In addition to jean Schlumberger, tiffany welcomed other visionary designers, including Elsa Peretti, who transformed 1970s jewelry design with an elegant simplicity based on natural forms; and paloma picssso who followed in 1980 with jewelry of bold originality. Throughout the company's history, tiffany designers have drawn on the natural world for inspiration. Nature is also the source of the precious metals and gemstones necessary for creating their designs. Tiffany was an early proponent of obtaining these materials in ways that are socially and environmentally responsible. As tiffany & Co. Chairman and CEO michael J.Kowalski, has said, "Our position as a leader in the luxury jewelry market gives us the opportunity and the responsibility to conduct our business in a manner that is consistent with our core beliefs-protection of the environment, respect for human rights and support for the communities in which we do business