A Graduated Single Strand Jadeite Jade Bead Necklace, containing 63 translucent slightly mottled green beads measuring approximately 8.22-10.25 mm in diameter strung knotted from an 18 karat yellow gold clasp containing one round cabochon cut jadeite measuring approximately 8.00 mm in diameter.Stamp: 18K TSL.Accompanied by a Gemological Institute of America jade identification certificate number 2173341850, dated October 15, 2015, stating that seven randomly chosen beads measuring from 9.70 mm to 10.01 mm in diameter test as follows: Species: Jadeite Jade, Natural, Transparency: Translucent, Treatment: Natural Color, no indications of impregnation.