Gold, Platinum and Diamond Collar Necklace

Of openwork gold lattice forms, gradually widens toward the front, set with round brilliant cut diamonds throughout. Diamonds weighing a total of approximately 17.50 caratsSigned Tiffany & Co.Italian registry marks18 karat yellow gold and platinumCirca 1980sTotal weight 156.30 gramsLength 17¼ inches, width ⅞ inch to ¾ inchAccompanied by one Sotheby's folio