Product guidance
Ask about diamond size, metal, ring sizing, certificates, production timing, or which piece best fits the occasion.
Client Service
For sizing, diamond selection, certification, delivery, aftercare, or choosing between pieces, our Client Service team can guide you before and after your order.

Ask about diamond size, metal, ring sizing, certificates, production timing, or which piece best fits the occasion.
Client Service can help with delivery questions, checkout concerns, order updates, and aftercare requests.
Arrange an online consultation or an Antwerp atelier visit for engagement rings, made-to-order jewellery, or gifting.
Contact
Email info@hartenstein-diamonds.com
Telephone +32 3 808 72 00
Atelier visits are by appointment at Hoveniersstraat 2, 2018 Antwerp, Belgium.
Request an appointment