Very Large Jadeite Cabochon Man’s Ring in 18K yellow gold size 9 ? (sizeable) in a simple design. The bright apple green Jadeite cabochon is measured at 23.05 x 17.55 x 6.56mm and weighted at 20.15ct. Accompanied by a certificate from Hong Kong Jade & Stone Lab indicating natural type A jadeite jade with no resin is detected.