A FINE ART DECO SAPPHIRE AND DIAMOND RING, CIRCA 1920 The elongated octagonal-shape sapphire weighing approximately 4.30cts, between baguette-cut diamond shoulders, ring size J Accompanied by a report from the National Institute of Gemmology in Italy, stating that the sapphire weighing approximately 4.30cts is of Burmese (Myanmar) origin, with no indications of heating. Report number 27365, dated May 3rd 2019