PST:

Talisman and Equipment can be identified at the blacksmith's by using its suited Identify Gem in order to activate the gray attribute which is sealed up in its original attribute.

With the different degrees of  equipments, different kinds of  "Identify Gem"  are needed.  The Green Equipments need  "Green Identify Gem", Blue Equipments need  "Blue Identify Gem"  and Golden Equipments need  "Golden Identify Gem".

One Gem can activate one piece of gray attribute.