Buy OSRS Jade amulet
The jade amulet is a members-only item in Old School RuneScape. It is made by stringing an unstrung jade amulet with a ball of wool. This needs level 1 Crafting and gives 4 Crafting experience. Players with level 80 Magic who have finished Lunar Diplomacy can string it with the String Jewellery spell instead. The spell uses 5 water runes, 10 earth runes, and 2 astral runes, and gives 83 Magic experience plus 4 Crafting experience.
The main reason players want a jade amulet is to enchant it. With level 27 Magic, the Lvl-2 Enchant spell turns it into an amulet of chemistry. The spell uses 1 cosmic rune and 3 air runes and gives 37 Magic experience.
The jade amulet can be worn, but it has no combat bonuses in any category. It is tradeable and can be noted, and it weighs very little at 0.007 kg. Its in-game description says, "I wonder if I can get this enchanted." The item came out on 2 February 2017. It is a simple item that works well for Magic training and for making amulets of chemistry.