Louis Heissler Ring Chevalière Art Deco Saphir Non Chauffé and diamonds on Platinum

Ring, signet ring, in paltinium (hallmark: dog), set in its center with an oval sapphire, weighing approx. 0.90Ct, in a shoulder of diamonds old-cut rounds, whose total weight is estimated at approx. 0.35Ct (estimated color I, estimated purity SI). Sapphire accompanied by its Carat Gem Lab certificate, specifying natural Siam sapphire without thermal modifications. French work, circa 1930, Art Deco, by jeweler Louis Heissler (poinçon de maître).Numbering inside the ring. Gross weight: 11.68 gSize: 47 (diameter 15.00/ US 4.00)Design height: 0.70cm Condition: very slight micro-scratches on the paltinium parts and stones, natural inclusions in the stones, see photos. The Louis Heissler workshop worked for the great houses of Place Vendôme, and more particularly for Mauboussin from the 1930s to the 1960s. All our antique rings.