A mixed lot comprising a yellow metal (tests 18 carat gold) three stone diamond ring

A mixed lot comprising a yellow metal (tests 18 carat gold) three stone diamond ring (8.4gms, size Q) , a yellow metal (tests 9 carat gold) three stone diamond ring (7.1 gms, size V) and a yellow metal (tests 14 /15 carat gold) sapphire and diamond r