My personal style signifier is jet jewellery, which I’ve been obsessed with since I first visited Grays Antique Market in London. There was a seller called Allison Massey who specialised in jet, which is a variety of condensed coal, and she told me how it originated in Whitby in Yorkshire. I have antique jet earrings and necklaces that I wear a lot, and the last time I was in London I bought a French jet tiara, which is actually glass. Much of my collection is made up of carved roses,…

