G.Collins & Sons Tanzanite Pendant Necklace

The necklace features an inverted pear-shaped 6.3 carat tanzanite pendant, surrounded by .87 carat of diamonds, set in platinum.

Worn by the Duchess of Cambridge on:

• 13 March 2015

• 22 April 2016

• 9 March 2017

• 23 January 2018

• 27 February 2018