Gem-A North West Branch

Peter Wilson Fine Art Auctioneers are proud to host the Gem-A North West regional group. Relaunched in 2020 with the aim of creating a network for jewellery and gemstone enthusiasts, members, students and non-members of the Gem-A are all welcome to get involved with our meetings.


The Gem-A or the Gemmological Association of Great Britain is the world's oldest provider of gem education, having taught the science of gemmology for over 110 years. With a base in London, the Gem-A features ‘regional’ groups in the Midlands, North East and the North West. The current committee is made up of auction professionals, insurance valuers, jewellery makers, retailers and gem enthusiasts!

We are aiming to host a mixture of private jewellery viewings, talks, demonstrations, get-togethers and social events for the gemmology enthusiasts of the North West! For the remainder of 2020, we are set to host a series of Zoom talks with industry-leading professionals, with the view to conducting in-house meetings here at Peter Wilson's saleroom in 2021 (if not sooner, COVID dependant).

We are constantly adding to our line-up of events, so join our mailing list to keep up to date with our latest news! Join our mailing list or find out more about the North West Branch by contacting Liz Bailey



Upcoming Events


Thursday 29th October: 6 pm – Rui Galopim FGA DGA - Webinar - Gemstones in Portuguese 18th Century Jewellery - Please RSVP to


Above: Sacred image aura set with rock crystal, amethysts, yellow topaz and colourless topaz, with evidence of the use of coloured foils in both topaz and quartz. Portugal, late 18th century. 

Rui Galopim de Carvalho FGA DGA is a Gem Education Consultant, author and international lecturer on gemmology and the history of gem materials, especially in Portuguese jewellery of cultural heritage, being the founder of the Home Gemmology webinars launched during the pandemic lockdown. Rui is editor of the educational account Portugal Gemas on Instagram, sharing gemological content actively on social media (Facebook, LinkedIn, YouTube, Twitter). He is associate editor of The Journal of Gemmology, Vice-President of Sector A and of the Coral Commission of CIBJO - The World Jewellery Confederation, member of the Communications Committee of ICA - International Colored Gemstone Association, Advisory Counsellor of the Portuguese Jewellery and Watchmaking Association and consultant of National collections, namely the Museu Nacional de Arte Antiga and Royal Treasury at the Palácio Nacional de Ajuda.



Tuesday 7th September – Maggie Campbell Pedersen FGA ABIPP - Talk and Practical Session - Organic Materials - Please RSVP to

Gem and Ornamental Materials of Organic Origin - Maggie Campbell Pedersen

Join us for an evening’s talk and practical session on organic materials with Gem-A president and expert Maggie Campbell Pedersen. Expect a fascinating talk on the subject of organic materials, as well as a chance to enhance your practical skills with a world-leading expert on this subject!


Maggie Campbell Pedersen

Maggie is the President of the Gem-A, and an Associate of the British Institute of Professional Photography. She is an accredited lecturer for The Arts Society (formerly NADFAS). 

​Her work includes identifications, teaching, writing, and constant research into all aspects of the subject of organics. She has given lectures and seminars world-wide, Master Classes in museums, and has appeared on television.  She has also worked in various places as a research assistant in animal conservation, studying elephants, turtles, and other animals. Maggie Campbell Pedersen is the author of Gem and Ornamental Materials of Organic Origin (2004, reprinted 2010), and 'Ivory ' (2015).