AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND 'TOI ET MOI' DRESS RING Obliquely-set with an old cushion-shaped diamond weighing approximately 2.60cts and a similarly-cut sapphire weighing 2.78cts, between single-cut diamond scrolling shoulders, mounted in platinum, French import mark, ring size K¾ Accompanied by a gemmological report from C. Dunaigre laboratory in Switzerland, stating that the natural sapphire weighing 2.78cts, is of Burmese origin, with no indications of heating. Report number CDC 2404287, dated April 19th 2024.