The Company of Master Jewellers (CMJ) has announced that Jason Allum of Allum & Sidaway has been appointed to its Board of Directors.

Jason was fully opted onto the Board of Directors in April 2025 after spending time shadowing the Board for the past year. He will be put forward to the membership for formal ratification at the Annual General Meeting (AGM) later this year.

Jason previously served on the CMJ’s Board of Directors for eight years from 2013 to 2021 and we are delighted to welcome him back. He is an experienced and very successful business owner, whose passion and knowledge will be invaluable to our Board.

Allum & Sidaway is a founding member of the CMJ; a family business that was founded in 1942 and now has six stores across the south and southwest of England.

Jason said: “I am honoured to be invited back onto the CMJ Board. I hope my experience and commitment, working alongside my fellow dedicated directors, will help to continue the growth of the company to benefit all of its members.”

The CMJ is run by a democratically elected board of independent retailers, each one a highly esteemed member of the jewellery industry with years of experience and passion. They ensure that our strategy and vision keep the interests of independent jewellery retail at its heart, so our members can be confident that the business is always focused on their interests and the growth of their individual businesses.

The Board also includes a Non-Executive Supplier Director, who represents the interests of our supplier membership.