Most original is the combination of carved coral, of the old-fashioned type, with large uncut emeralds, diamonds and onyx. This daring color harmony is another Cartier invention, which is gradually growing in popularity. It, however, requires careful handling, the combination being rather dangerous.
— Baron de Meyer

Cartier. Pendeloque, brooch-pendant, 1922

Cartier. Earrings, 1924

Cartier. Penannular brooch, c. 1925

Cartier. Bracelet, c. 1922