Joyce Jonas is an appraiser, copyright and patent researcher, and historian with her own business, Joyce Jonas & Associates, in New York City. She is also the president emeritus of the American Society of Jewelry Historians and is a columnist for InStore magazine.
Ms. Jonas has served as an adjunct professor of art for 15 years at the New York University School of Continuing and Professional Studies. She is also an instructor of Sotheby's American arts course and a lecturer for Sotheby's Institute. Ms. Jonas also organizes and lectures at the Jewelers of America Estate Jewelry Seminars.
Ms. Jonas is the director of the Annual Antique and Period Jewelry and Gemstone Conference, which celebrated its 25th anniversary in 2004. She is also a member of the jewelry vetting committees of the New York Winter Antiques Show and the Palm Beach Antiques Show.