphire; the result is a glittering beauty of a gemstone. It weighs 0.85 carats and measures 5.5 x 3.7 mm, the perfect size for an engagement ring.