+44 20 351 466 05
+49 89 1222 893 0

Our Satisfaction Guarantee

RenéSim stands for superb service and superb quality. We strive for an excellent and, above all, long-standing relationship of trust with our customers.
For this reason your satisfaction is our top priority! 100% guaranteed.

Our promise of satisfaction covers the following provisions for a period of two years from the date of purchase, applicable without geographical restrictions:

  • Free size adjustment by RenéSim of any ring purchased until it is a perfect fit
  • Rapid repair or alteration if you are still not completely satisfied
  • Shipping and returns are free of charge for you – we cover these costs
  • This guarantee does not affect statutory warranty rights and statutory rights of cancellation


Contact us at any time if you have questions.

renesim GmbH
Headquarters: Amiraplatz 1, D-80333 Munich
Branch Office: 16 Hanover Square, Mayfair, W1S 1HT London
T +44 20 351 466 05
F +49 89 1222 893 99


Warm regards

Maximilian Hemmerle & Georg Schmidt-Sailer
Managing Directors of renesim GmbH


Maximilian Hemmerle & Georg Schmidt-Sailer


You may also be interested in the following:

Read about the vision of the founders and Managing Directors Maximilian Hemmerle and Georg Schmidt-Sailer here: Vision.

Find out more about the history and company philosophy of RenéSim in History.

We attend to every customer request personally and individualise any piece of jewellery for you: Personalised Jewellery.

Explore information on the style of the designers and jewellers Franz & Maximilian Hemmerle: Style and Design.


About RenéSim Service Ring Sizes Newsletter Press Jobs Terms and Conditions Privacy Policy Credits and Legal Notice

renesim GmbH

Branch office (appointment only):
16 Hanover Square, Mayfair
W1S 1HT London, United Kingdom
T +44 20 351 466 05

Amiraplatz 1, D-80333 Munich
T +49 89 1222 893 0

Hours Mon - Fri 8 am - 6 pm


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100% Satisfaction guarantee
  • 180 years of family craftsmanship in the jewellery business
  • 30-day right of return
  • Supreme quality and top service
  • Free ring size adjustment
  • Personal customer care and high availability
  • Secure payment and free shipping from Munich
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As an online jeweller, RenéSim combines the benefits of a modern online-based business model with 180 years of family-run traditional craftsmanship in the jewellery industry. Gemstones such as diamonds are the central focus at RenéSim; we supply high-quality, thoroughly individual pieces such as engagement rings in addition to loose diamonds. We offer unique diamond post earrings, diamond rings, memory rings, engagement rings and much more. Consult the jewellery experts at RenéSim!

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