We offer original works by our in-house designer, custom pieces, as well as watches, rings, earrings, pendants and more from a wide variety of international and domestic Jewellery houses. . Gallery Gemma is Located in the Historic Alton Mill Arts Centre in the Village of Alton. Stop by our showroom for a one-on-one consultation and to see our rotating collection of gems and jewewellry. more... See more text