Tips, tricks & notes:

• You can use trimmed and gold trimmed black armour in the quest, so if you have it, there is no need to go out of your way to obtain normal black armour.
• You can buy black armour at multiple stores. Black platebody: Varrock armoury or Ardougne platebody shop, Black platelegs: leg shop in Al Kharid or the Champion's Guild, Black full helm: Champion's Guild
• Granite is mined in the quarry south of the desert Bandit Camp. Players who have finished Enakhra's Lament can easily teleport to the nearby temple using a charged Camulet. Any size granite piece will do.
• After completing the quest, you may complete the Knight Waves Training Ground.