An opal ring, an opal pendant and and an emerald and diamond ring

An opal ring, an opal pendant and and an emerald and diamond ring
The oval cabochon black opal in a four claw mount, finger size P; an oval black opal pendant in claw-set mount to a neckchain; and a square-cut emerald and old brilliant-cut diamond three stone ring to chased shoulders, finger size M (3)