Gabrielle was Buying Director of Royal Warrantholder wine merchants Corney & Barrow in London for a number of years. In 1993, having succeeded in passing the notoriously difficult Master of Wine examinations she went freelance, working as a broadcaster and guide and judging in international wine competitions. At the same time she co-authored and -edited the Bordeaux Atlas & Encyclopaedia of Châteaux published simultaneously in five languages. In 1998 Gabrielle spent a year in Japan teaching Wine & Spirit Education Trust courses. Since 2001 she has been based in Bordeaux where she selects wine for the Japanese market, teaches, tastes and guides.