RuneScape Classic Wiki
RuneScape Classic Wiki
The main RuneScape Wiki has an article on: Emerald necklace
The Old School RuneScape Wiki also has an article on Emerald necklace.

A Emerald necklace is a piece of jewellery the can be made with the Crafting skill. It is made by using a gold bar on a furnace while having a necklace mould and a emerald in your inventory. It can be crafted at level 24 and provides 60 experience.

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Shop Location Stock
Grum's Gold Exchange Port Sarim 0