Tanzanite Ring, Geometric Heart Shaped, 14Kt White Gold 6.50 MM-1 CaratDeep colored, lots of facets and life Tanzanite gemstone, 6.50 mm with a total weight of estimated 1.00 carat. Deep rich color blue with brilliant faceting Ring is a size 4. Width of ring setting top is 9.00 mm. Weight of gold is 7.45 grams.