With Clarity

With Clarity sells both lab-grown and natural diamonds, kept in separate collections, plus coloured lab-grown stones, across a wide range of shapes including round, oval, cushion, emerald, pear, princess, radiant, heart, marquise and Asscher. You can shop either way round, starting with a diamond or starting with a setting and customising it, so the stone-first route is well supported.

The company is based in New York, with a showroom on Spring Street and both virtual and in-person appointments. It also offers a home preview service that sends 3D-printed replica rings so you can try styles before buying. Orders come with a lifetime warranty, free insured shipping and returns, and free resizing. Filter to lab-grown when browsing, and confirm Swiss delivery at checkout.