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Hartenstein Jewellery

Client Service

Personal guidance from our Antwerp diamond team.

For sizing, diamond selection, certification, delivery, aftercare, or choosing between pieces, our Client Service team can guide you before and after your order.

Hartenstein Diamonds client service

Product guidance

Ask about diamond size, metal, ring sizing, certificates, production timing, or which piece best fits the occasion.

Order support

Client Service can help with delivery questions, checkout concerns, order updates, and aftercare requests.

Personal appointments

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

Client Service

How can we help?

Share the product name, ring size, preferred diamond size, or order reference if available.