One of the biggest importers and wholesalers of loose tanzanite stones and tanzanite jewelry, Top Tanzanite offers a large collection of cushion tanzanite in AAAA and D grades, with saturated good color and cutting. Cushion Tanzanite is cut into a square shape and is exceptional on all 4 C’s- color, Clarity, Cut and Carat. Preferred for its size and cut, the cushion tanzanite is very popular for its bright appearance.