(IDEX Online) - Twin nieces of the late Princess Diana have been appointed as brand ambassadors to Boodles, the luxury British jeweler.Lady Eliza and Lady Amelia Spencer, aged 31, are daughters of Princess Diana's younger brother, Charles Spencer, and his first wife, Victoria Lockwood.The royal pair, brought up in South Africa and now living in London, will represent Boodles, a privately-held jewelry company founded in 1798.The (non-identical) twins both work for the high-profile London-based model agency Storm management.Amelia is also passionate about wedding planning, and Eliza enjoys interior design. Princess Diana, first wife of King Charles III, died aged 36 in a car crash in Paris in 1997.Pic courtesy Boodles.