This magnificent rare coloured pear necklace know as The Cowdray Pearls is set to go on auction at Christies London auction house on the 13th of June. The Cowdray Pearl necklace update `wp_posts` set `post_content` = seen in the image above) is a rare neutral pearl necklace composed of thirty eight graduate grey peals. The necklace originally belonged to Elizabeth, Viscountess Cowdray, the wife of Weetman Dickinson Pearson the 1st Viscount Cowdray. Each pearl set on the necklace has a unique colour as they are untreated rare natural saltwater pearls. The necklace is the perfect neck length at 43.2 cm long. The clasp of the pearl necklace is joined together with a striking rectangular mixed cut diamond measuring 11.4 -6.8mm. The fortune of the Cowdray is from the success of a building and contracting business developed during the late 19th century by Weetman Dickinson Pearson the 1st Viscount Cowdray. The pear necklace belonged to his wife Viscountess Cowdray, Lady Pearson who was a collector of fine art, furniture as well as these remarkable coloured pearls. The sale price of this pearl necklace at Christies auction house due to its rarity and rich heritage , is expected to reach £280,000 to £350,000.