GEM EXPERT

With a background in gemmology and art history, Helen Molesworth enjoyed a fascinating career as a jewellery specialist in international auctions. Later, she set up her own jewellery advisory business, sourcing for clients and researching private collections, and became a professor of the history of jewellery and gemmology in Geneva. She is currently the managing director of the Gübelin Academy in Hong Kong. This month, she examines the best way to purchase sapphires (p.216).