The world\'s supply of genuine tanzanite is running out fast. Perhaps there are only a few years of mining this gorgeous gemstone left. Why not invest in this charming tanzanite butterfly pendant and secure yourself a piece of Earth\'s history? Comprising of two marquise cut genuine tanzanites and two round brilliant cut tanzanite stones, this butterfly pendant makes a truly elegant gift. Four tanzanites, grade AA - bluish violet, total 0.6 ct. Marquise cut. Pendant hangs from gold double link rope chain with spring clasp, length options from 14\" to 24\". Available chain thickness 0.68 mm (pictured) and 1.15 mm.