A Graduated Single Strand Cultured Pearl Necklace with Natural Pearl Clasp, consisting of 204 pearls measuring approximately 2.90-8.65 mm in diameter strung knotted with a white gold clasp containing one natural pearl measuring approximately 4.93 mm in diameter and two old european cut diamonds weighing approximately 0.23 carat total, together with a cultured pearls necklace containing 107 pearls measuring approximately 6.49-6.77 mm in diameter strung knotted with a clasp.Stamp: 585 (Vienna, Austria assay mark).Accompanied by a Gemological Institute of America pearl identification certificate number 1176455976, dated February 4, 2016, stating 204 Pearls: Bead Cultured, 1 Natural (on clasp), Environment: Saltwater, Species Pinctada fucata (Akoya), Shape: variously shaped, Bodycolor: Cream and white.