This elegant pendant by Kaizarin is also simple – a rectangular piece of tourmaline set in 18k rose gold.

The site notes, “This tourmaline is a large green octagon shape set in rose gold and diamonds attached to a rose gold chain that can be extended between 15.5 and 16.5inches. Perhaps one of the most beautiful stones of this family is the rare, emerald green chrome tourmaline. Each piece of jewellery is stamped by the Assay office in the UK with Kaizarin’s maker’s mark and 750 hallmark.”

This is priced at £850.