1. Solitaire Tanzanite Pendant Necklace Asolitaire tanzanite pendant necklace features a single tanzanite gemstone set in a pendant. This style of necklace is simple yet elegant, highlighting the beauty of the gemstone to the max. The tanzanite stone can be cut into different shapes, such as round, oval, or pear, and can be set in various metals, such as gold or silver. 2. Tanzanite Choker Necklace