Tanzanite and Diamond Dress ring perfect colour spectacular ring

Modern 18ct Whitle Gold Ladies Tanzanite and Diamond ring with a spectacular rectangular step cut deep Bluish Purple Tanzanite measuring 11.18 x 7.24 x 4.31mm, set at the center with 4 claws. 

There are 20 round Brilliant Cut Diamonds bead set as the surrounding cluster, with an additional 5 Brilliant Cut Diamonds bead set in each shoulder to the parallel low half round shank back.

This ring is a show stopper.  Nothing more to say except the specs. 

Tanzanite: 1 = 2.82cts

Diamonds: 30=0.45 G-H, VS & SI

All stones graded and weight estimated in setting