Mint
Mint condition items are completely blemish-free and have not been modified in any way. If there are any blemishes and/or modifications, the item needs to be listed as a condition less than mint.
This Gibson sunburst has no blemishes and the nice hardshell case shows it has been well taken care of.
Excellent
When an item has been used, but only has minor cosmetic defects, this can be considered Excellent . Minor surface level scratches, such as pick marks from regular use, would qualify.
This snare drum demonstrates standard minor surface level cosmetic defects on an Excellent condition item.
Very Good
Very Good describes items with more cosmetic imperfections than Excellent, but are still in great condition overall. There may be some scratches, finish dings or buckle rash, but nothing that affects the playability or function of the gear.
Very Good items can have more minor cosmetic imperfections, like this bass.
Good
Good condition includes items that are in fine working order, but have significant cosmetic imperfections. A pedal with scratches and dents on its chassis, a guitar with some cracks in the binding, or an old snare drum with some corrosion on the lugs would all be classified as Good. Items with dents, cracks or corrosion qualify as Good as long as they are still playable and fully functional.
This Stratocaster has more severe blemishes, but is still completely functional.
Fair
Fair condition items have various imperfections that impact the function of the item. Fair items aren’t broken, but have some minor functional issues. Examples of items in Fair condition are scratchy pots on an amp, or a playable guitar with dead spots in the upper register.
This guitar has a noticeable top crack, which impacts its tonal and projection functionality.
Poor
Poor condition items have clear functional problems that will generally require repair. Examples of items in Poor condition include a guitar in which the action is too high to be playable and a keyboard with lots of broken keys.
This amp head shows clear functional issues with missing knobs, a stripped down non-original circuit and is overall in poor cosmetic condition.