18 karat gold and diamond "Anthalia" necklace by Cartier, designed as a tapered bib of openwork ladder rows of bars that look like columns, set throughout with 831 round diamonds weighing approximately 50.00 carats, gross weight 238.8 grams, length 15 1/2 inches, width 5/8 to 1 1/4 inches, signed Cartier, numbered 702234, with French assay marks. Circa 1994. cf. Franco Cologni and Eric Nussbaum. Platinum by Cartier: Triumps of the Jewelers' Art. Abrams, New York, p. 253, for a similar necklace set in platinum.