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.

Emeralds are medium green with typical inclusions
Sapphire is deep blue with typical inclusions
Gold shows typical signs of wear
This Harry Winston set of emerald and sapphire rings 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