Finest 4C's
BESPOKE DIAMOND RINGS
Embrace the allure of our jewelry and make a statement that echoes sophistication, individuality, and everlasting elegance. Unveil the extraordinary with Finest4Cs.
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Bespoke Engagement Rings.
From custom engagement rings to recreating a family heirloom, bespoke designs are a natural extension of Finest4Cs. We work with you to create a one-of-a-kind piece that's distinctive, inimitable 100% custom.
Classic Bestselling Jewellery
Visit Us In Store
Address: Unit G.1, Ground Floor, Treasure House
19-21 Hatton Garden, London EC1N 8BA
Contact Us: +44 7398 964990
Working Hours:
Monday – Friday: 10:00am – 6:00pm
Saturday: 10:30am – 5:30pm
Sun: Only on Appointments
Finest4Cs FAQ’s
How does the bespoke process work?
Every piece we create begins with a private consultation at our Hatton Garden showroom. During your appointment, our diamond experts will guide you through diamond selection, ring design, metal choice and setting style. Once your design is confirmed, our master craftsmen create your piece to order. We keep you informed at every stage.
How do I book a consultation?
Simply book online via our Book a Consultation page , send us a WhatsApp message, or email us at info@finest4cs.com. Consultations are available at our showroom at Unit G.1, Treasure House, 19-21 Hatton Garden, London EC1N 8BA. We offer both weekday and weekend appointments.
How long does a bespoke piece take to create?
Most bespoke engagement rings are ready within 2–4 weeks of your design being confirmed. We will give you a precise timeline at your consultation. If you have a specific deadline — a proposal date, anniversary or birthday — let us know and we will do everything we can to accommodate it.
Do you offer both natural and lab-grown diamonds?
Yes. We offer a curated selection of both natural and lab-grown diamonds, all certified by GIA or IGI. Both are chemically, physically and optically identical — the difference is origin and price. Lab-grown diamonds typically cost 60–80% less than natural diamonds of equivalent quality. We are happy to walk you through both options at your consultation.
Where are you located?
Our showroom is at Unit G.1, Ground Floor, Treasure House, 19-21 Hatton Garden, London EC1N 8BA — in the heart of London's jewellery quarter. We are open Monday to Friday 10am–6pm and Saturday 10:30am–5:30pm. The nearest tube stations are Chancery Lane (Central line) and Farringdon (Elizabeth, Circle and Metropolitan lines).
Our Hatton Garden Showroom
Come and see our collection in person at Treasure House,
19-21 Hatton Garden, London EC1N 8BA. Open Monday to
Friday 10am–6pm and Saturday 10:30am–5:30pm.
Complimentary UK Delivery
All orders include free insured delivery across the UK,
carefully packaged to protect your piece.
Lifetime Warranty
Every Finest 4Cs piece comes with a lifetime warranty
covering manufacturing defects, and a complimentary
cleaning and inspection service at our showroom.
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