A Platinum, Diamond and Graduated Cultured Pearl Necklace, containing 105 pearls measuring approximately 3.02-7.88 mm in diameter strung knotted with a platinum clasp containing three single cut diamonds.Stamp: PLAT.Accompanied by a Gemological Institute of America pearl identification certificate number 1162582871, dated September 19, 2014, stating Pearls: Bead cultured, Environment: Saltwater, Mollusk: Pinctada fucata species, Shape: Variously shaped, Bodycolor: White.