I’m ready to make my first fine jewellery purchase but want to avoid getting sucked into trends that I’ll grow to dislike. How can I find something I’m likely to love forever?

If you want something to last a lifetime, I’d advise buying a base of 14k gold because it doesn’t oxidise over time, and I’d pick earrings because, often, they’re the most timeless thing we own. Hoops are a great start – they’re classic and can be so subtle you forget you’re wearing them.

I’ve worn the same jewellery every day for years. I love what I wear, but I feel like I should mix things up – what’s your advice?

I think it makes sense. If you have pieces you absolutely love, you don’t have to take them off, but you can definitely layer, which is a big trend right now. I’m always wearing three bracelets, two necklaces: if you have foundation pieces, adding other things on top is a great way to give dimension. When choosing what to add, I always think about mixing something textured, something plain and something sparkly together for a bit of everything.

I’m turning 30 soon and really want to buy myself a diamond ring to celebrate. I’ve been saving up for a while, but I’m struggling to shake the mindset that I should wait for a man to buy me one – and worrying about what I’ll say when people ask me about it. I know I’m very lucky to have this dilemma, but what’s your advice for reframing it?

Never wait for anybody to buy you what you really want – if you can afford it. It’s an empowering move, and you’d be surprised by how much other people will appreciate that. It’s beautiful to receive a gift from your significant other that is diamonds, but that doesn’t mean it’s the only way – there’s something to be said for self-appreciation, too. Once you break the barrier, you’ll feel amazing.

Mejuri Covent Garden is open Monday-Sunday, 11am-7pm at 30 King Street, London, WC2E 8JD. Shop online at mejuri.com

Mejuri founder Noura Sakkijha solves our jewellery dilemmas