Impressive sapphire and diamond ring. Photo Sotheby's

The cushion-shaped mixed-cut sapphire weighing 33.56 carats, set between pear-shaped diamonds weighing respectively 1.73 and 1.96 carats, size 53. Lot 694. Estimation 325,000-415,000 CHF

Accompanied by AGL report no. CS 47515, stating that the sapphire is of Burmese origin, with no gemmological evidence of heat.
Together with GIA report no. 6127905567, stating that the 1.73 carat diamond is D Colour, Internally Flawless, and GIA report no. 2121905236, stating that the 1.96 carat diamond is F Colour, VVS2 Clarity.