The special gemstones for jewelry processing are unique in equipment. You said that you should equip two amber blood at the same time. I think you are mistaken, because now magic crit and physical crit are unified, and there are two gems that explode+12 for jewelry processing. Although the attributes are the same, they are different gems, which can be equipped at the same time, that is to say, two+12 exploding gems can be equipped at the same time. If you look closely, one of them should be the blade stone.