Contact the Lumière Concierge
For personalised advice on lab-grown diamond jewellery, sizing, or an existing order, our team is here to assist you every step of the way.
- Questions about a specific design, diamond or precious metal.
- Support with sizing, engraving and care recommendations.
- Help with an existing order, delivery or returns.
Chat with a Lumière Concierge
For personal advice on diamond jewellery, sizing or an existing order, our team is available to assist you in real time.
- Monday – Friday09:00 – 20:00
- Saturday09:00 – 19:00
- Sunday10:00 – 18:30
Average reply time: under 1 minute during opening hours.
Call us
To purchase a Lumière creation by phone, for personal advice on jewellery or assistance with your order.
- Monday – Friday09:00 – 20:00
- Saturday09:00 – 19:00
- Sunday10:00 – 18:30
Our team speaks English and other major European languages.
Email us
A Lumière Ambassador will reply to your message within one working day with tailored guidance.
Include your preferred metal, diamond shape and budget for faster assistance.
Prefer to write to us?
Send us a message and a member of the Lumière Concierge team will respond within one business day.
Frequently asked questions
Can you help me choose a diamond if I’m not sure what I want yet? ›
What information do you need for a ring sizing question? ›
How long do returns, resizing and exchanges usually take? ›
Do you offer virtual appointments or video consultations? ›
Still looking for an answer? Visit our Help Centre for detailed guides on orders, delivery and aftercare.