THREE NATURAL JADEITE RING SURFACES. Jadeite only size 16.5 mm by 10.1 mm by 4.8 mm, 14.8 mm by 9 mm by 4.3 mm, 14.6 mm by 11.2 mm by 4.1 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.