This beautiful pendant is fascinating for both its historical significance as well as its stunning design. The guilloche enamel is a stunning shade of cobalt blue on yellow gold and silver. Mounted in it are rose cut diamonds which form the letters ?ER? and a depiction of the crown of England. This is a symbol for Edward Rex, kind of England. This necklace was originally made as a gift from him. It is dated circa 1901-1910. The pendant measures 1.25 inches long and hangs from a 14 inch chain made of 14 karat white gold.