Julio, handmade gold plated recycled 925 sterling silver ring with a natural Ruby gem. A stone that burns with the force of earth and fire. From kings to warriors, ruby has symbolized courage, passion, and power throughout history. Properties: stimulates vital energy, reinforces confidence, and amplifies leadership. Physical Characteristics: a red corundum with a Mohs hardness of 9, prized for its intense hue and fiery luminosity. Birthstones Collection.