
Ranking: 38
Worth: £179m
Industry: Jewellery
John Coulter, 55, and his sister Ann Jones, 53, own and run WJH, a Stockport-based jewellery retailing group worth £150m. They also own Warren James Holdings, with £21.7m net assets in 2005-06.
Ranking: 50
Worth: £83m
Industry: Jewellery