See her Appraiser profile here: Niki Tiliakos Watch her appraisal of a Chinese Jadeite & Diamond Ring, ca. 1920
"Niki Tiliakos has been the Senior Expert at Lark Mason Associates and iGavel Auctions in New York since 2006. She has also worked at Christie's in the Chinese Works of Art Department and Sothebys Arcade department as a consulting cataloger, working with American and European furniture, decorative art, and Asian art. Niki holds a degree from Barnard College and received her post-graduate diploma in Asian Art from Royal Holloway College, University of London, in partnership with the British Museum."