A Lopez Island woman that kept a set of keys after losing a job at the post office, and later used them in the theft of several pieces of jewelry – including a diamond ring  – will spend four months in jail or on work crew for felony theft.

Following an earlier conviction in San Juan County Superior Court, in which she pleaded guilty Oct. 30 to one count of second-degree theft with intent to resell, Susan Marie Klein, 30, was ordered to pay $315 in restitution Nov. 28 for theft of a diamond ring that she sold on eBay. She was sentenced to four months in jail, or four on work crew in lieu of jail, and ordered to pay $800 in fines and fees.

A Class C felony, second-degree theft carries maximum penalties of five years in prison, a $10,000 fine, or both; however, the standard range of sentencing set by the state is 2-6 months in jail. Klein was also convicted in December 2013 of prescription drug fraud.

According to court documents, the U.S. Postal Service terminated Klein’s employment in February 2012; the keys issued to her were never returned. Three months later, a package containing a diamond ring vanished from a post office box and was later identified as the same ring sold by Klein for $950 as part of a transaction on eBay. Another piece of jewelry shipped later to the same post office box turned up missing as well.

Prosecutors filed felony theft charges against Klein earlier this year on the heels of Postal Service investigation into the missing jewelry. Klein, who claimed initially to have stumbled upon the ring in a parking lot, reportedly admitted to the theft as the postal investigation proceeded, according to court documents.