Nafco Gems was established in Geneva, Switzerland in the early 1900's and has been a family run organization for four generations. Nafco has earned a respectable reputation for their use of colored natural gemstones in their collections of rings, pendants, earrings and pins. Nafco jewelry pieces are recognized worldwide for their vibrant eye-catching designs and are frequently seen on celebrities during their "red-carpet" appearances. Gray & Sons has an incredible selection of signed estate jewelry - including famous label jewelry from such names as Cartier, Bvlgari, Van Cleef & Arpels, Tiffany & Co., David Yurman, etc. Gray & Sons is not an authorized dealer of any name brand jewelry on our website. Authenticity is guaranteed or your money back!