In the early 20th century Cartier London was under the direction of the youngest Cartier brother Jacques who served as the gemstone expert for all three branches; London; Paris and New York. He traveled extensively to source the finest stones for their workshops. The Cartier London aesthetic was prized for its forward-looking; modern designs. This ring expresses the streamlined style of the late Deco era with a rectangular scissor-cut aquamarine in a platinum four-claw setting. The ring is accompanied by the original pencil and watercolor renderings on waxed paper; featuring an impressed Cartier stamp at the bottom right. The illustration shows four numbered mounting options including the one chosen. Signed Cartier London; numbered W 11518 With original case and original renderings.