Crystal key

Crystal key is a members item, with a high alchemy value of 1 coins. At least 9 monsters drop it. The easiest is Cockroach drone (level 4, 1/466,033.78); the best rate is The Ambassador (level 5,500), at 30/1,000, about 2.9 per kill.

“A mysterious key, for a mysterious chest protected by the druids.”

MembersTradeable (not for Ironmen)High alch 1 gp

Updated 9 October 2026. Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.

Ironman verdict

You can also make it yourself: it takes 1 Crafting and gives 10 Crafting XP, using Loop half of a key and Tooth half of a key. Other sources include Muddy chest, Ice troll grunt, Ice troll female and Bork, plus 4 more listed below. Where the materials come from: Loop half of a key (dropped by Cockroach drone (level 4)); Tooth half of a key (dropped by Cockroach drone (level 4)). Making ten takes 10 × Loop half of a key and 10 × Tooth half of a key and gives 100 Crafting XP. One recipe uses Crystal key: Powered necromantic seal of the Cywir. Crystal key is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 1 coins.

At a glance

Members: Yes
Tradeable: Yes, but not for Ironmen
High alch: 1 coins
Monster drops: 9
Shops: None
Recipes: 1
Used in: 1 recipe

Monster drops

Dropped by	Level	Quantity	Rarity
The Ambassador	5500	75–115 (noted)	30/1,000
Arch-Glacor	7000	10–17 (noted)	8/200
Raksha, the Shadow Colossus	6000	10–14 (noted)	10/100
Nex, Angel of Death	7000	14–16	3/44
Rare drop table	-	9–11 (noted)	60/640
Rasial, the First Necromancer	8462	20 (noted)	6/128
Cockroach droneEasiest	4	9–11 (noted)	1/466,033.78
Cave bug	6	9–11 (noted)	1/559,240.53
Crawling hand	6	9–11 (noted)	1/1,398,101.33