A cased set of French dress cufflinks and studs

A cased set of French dress cufflinks and studs, the cufflinks are each centred with a cabochon synthetic sapphire within a swirling surround millegrain set with rose-cut diamonds in platinum and gold. Numbered 27820, French control marks and makers mark J+D. 1.4cm diameter. With three matching and smaller studs stamped with different inventory numbers. And a similar cabochon synthetic sapphire and diamond set stick pin. And a smaller synthetic sapphire and diamond stud.