Jewels that you’re going to love forever are always a wise investment, but picking  personalised jewellery like an initial necklace or ring is guaranteed to make your purchase just that little bit more special. With that extra personal touch, they make the perfect presents, whether you’re shopping for a loved one or self-gifting. From alphabet earrings to bespoke bracelets and engraved signet rings, this is our edit of the best initial jewellery.