37. DIAMOND NECKLACE Composed of a chain adorned with three rows of brilliant-cut diamonds, French hallmark for 18K (750°/00) gold, length 40.50 cm, gross weight 55.17 g. DIAMOND NECKLACE Designed as three-rows of supple mesh chain set with graduating brilliant-cut diamonds, French import mark for 18 carat gold, length 40.50 cm, gross weight 55.17 grams.