Tradition dictated that the gems used in the crown and coronation jewelry were selected from those kept safely in the Imperial treasury, none of which were ever permitted to leave Iran. Therefore unable to bring the priceless jewels back to Paris, Pierre Arpels spent long days in the Central Bank’s basement vaults passionately selecting each stone that would adorn the imperial crown. He then set up a complete workshop in the National Treasury room to create, in 6 months and under the tightest levels of security, this historic special order, made from stunning white gold and the finest green velvet, covered with diamonds, pearls, emeralds, rubies, and spinels. The company presented the empress with a true piece of our national history; a crown made of emerald velvet set with 36 emeralds, 36 rubies, 105 pearls, 1,469 diamonds and 150 carat emerals at the center. Van Cleef and Arpels also made a large gold and platinum necklace for Queen to wear on the coronation day. It features a large carved emerald as the central pendant, plus additional emeralds, white and yellow diamonds, and pearls. The Queen also wore a pair of coordinating earrings by Van Cleef and Arpels.