Platinum, Natural Pearl, and Diamond Necklacefeaturing 79 graduated natural pearls measuring approx. 3.90-7.25 mm.; completed by a bicolor gold clasp centering a marquise-cut diamond weighing approx. 0.50 ct. framed by bezel-set old European-cut diamonds; 10.33 dwts.; lg. 17 5/8 in.Other Notes: Accompanied by GIA report no. 5221369907 dated March 24, 2022 stating that the 79 drilled pearls are natural, saltwater, pinctada species, with no indications of treatment.