It was discovered in Tanzania in the 1960s, hence its name. Tanzanite is a variety of the mineral zoisite and is typically heat-treated to enhance its color.
Total weight: 4,10 cts
Calibrated batch of 5 tanzanites
Individual sizes and weights:
a) 6,94 x 4,92 x 2,77 mm 0,78 cts
b) 6,91 x 4,94 x 2,96 mm 0,87 cts
c) 6,92 x 4,87 x 8,62 mm 0,84 cts
d) 6,95 x 4,87 x 2,62 mm 0,78 cts
e) 6,86 x 4,89 x 3,02 mm 0,85 cts
