I have the same exact style of bag, but in beige Guccissima leather. I purchased it in the summer of 2008, on sale. (So mine may even be from 2007...) I almost never carry it anymore. Have been thinking about selling mine as well.
I think it is a 'Gucci Abbey D-Ring Small' Hobo bag. If you don't use it i think you should sell it. A lot of people are buying vintage designer bags at the moment as it's very on trend, especially monogram logo bags