About Diamond Nexus

Diamond Nexus sells engagement rings and fine jewellery built around stones that are made rather than mined, at a fraction of what a mined equivalent costs.

Three different stones, and the difference matters

The shop offers mined diamonds, lab-grown diamonds and its own Nexus Diamond alternative, and these are not three grades of the same thing. A lab-grown diamond is chemically and physically a diamond, grown in a machine instead of the ground, and it behaves like one. The Nexus alternative is a simulant: a different material cut to look like a diamond. It is sold as colourless and flawless because it is manufactured that way, and it costs far less. Before choosing, understand that a simulant will not test as a diamond and has essentially no resale value — which is fine if you are buying something to wear and not something to sell.

What they make

Engagement rings are the core, with solitaires, halos, three-stone and vintage-inspired settings, and there is a custom route if a stock design is not what you want. Beyond rings there are wedding bands, earrings, necklaces and bracelets. Metals run through 10K and 14K gold in white, yellow and rose, alongside alternative metals for men's bands.

Buying sensibly

Know your ring size before ordering, and if you are buying as a surprise, an existing ring worn on the same finger is the safest guide. Look at the guarantee terms, since a lifetime warranty on a setting and a lifetime stone guarantee are two separate promises with their own conditions. If you are buying in the UK from a US shop, expect the delivered price to include import VAT and possibly duty, so factor that in before comparing with a British jeweller. And decide honestly which stone you want: some people care that the stone is a real diamond, others care only about how it looks, and both answers are legitimate.

Using a Diamond Nexus discount code

Build the ring, and the code goes into the promo box on the checkout page where the order summary is shown.