The condition of lots can vary widely and the nature of the lots sold means that they are unlikely to be in a perfect condition. Lots are sold in the condition they are in at the time of sale.

Rock crystal has very minor chips to the back
Diamonds are bright and lively
This rock crystal and diamond ring is overall in very good condition

The condition of lots sold can vary widely due to factors such as age, previous damage, restoration, repair and wear and tear. The nature of the lots sold means that they will rarely be in perfect condition. Lots are sold in the condition they are in at the time of sale