The Heritage Yellow Gold Diamond & Red Guilloché Enamel Year Of The Pig Surprise Locket features red guilloché enamel and round white diamonds, set in 18K yellow gold. The 22mm locket opens to reveal an 18 karat rose gold pig with diamond-set eyes, in honour of Chinese Year of the Pig. Pigs have a beautiful personality and are blessed with good fortune in life. Years: 1923, 1935, 1947, 1959, 1971, 1983, 1995, 2007, 2019.