The best opal and tourmaline jewels for October birthdays

Those lucky enough to be born in October may choose from two gorgeous birthstones: opal and tourmaline. Traditionally thought to promote hope and peace, each comes in a variety of different shades but, just likes September's sapphire jewels, the best come in the form of sea-inspired jewellery.

Opal and diamond bracelet, £12,880, Amrapali

18ct white gold tourmaline and diamond cocktail ring, POA, Theo Fennell

Rubellite tourmaline and diamond secret watch, POA, Graff

14 karat yellow gold opal earrings, £780, Melissa Joy Manning at Net-A-Porter

18ct yellow gold and opal necklace, £3,425, Irene Neuwirth at Matches Fashion

Signature compass pendant with opal and tourmaline, £1,875, Retrouvai at Browns

Peacock cuff in platinum with opals, tourmalines and diamonds, POA, Boodles

Enchanted Lotus white gold and black tourmaline pendant, £2,200, De Beers

18 karat white gold opal, sapphire and diamond earrings, £27,000, Sutra at Annoushka

18 karat gold dangle earrings with garnet and tourmaline, £4,228, David Yurman at Neiman Marcus