Shining Diamonds

Shining Diamonds has a ground-floor showroom at 10a Hatton Garden — one of the few on the street that opens on Sundays. That alone makes them worth knowing about if your schedule only allows a weekend visit.

They carry both natural and lab-grown diamonds, with a solid range of ready-to-wear engagement ring styles alongside a bespoke design service. The showroom is welcoming for walk-ins and the staff are helpful without being pushy.

Their online presence is also strong, with a good website that lets you browse inventory before visiting. A practical option for buyers who want the flexibility of extended hours and no-appointment access.