Cartier Coussin de Cartier Small 18ct White Gold Diamond Set Watch WJCS0002. 18ct white gold 27.1mm x 27.7mm cushion-shaped case & bezel fully set with 166 brilliant cut diamond (~3.04ct) all on a blue calfskin strap. This ladies watch Features a sunray silver dial with black numerals and blued hands. Water resistant up to 30m and sapphire crystal glass. Quartz movement.