Requirements:50 slayer, 43 prayer to use protect from melee, and 61 crafting.
start: First go talk to the sailor bring a chisel and a addy ore.Bring food and prayer pots because after you cut the topaz you have to fight a monster.
Then give him the addy ore.
Than talk to him he says you need to get 50 slayer.
Talk to him again your done.