Diamond solitaire pendant necklace, the collet-set marquise brilliant-cut diamond weighing 1.60 carats, is suspended by a fine trace link chain, mounted in 18ct gold, inner circumference 470 mm, adjustable to 420 mm., accompanied by a GIA report numbered 5221575447, dated 5 August 2022, stating that the 1.60 carat diamond is natural, L colour, I1 clarity.