Pearls and luck perks on items can co-exist and stack. Pearls socketed into items add a bonus luck value socketed items. These do not override luck perks. A pearl would not override a luck perk. Players can socket a pearl onto any item with an existing Luck perk to increase the luck that item provides. In rare instances there may be a special item we create that would have both a pearl socketed and a luck perk - in which case they would stack.