ANTIQUE DIAMOND RING, TIFFANY & CO.
Old-cut diamonds, silver and gold, ring size 7 ¼, maker's mark for Tiffany & Co. referencing the World's Columbian Exposition of 1893
The World's Columbian Exposition of 1893 was held in Chicago, Illinois. Tiffany won 56 medals during this exhibition, the highest of any company that year.