A diamond pendant necklace, circa 1900 The finely pierced navette-shaped plaque of floral design, millegrain-set throughout with old brilliant and single-cut diamonds, to a similarly-cut diamond surmount and a figaro-link chain, diamonds approx. 1.05ct total
A DIAMOND NECKLACE, BY TIFFANY & CO. Designed as a series of cannetille-work links with circular-cut diamond detail, early 20th century, 43.0 cm long, with French import mark for platinum Signed Tiffany & Co.
A DIAMOND AND YELLOW DIAMOND NECKLACE The front section designed as three pavé-set diamond flowerheads each with a modified cut-cornered square-cut yellow diamond centre, with circular-cut diamond flowerhead spacers, to the circular-cut diamond and 18k white gold floral and foliate backchain, 43.0 cm.
A SAPPHIRE AND DIAMOND NECKLACE, BY CARTIER Designed as four rows of graduated brilliant-cut diamonds to the central heart-shaped sapphire and pavé-set diamond clasps, 41.0 cm long, with French assay mark for gold, in red leather Cartier case Signed Cartier, no. 610023
A magnificent Victorian emerald and diamond necklace, previously owned by the Habsburg imperial family of Austria, circa 1850, comprising four flowers, each set with square-cut emerald to the centre of a cluster surround of old brilliant-cut and rose-cut diamond-set leaves, the diamonds estimated to weigh a total of 40 carats, all set in silver to a gold mount (maybe convertible??)