GOLD DIAMOND NATURAL JADEITE NECKLACE. Bigger Jadeite only size 12 mm by 6.2 mm by 2 mm. Smaller one 9.1 mm by 5.2 mm by 1.5 mm. Guarantee Natural Jadeite. GIA certificate is available upon buyer's request and cost. If fail to acquire GIA certificate, Consignor guarantee to refund. From a Hong Kong jewelry dealer.