Group of three cultured pearl necklaces with diamond clasps

The first strung with 57 cultured pearls graduating from approximately 6.0 to 10.4 mm., the second with 61 cultured pearls measuring approximately 5.9 to 10.5 mm., the third composed of 65 cultured pearls measuring approximately 6.3 to 10.9 mm., each completed by a simple platinum clasp set with an emerald-cut diamond weighing approximately 1.45 carats, lengths 18½ to 21½ inches.