Stone

Stone is used for upgrading higher-level buildings, training higher-level troops, some research and Maester expeditions. It can be produced using stone quarry plots at your Keep, prayed for at the shrine, dropped by creatures or gathered in the following quantities: Stone can also be purchased in the store at a cost of:
 * Level 1 - 2,000
 * Level 2 - 2,600
 * Level 3 - 5,400
 * Level 4 - 9,300
 * Level 5 - 14,000
 * Level 6 - 21,000
 * 3K Stone = 45 Gold
 * 15K Stone = 200 Gold
 * 150K Stone = 1,500 Gold
 * 400,000K Stone = 3,500 Gold