Christa Harman started working with glass in 1993 at the Columbus College of Art and Design (CCAD), when a friend asked her to assist him in the glass studio. She fell in love with glass and changed her major from Illustration to Glassblowing, but had to leave CCAD shortly after that. In 2000, her wife, Gwen Jones, encouraged Christa to pursue her passion and make her own production work. They sold Christa's work at art/craft fairs for a few years. Meanwhile, Christa did glass demonstrations at the Works glass studio in Newark, and Franklin Park Conservatory in Columbus. Christa also taught glass classes at Glass Axis in Columbus. In 2008, with the support of her family, Christa received her BFA in Glass, with honors from The Ohio State University. She completed a residency at Hiroshi Yamano’s studio; Ezra Glass; in Fukui, Japan in 2009, and went on to pursue her Masters of Fine Arts at CCAD’s MFA program. After completing her MFA in 2012, Christa taught Design and Glass at CCAD until 2018.

In 2018 Christa and Gwen couldn't pass up an incredible business opportunity in Delaware, Ohio; so they started the journey of opening their own glass studio. They moved their family to Delaware and started rehabbing a 1940s' service station. In 2018 they brought the hot shop into production, followed by the cold shop in 2020. The 2nd building will be rehabbed as close to the original design as possible. It was scheduled to open as a gift store and gallery for emerging artists in 2021, but the COVID pandemic has delayed the opening until Spring of 2023. Christa and Gwen are hoping to offer classes in the Fall of 2022. Their line of glassware can be bought online, by appointment in person, and at several Art Fairs throughout the summer. 

Seventh Circle Glass Studio specializes in well designed functional production, commissions, and a small line of glass sculpture.