The plains between Oleg's and Renault's
Illthir, usually it is a DC 20+ to figure out the true worth of an item. That said, Illthir is pretty sure she's getting a good deal on the expensive pieces.
"Ah you like the seashell armor? It was once owned by the Merqueen of Outsea in the River Kingdoms."
You may roll 1 Knowledge (history or geography) check and/or 1 Knowledge (arcana) check. Open all the spoilers that apply.
Yes, those are the correct DCs. The Knowledge (arcana) check (roll that one second if you make 2 rolls), relates to Outsea's arcane origins and is a "most or nothing" sort of thing.
Numalar Auritonius wrote:
Numalar takes out his monocle and polishes it for a moment.
While doing so he mutters a few words and holds his symbol between his fingers. Then he pops the monocle back in, squints for a moment, and looks at the display of wares.
"Well, let's see what we have here. Quite a collection! Can you tell me anything about them?"
Examining the items with detect magic. I'm guessing the smaller-ticket items are not magical. I'm sure Zokon can identify masterwork items.
If I am allowed I will Take 10 on the spellcraft check to get a result of 20 on each.
"Of course friend have a look!"
Leishan's Nice Things price menu wrote:
A plumed, grey, conical helm..........................3,150 gp
With Illthir's help Numalar can tell this functions as a Maiden's ('Grey' or otherwise) helm.
Leishan's Nice Things price menu wrote:
A brass and silver chain coat.........................1,125 gp
Numalar can tell this functions as a +1 chain shirt.
Leishan's Nice Things price menu wrote:
A suit of black plate mail with skull designs....2,385 gp
Numalar can tell this functions as a +1 full plate.
Leishan's Nice Things price menu wrote:
A light mace marked with Sarenrae's symbol....16,475 gp
Numalar and Illthir cannot tell what this is aside from being a magical light mace.
Leishan's Nice Things price menu wrote:
A shiny longsword.............................................2,085 gp
Numalar can tell this functions as a +1 longsword.
Leishan's Nice Things price menu wrote:
A dull gray scimitar.............................................3,897 gp
Numalar can tell this functions as a +1 cold iron scimitar.