Day's is a service retail jewelry company with stores located in Maine and New Hampshire, as well as online at www.daysjewele ... rs.com. Day's Jewelers was founded in Portland, Maine in 1914 by Harry Davidson and his three sons. The company grew to 22 stores throughout Northern New England. In 1988, the company was purchased by Jeff and Kathy Corey. Day’s Jewelers was selected among the Best Places to Work in Maine for 2014, 2015, 2017 and 2018. read more