Description Late 20th century The necklace set with 140 modern brilliant-cut diamonds, weighing approximately 9 cts in total, suspending a modern brilliant-cut diamond weighing approximately 1.40 ct, colour ca. F-G, clarity ca. VS1. With maker’s mark Bonebakker Amsterdam. L. 42 cm / 16.5 in (approx.) Gross weight approx. 19.5 g Graded and measured in mount