A pair of antique pearl and diamond drop earrings

A pair of antique pearl and diamond drop earrings, with enamel dot decoration and each set with a square shaped diamond in gold. With later peg attachments. With various marks and inventory numbers. 5cm high. Fitted case by Wartski. With certificate number 05107 dated 17th January 2012 from the Gem and Pearl Laboratory stating that the twelve drilled, irregular oval shaped pearls are natural, saltwater. Being sold on behalf of the Trustees of the 7th Duke of Newcastle (deceased)