Susanne Steinem Patch (February 19, 1925 – November 2, 2007) was an American gem expert and staff lawyer at the Federal Trade Commission.
[2] After their parents' divorce and their mother's health issues, Susanne was an important support for her younger sister, Gloria Steinem.
She learned the industry working as buyer in New York and Washington D.C. She taught gemology classes[5] and hosted a local television show on the subject.
Patch wrote a book, Blue Mystery: The Story of the Hope Diamond (1976),[6][7] and was a technical consultant on the subject for various documentaries and exhibits.
[2][8] After becoming a lawyer, Patch was a staff attorney at the Federal Trade Commission and was assigned to the Bureau of Consumer Protection from 1980 to 1994, where she oversaw regulations on jewelry, watches, and metallic watchbands.