3rd Degree Masonic Blue Lodge Ring 10KT or 14KT Gold, Open Back or Solid Back #712. Available in yellow or white gold. STONE SIZE APPROXIMATELY 10x10mm. The sides of the shank are plain on this ring. These are beautiful rings made by a high quality jewelry manufacturer. They are heavier than most rings made by our competitors. Expect to pay much more when purchasing this ring from a quality jewelry store!