Tanzanite Cluster 9ct White Gold Ring, the centrepiece comprising seven oval cut tanzanites of good colour and clarity, totalling 2cts, set in white gold, accented with tapering shoulders, in a finger-flattering style, set with natural white zircon in a V shape formation; both the single source tanzanite, only discovered in the late 1960's in the foothills of Mount Kilimanjaro, and natural zircon, one of the oldest known gemstones on the Planet, are Birthstones for December; size S