This "swan lake" necklace is long-term cooperation with the royal family of Garrards jeweler for Diana design, this necklace from the top of the south China sea pearls and diamonds, but unfortunately in complete it before, Diana was in the car accident. Princess Diana died in a few years, this necklace and earrings finally completed the form a complete set, and in September 2010, appraisal 500000 pounds. Auction