Antique Emerald and Diamond Ring in Platinum and 18KThis stunning emerald and diamond Edwardian ring is a wonderful example of some of the earliest pave diamond work completed in the early 1900s. The two tone platinum and yellow gold ring features an extraordinary quality cut cornered square emerald. The superior quality of the emerald is apparent with its rich green color and lack of inclusions. The emerald is secured by four (4) yellow gold curved bar style prongs. The twenty eight (28) old Mine cut