*Ring set with an unheated blue-violet Burmese "color change" sapphire (15.20 ct) surrounded by brilliant-cut and baguette-cut diamonds (total approx. 3 ct). Surrounded by brilliant-cut and baguette-cut diamonds (total approx. 3 ct), platinum 900, finger 55-15, 20 g, accompanied by two GFCO and GCI certificates dated October 2023. For lots marked with *, VAT of 8.1% is payable on the full auction price.