Diamond Palace Jewellers

36 Greville Street, EC1N 8TB · View on Google Maps · Visit website

Diamond Palace began in 1994 as a small family business in Hatton Garden, and Peter and Sheila have guided couples through the purchase for more than twenty years. The showroom is at 36 Greville Street, and by their own count they have made more than 10,000 rings.

Google shows 858 reviews. We analysed 850: 835 are five star, six are four star, and nine sit below that. The record runs back 13 years and is still growing, with 187 reviews in the past twelve months.

Natural and lab-grown diamonds are both on offer, and bespoke work starts from a published £2,500, with a CAD design to approve before anything is made.

Our Top 100 ranks every London business we could verify as a genuine engagement ring jeweller, 311 of them from a pool of 1,120 candidates, on the strength of their Google review evidence. Diamond Palace Jewellers ranks #24 of 311.

They also appear on five of our ranked lists: No. 10 on our First-Time Buyers list and No. 10 on our Most Reviewed list, and they are on our Open Late, No-Pressure Jewellers and Lab-Grown Specialists lists.

Depth of knowledge is the biggest theme, mentioned by 133 reviewers. Eighty-one describe the bespoke and design process, 79 mention patience with questions, and 59 report that the partner loves the ring. Fifty-three mention aftercare or resizing, and 33 describe being guided through as a nervous first-timer.

The handful of critical reviews are about a first meeting that did not go well, not about a finished ring. Against 835 five-star reviews that is a small share.

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

This suits a first-time buyer. Thirty-three reviewers describe arriving as nervous novices and being walked through it, 27 mention no pressure to buy, and they are No. 10 on our First-Time Buyers list.

It also suits a buyer who wants a bespoke ring with the terms set out in advance: from £2,500, roughly four to six weeks, a CAD design to approve before anything is made, and the making done in Hatton Garden.

Consultations are booked, in the showroom or virtually, so plan a visit rather than dropping in. Their rings come with a lifetime warranty and free resizing.

How much does a bespoke ring cost at Diamond Palace?

Bespoke designs start from £2,500. The final price depends on the diamond, the design and your budget.

How long does a bespoke ring take?

Roughly four to six weeks. Each piece is made individually in Hatton Garden, so the timing depends on the design.

Do I need an appointment at Diamond Palace?

Yes. Consultations are booked, either at the showroom at 36 Greville Street or virtually. The showroom is open Monday to Friday 10.30am to 6.30pm and Saturday 10.30am to 5.30pm.

Do they sell lab-grown diamonds?

Yes, both natural and lab-grown, and they are on our Lab-Grown Specialists list.