The Diamond and Ruby Necklace of Wallis Simpson (who became The Duchess of Windsor). This necklace is a true masterpiece of the art of jewelery-making. It was designed by Rene-Sim Lacaze and executed by Van Cleef & Arpels in 1938. The clasp is engraved with a loving inscription from the Duke: “My Wallis from her David, 19.VI.1936”. The platinum-set necklace was a special order commissioned by the Duke of Windsor (former King of England) as a 40th birthday present for the Duchess.