Susan Thornton
Jewelry Advisory
New York
Susan began her jewelry career as a designer in London, where her work earned recognition in the top fashion magazines. Her fascination with gemstones led her to become a certified gemologist, shifting her focus from design to jewelry appraisal and valuation, in which she now has over 15 years of expertise. She has worked with some of the nation’s leading independent jewelers, gaining extensive experience in production and manufacturing, as well as estate jewelry authentication. Alongside her work in the jewelry trade, Susan drew upon her years in radio broadcasting to launch a podcast exploring the interconnectedness of gemstones to the broader world around us. She joined Gurr Johns in 2024.