19. EMERALD AND DIAMOND RING Decorated in the centre with a sugar loaf-cut emerald set in brilliant-cut diamonds, French hallmark for 18K (750°/00) gold, hallmark of the master, size 51, gross weight 15.49 g. Accompanied by an analysis report from GEM Paris attesting to the emerald's Russian origin (Ural) and the presence of a moderate oil treatment. Report no.20231977291-3 dated 22 September 2023. EMERALD AND DIAMOND RING Set to the centre with a sugarloaf emerald, within a surround of brilliant-cut diamonds, French assay mark for 18 carat gold, maker's mark, ring size L, gross weight 15.49 grams. Accompanied by a report from GEM Paris stating that the emerald is of Russian origin (Ural), with indication of moderate oil treatment. Report no.20231977291-3 dated 22 september 2023.