A character may attempt to assess the value of an item in a particular market. The value will depend on the quality of the item, the intrinsic value of the item (i.e. how much it cost to make or acquire) and its rarity and demand in the market. To assess the value of an item, he/she should make a dice roll using his/her Valuation (including relevant specialisms) + IQ.
The difficulty will vary from about 2 for a relatively common item to about 12 for a very rare, one-off item.
If the character succeeds, the referee will tell his/her player the fair price of the item in that market. If he/she fails, the referee will give his/her player a false estimate of the fair price of the item in that market (out by as much as the referee feels is appropriate).
A character may make only one attempt to assess the value of an item in a particular market.