This Cartier and Dinh Van "Double Faces" ring is a product of the iconic late-1960s collaboration with  avant-garde designer Jean Dinh Van- the first designer ever asked to collaborate with the celebrated house of Cartier. Crafted circa 1969, this is a classic example of  Dinh Van’s celebrated geometric vision through its distinct open square silhouette. 18k yellow gold with a satin finish.

 marks for both Cartier and Dinh Van, 18K and numbered 38102.

 Square dimensions are just over 20mm. 5.5g, Size 5 3/4.