with a central quatrefoil motif set with a principal cushion sapphire between triangular shaped sapphires, within a diamond line frame, the diamond lines crossing over and extending to the articulated strap of rectangular cut sapphires in diamond line edges, engraved lozenge pattern to the gallery sides, French control marks, maker's mark, serial number 45991 Length 18cm / 7�'' Weight: 36.5g
Large early 20th century diamond set articulated openwork oval brooch-pendant, c.1905, possibly French, featuring a knifebar lattice with central yellow diamond, of approximately 0.65ct, in white diamond flowerhead cluster,
18th century cushion cut diamond cluster panel, c.1780, with a scalloped edge, currently as feature panel to a late 20th century single row cultured pearl necklace,