Each set with a pear-shaped diamond, weighing approximately 12.85 and 12.79 carats, to the cushion-shaped surmount, weighing approximately 1.53 and 1.28 carats, mounted in gold, 3.3 cm. 

Accompanied by four reports dated 13 July 2016 to 27 February 2017from the GIA Gemological Institute of America with the following details; and two Diamond Type Classification letters stating that the 12.85 and 12.79 carat diamonds have been determined to be Type IIa.

Report Weight Colour Clarity Cut
5171798518 12.85 D Internally Flawless Pear
1182066831 12.79 E Internally Flawless Pear
2175749065 1.53 E VS2 Cushion
2175716051 1.28 F VVS1 Cushion. 

The total certified weight of the diamonds is 28.45 carats.

Christie's. Hong Kong Magnificent Jewels & The Pink Promise, 28 November 2017, Hong Kong