90 - White gold ring set with an octagonal Ceylon sapphire weighing approximately 21.42 carats, flanked by navette-cut diamonds and round diamonds on the prongs

White gold ring set with an octagonal Ceylon sapphire weighing approximately 21.42 carats, flanked by navette-cut diamonds and round diamonds on the prongs Tdd: 55 Gross weight: 13.7 g Accompanied by: - SSEF laboratory certificate No. 155369 dated 06/11/2026 stating: Natural sapphire Color: blue of medium strong saturation Origin: Sri Lanka (Ceylon) No indications of heating - Preliminary examination by the GEM Paris laboratory No. 20261978785 indicating: Sapphire on ring - Origin: Sri Lanka (Ceylon) - Treatments: unheated (S1)