3rd Degree Masonic Blue Lodge Ring 10KT or 14KT. Solid Back #319. On the edges of the rings you can have mounted either CZ's, Moissanite or genuine diamonds. You can also substitute the "G" in the center of the ring with the stone of your choice. The "G" in the center of the ring is blue enamel. As shown, this ring has a White Gold Top and the shank is Yellow Gold. This ring is approximately 5/8 inches wide x 3/4 inches. Plumb and trowel on the sides of the shank.