A set of four French Art Deco platinum, sapphire and diamond buttons, A set of four French Art Deco platinum, sapphire and diamond buttons, with later French white gold cufflink fittings. Each button/cufflink head with a square cut sapphire, rub set to the centre, with a border of four trapezoid cut diamonds forming a frame. A bevelled outer edge to loop wires, with Continental cufflink fittings. Buttons with French poinçon for platinum, fittings French poinçon for white gold. Maker's mark unidentified. 750 standard. A Cartier cufflink case, unassociated. Head 11.55mm x 11.55mm, 16.02g Condition Report: Light surface marks commensurate with its age. Diamonds and gemstones bright and lively. Case lid marked. Interior - grubby, slightly worn.