In 1878 Tiffany acquired one of the world's largest and finest fancy yellow diamonds from the Kimberley diamond mines in South Africa. Under the guidance of Tiffany's eminent gemologist, Dr. George Frederick Kunz, the diamond was cut from 287.42 carats to 128.54 carats with 82 facets, which gave the stone its legendary fire and brilliance. Named the Tiffany Diamond, the stone became an exemplar of Tiffany craftsmanship.