Geraint was born and raised in Llanfair Pwllgwyngyll, Anglesey. He graduated in 2005 from Liverpool University with a BDS with honours degree with a Distinction in Restorative Dentistry. He has continued to build his experience and skills working for 5 years as an associate, and completing Vocational Training and an Educational Clinical Attachment at the Oral Surgery Department at a practice in Bangor, Gwynedd. In 2010, he successfully completed the year-long Postgraduate Certificate in Restorative Dental Practice at the world-renowned Eastman Dental Institute, University College London. He opened Marquess Dental in January 2011, just a few yards from his old primary school. He is a Full-Member of the British Academy of Cosmetic Dentistry and member of the ITI (International Team for Implantology). During 2013, he completed all available UK modules of the world renowned Dawson Academy curriculum, and also became an active Invisalign provider.