This unique 2mm 9ct white gold ring with a 7mm by 13mm freeform tourmaline set in 18ct yellow gold highlights the tri-colour tourmaline, typically known as a watermelon stone. Can be re-sized up to a N and down to a J. Anne makes these rings good enough to eat, or certainly, good enough to wear. 

Anne Morgan Jewellery- Silver 18ct Yellow Gold Ring with Freeform Tourmaline