An Art Nouveau 18 Karat Yellow Gold, Sapphire and Diamond Ring, in a stylized layered foliate motif, the sculpted gold setting containing one oval mixed cut sapphire measuring approximately 9.28 x 8.23 x 6.42 mm and 20 old European and old single cut diamonds weighing approximately 0.32 carat total, the underside intricately engraved in a foliate design, split shank.Stamp: (Maker's mark depicting a stylized Y within a circular border).Hand inscribed: No. 1458.Accompanied by an American Gemological Laboratories sapphire identification and origin certificate number CS 63625, dated October 17, 2014, stating Origin: Ceylon (Sri Lanka), Enhancement: No gemological evidence of heat, Clarity Enhancement: None. 6.60 dwts.