Tanzanite

Tiffany & Co named this blue-violet variety of zoisite in honour of Tanzania, where it was first unearthed in 1967. Because the crystals show different colours depending on the viewing direction, cutters can fashion gems with a range of colour from violet blue to bluish violet depending on how much weight they want to retain from the rough.

Tanzanite

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Shapes

Round, Oval, Pear, Princess, Cushion, Marqui, Emerald, Square, Ascher, Cabochon