19th Century Pear-Shaped Diamond Earrings19th Century Old Mine Cut Diamond Earrings England, circa 1860. These crisp antique stones were once part of a larger piece of jewelry, and are now simple earrings with post fittings. Each stone is in its original silver cutaway settings on 18k gold. The four stones total over 6 carats and have wonderful proportions. On 18k gold earring posts with backs. The earrings measure . 75 inches in drop length.