To mark their one hundred seventy-fifth anniversary, Tiffany & Co. have debuted the Rubedo Collection. This iconic jeweler created Rubedo metal, which is an alloy of gold, silver, and copper, the pieces in this collection are lightweight and luminous. Available in this unique collection are an elongated cuff, a Tiffany 1837 pendant charm, a contoured ring, and a necklace made of interlocking circles.