Just like any accessory, engagement ring trends go in and out of fashion. The diamond solitaire that's so popular nowadays wasn't the done thing 100 years ago, so you're more likely to get a cut that's unusual. If you can't tell the difference between a row of platinum set brilliant cuts, but going bespoke is out of your price range, this is the way to go. Making the right choice can still be tricky, though. Hannah Summers, who is currently engaged, knows how tough finding the perfect ring can be. "We've gone to fairs, shops, looked online and not found the right one yet. I'm happy to wait for something I love. I'm just not a £5k ring person and I joke that there will be a wedding before the ring!"
Top tip: "Look at museum jewellery collections to work out what you like (even if beyond wildest dreams to ever buy)," says vintage writer Frances Ambler.