SIGNED MANFREDI YELLOW AND WHITE GOLD, AND DIAMOND SIX-STRAND FLEXIBLE LINK NECKLACE. Four strands of yellow gold slender cylindrical links with two strands of matching white gold links; clasp constructed as two U-shape panels each centering row of 15 matched brilliant-cut round diamonds. With original purchase certificate dated 1981. - L: 30 in.; Gross wt. 2 oz. 3 d.w.t. Estimate $1,500-2,500