Ancient Coin Set In 14K Yellow Gold Pendant. Genuine ancient coin circa 300 A.D. This coin was minted posthumously under the rule of Emperor Constantine who was the first Christian Roman emperor. It was in honor of his father Constantine the First. Not a common coin and in excellent condition with a very good and well centered strike. The reverse also depicts a celebration of the life of his father. The coin is back mounted with 4-prongs in a bezel with the Greek Key design. The Greek Key pattern signifies long life and so is very appropriate for this coin. The coin measures approximately 14 mm across. Shipped with USPS First Class.