An adamant trimmed armour set (sk) is a variant of the Adamant armour set (sk). None of the pieces can be made by a player. The stat bonuses of this item are identical to an ordinary Adamant armour set. Only Members can find pieces of it, but non-members can purchase it and wield it. All these are possible rewards from completing level 2 Treasure Trails.
Adamant is, from the three trimmed metal armour sets, the less used since low-defence players go for Black armour (rarely used aside from looks) and high-level players go directly for Rune. In consequence, it is cheaper than trimmed Black armour and rarely bought at the grand exchange.