Bespoke diamond jewellery, designed by appointment in Knightsbridge.
Create a custom piece from CAD design to finished jewellery, or view selected ready-to-wear pieces, certified loose diamonds, sourced luxury watches and branded eyewear at our private Knightsbridge office.
Bespoke jewellery, designed around you.
A bespoke piece starts with your idea, reference or occasion. We turn it into a CAD design so you can review the piece through several design stages before it moves to casting.
The £500 CAD design deposit comes off your final total. Once your design is confirmed, 50% starts the work and the balance is paid on collection. Most pieces are completed within 2 to 4 weeks, depending on complexity.
The current selection
Selected stock pieces from £884.99 to £3,699.99, mostly in 9ct gold with VVS lab-grown diamonds, plus a natural diamond engagement ring.
9ct White Gold Pear Shape Tennis Bracelet (40 pointer)
£3,699.99View piece →
Princess Cut 18ct White Gold Engagement Ring (1ct)
£1,299.99View piece →
9ct Gold Peridot & Diamond Halo Pendant Necklace (Emerald Cut)
£884.99View piece →
Round & Pear Eternity Ring (40 pointer)
£2,620View piece →
Choose the stone first, then build the piece around it.
Choose from lab-grown diamonds certified by IGI and natural diamonds certified by GIA, for a bespoke design or as a loose stone.
IGI certified
GIA certified
Luxury, sourced by enquiry.
Rolex · Cartier · Audemars Piguet
Tell us what you are looking for and we’ll confirm availability.
- Cartier watches available below retail
- Every watch original
- Supplied with warranties
Cartier & Meta glasses
Designer eyewear with custom detail, available by enquiry.
- Cartier glasses, with optional diamonds
- Meta glasses
- Below retail · prescriptions arranged through a partner
Inside NTB Jewellers
Three steps to your visit
Message us on WhatsApp
Tell us what you are looking for: bespoke jewellery, a stock piece, loose diamonds, watches or eyewear.
Confirm your appointment
We’ll confirm a suitable time, Monday to Friday between 11am and 6pm.
Visit us in Knightsbridge
View available pieces, discuss your design, compare diamond options or talk to us about sourcing.
Visit NTB Jewellers by private appointment in Knightsbridge.
Whether you are designing a bespoke piece, choosing a certified diamond, viewing stock jewellery or enquiring about a sourced watch, start with a WhatsApp message and we’ll guide you from there.
Mon–Fri 11am–6pm · 21 Knightsbridge, Second Floor, Office 16, SW1X 7LY