Vintage 10 kt Ruby w/Diamond Masonic Ring Sz 10, Beautiful, Worth a Look, 6.8 Grams! Beautiful Vintage Masonic Ring made out of 10 kt Gold, with a Ruby W/Diamond Stone middle. The Masonic Symbol on the front is pierced through the stone to hold it in place, symbolic of the older rings. The 10k & SA are inscribed inside the ring. Very little wear, just stunning. Weighs 6.8 Grams. Please see all the close-up pictures and judge for yourself.