Lab-Grown Diamonds
IGI-certified lab-grown diamonds set in fully bespoke engagement rings at 57 Jewellers Hatton Garden. Chemically and optically identical to mined diamonds, typically at a significantly lower cost, in every shape and size.
Quick answer
57 Jewellers is an independent luxury watch and jewellery dealer based at 69 Hatton Garden, London, specialising in buying, selling, sourcing and part-exchanging Rolex, Cartier, Patek Philippe, Audemars Piguet, Omega and other luxury watches.
Every lab-grown diamond comes with full IGI grading report — colour, clarity, cut, carat.
Identical refractive index and hardness to mined diamond. The naked eye cannot tell.
Same specification, dramatically lower price — bigger stone for the same budget.
Round, oval, emerald, cushion, pear, princess — larger carats available on enquiry.
Designs to inspire
Price on enquiry — message us on WhatsApp for availability and a personal quote.
Platinum · round brilliant
Price on enquiry
18ct yellow gold
Price on enquiry
Platinum · diamond halo
Price on enquiry
18ct yellow gold
Price on enquiry
Platinum · pear cut
Price on enquiry
18ct yellow gold
Price on enquiry
Platinum · hidden halo
Price on enquiry
Platinum · pavé band
Price on enquiryA lab-grown diamond is a real diamond — pure crystallised carbon — grown in a laboratory using either HPHT (High Pressure High Temperature) or CVD (Chemical Vapour Deposition). The chemical, physical and optical properties are identical to a mined diamond. It is not cubic zirconia or moissanite; it is diamond.
Independent labs (IGI, GIA) grade lab-grown diamonds on the same 4Cs scale: cut, colour, clarity and carat.
Sparkle & appearance: identical. No jeweller can tell the difference by eye.
Hardness & durability: identical — both are 10/10 on the Mohs scale.
Price: lab-grown is significantly cheaper for equivalent quality.
Resale value: lab-grown has weaker resale. Natural diamonds hold value better long-term.
Ethics: lab-grown sidesteps mining concerns entirely.
If maximum size for your budget matters more than long-term resale, lab-grown is the clear choice. For an heirloom intended to be sold or passed on with value, natural still wins.
Lab-grown diamonds are sourced directly and set into fully bespoke engagement rings in our Hatton Garden workshop. Every diamond comes with its full IGI report and can be inspected at the showroom before the ring is built.
Solitaire, halo, hidden halo, three-stone, eternity — any setting style, any metal (platinum, 18ct yellow, white or rose gold). Lead times confirmed at the consultation stage.
57 Jewellers
Explore more services
Explore more services from 57 Jewellers, an independent luxury watch and jewellery dealer based at 69 Hatton Garden, London. Whether you are looking to sell a watch, source a specific model, part-exchange your current watch or understand why clients choose 57 Jewellers, these pages explain the process in detail.
Free WhatsApp valuation and same-day bank transfer on Rolex, Patek, AP, Cartier and more.
Rare and waitlist references — enquiries welcome, subject to availability.
Trade your current watch against any piece in stock or on order, with strong trade values.
Independent Hatton Garden dealer — in-house inspection, trusted by clients.
Gold jewellery, scrap, coins and bullion tested in front of you at 69 Hatton Garden.
Common questions
Speak to 57
Send your spec — shape, carat, budget — on WhatsApp. We'll quote IGI-certified options as soon as we can.
London · Hatton Garden & Dubai · Enquiries answered personally
