Tanzanite stone 6.56 ct
Tanzanite is considered to be one of the rarest gems on the planet. There is only one known deposit of this type of gem-quality zoisite mineral. According to forecasts, it will be exhausted in the coming decades. The presented tanzanite stone is of high purity (eye clean) and deep blue color with a tinge of violet. Cut form – cushion. Sample weight – 6.56 carats.