18ct rose and white gold pink tourmaline diamond spiral necklace ptt659pt the pink tourmaline collection features the romantic tourmaline gemstone in a range of pale pink to deep rose pink almost red colours this gorgeous coloured stone is often associated with feelings of passion and love so is the perfect gem to gift someone close to your heart this striking tivon pink tourmaline necklace is a true statement piece it boasts a vibrant288ct pink tourmaline stone set in the centre of five