Internet diamond and jewelry retailer Blue Nile said Monday that Robin Easton, its chief financial officer, has resigned from the company after only six months on the job, effective March 31. Terri Maupin, the Seattle-based company’s vice president of finance and controller, will assume the duties of the principal financial and accounting officer.

Maupin, 46, has served as the company’s VP of finance and controller since July 2004. From September 2003 to July 2004, she served as the company’s controller.

Easton’s appointment for the job was announced in August 2007 and he took over the position the following month. Prior to Easton’s appointment, the company announced in June 2007 that Scott Devitt was named to the CFO position. However, before beginning his first day on the job, Blue Nile said in July that Devitt decided not to take the position because of “personal considerations” involving the relocation of his family.

Prior to joining Blue Nile, From February 2001 to September 2003, Maupin served as the staff vice president of Finance and controller at Alaska Air Group, Inc., the parent company of airline companies Alaska Airlines, Inc. and Horizon Air Industries, Inc., and staff vice president of Finance and controller at Alaska Airlines, Inc. Prior to Alaska, Maupin served as director of Financial Reporting at Nordstrom, Inc.

Maupin holds a B.A. in Accounting from Western Washington University.

JCK