131. SAPPHIRE AND DIAMOND NECKLACE Forming a supple setting in yellow gold set with square brilliant-cut diamonds, accented with three yellow sapphires, three pink sapphires and two oval-shaped blue sapphires, holding a pear-shaped blue sapphire in the centre, French import hallmarks for 18K gold (750 ‰), Italian master hallmark, length 41.50 cm, gross weight 65.50 g. Accompanied by three Bellerophon assay reports dated 1 August 2025 attesting to: - the Sri Lankan (Ceylon) origin and the absence of treatment for the pink sapphire weighing 1.87 carat. Report no.A24575 - the Sri Lankan (Ceylon) origin and the absence of treatment for the yellow sapphire weighing 5.22 carats. Report no.A24576 - the Malagasy origin and the absence of treatment for the pear-shaped blue sapphire weighing 4.21 carats. Report no.A24577