Lily Arkwright

Marylebone Square, 5 Aybrook St, W1U 4EL · View on Google Maps · Visit website · 02045475144

Lily Arkwright specialise in lab-grown diamonds, moissanite and coloured gemstones, with engagement rings as the lead product. They are an authorised retailer for Chatham coloured gemstones and for Charles & Colvard moissanite, which are the two names that actually mean something in that market.

The commercially useful thing is that prices are simply on the website. Popular ranges run from around £1,162 for the Lulu Oval to about £1,912 for the Alya Oval, with finance through Dopple and Klarna. In a sector where most jewellers will not give you a number without an appointment, that alone changes how you can shop.

They do not publish a founding year or name a founder anywhere on their site, which is worth noting given how specific the rest of it is. There are showrooms in Marylebone, Manchester and Antwerp.

Consultations are booked through the site for the Marylebone flagship, Manchester or Antwerp, or run virtually. You can also simply order online, which most of their competitors do not offer for engagement rings.

Bespoke runs in four published steps: inspiration, design, wax prototype approval, then production. They do not publish bespoke timescales, so establish that early if you have a date. Returns run to 50 days, with a lifetime warranty and complimentary insured worldwide shipping, which is a stronger package than most.

Natural stones are available alongside lab-grown, but the range and the pricing are clearly built around lab-grown and moissanite. All lab diamonds are certificated.

Sixty-nine reviews at 4.9, with 25 from the past year, so it is a current record on a comparatively young London presence.

The review set is smaller than the Hatton Garden operations, so the themes are thinner: value and the buying experience come up most. Forty per cent of reviews with text mention ring buying specifically, which is a reasonable proportion for a business selling a broader jewellery range.

They reply to 99 per cent of reviews, which is essentially all of them and among the highest we counted. For a buyer weighing a lab-grown purchase where aftercare and resizing matter, a business that answers publicly is worth something.

Review figures taken from Google and checked in July 2026. We recount them monthly.

This suits someone who wants a certificated stone at the lowest sensible entry point in central London and would rather see the price before booking anything. If your budget is around £1,500 and you want it to buy a visibly substantial ring, lab-grown or moissanite is how that happens, and this is one of the few places that says so plainly.

It also suits anyone considering moissanite seriously rather than as a compromise. Being an authorised Charles & Colvard retailer means you are buying a known quantity rather than an unbranded stone of uncertain quality.

It will not suit you if you want a natural diamond with resale or heirloom value, or if the idea of a stone that is not rare defeats the purpose for you. That is a legitimate position and worth deciding before you visit.

How much are Lily Arkwright engagement rings?

Popular ranges start around £1,162 for the Lulu Oval lab diamond and run to about £1,912 for the Alya Oval. Prices are published on the site, and finance is available through Dopple and Klarna.

What is the difference between moissanite and a lab-grown diamond?

A lab-grown diamond is chemically identical to a mined one. Moissanite is a different mineral entirely, with more fire and slightly lower hardness, and it costs considerably less. Lily Arkwright sell both and are an authorised Charles & Colvard retailer for moissanite.

Do Lily Arkwright sell natural diamonds?

Yes, alongside lab-grown, moissanite and coloured gemstones. But the range and pricing are clearly built around lab-grown and moissanite rather than natural stones.

What is their returns policy?

Fifty-day returns, a lifetime warranty and complimentary insured worldwide shipping. That is more generous than most engagement ring retailers, several of whom treat rings as final sale.