Lot Essay
This sumptuous vase of richly veined blue-john reflects the taste for precious hardstones among enlightened collectors in the 1780's such as the duc d'Aumont and Marie Antoinette. Blue-john, a rare fluorspar deposit from the Castleton area of Derbyshire, England, has been prized since Roman times. Blue-john was exported in the late 18th Century to France for use in luxurious objets d'art and its name is a corruption of their appellation 'bleu jaune.'