Lili Koos is a jewelry designer and the 4th generation of a Budapest goldsmith tradition. In her Viennese studio, she combines this rich, traditional craftsmanship with modern aesthetics. Each piece is designed with attention to detail and a focus on timeless elegance.

Quality and craftsmanship are our top priorities. All jewelry is carefully handcrafted, combining traditional techniques with modern design. The pieces are made in Budapest and Vienna.

We work exclusively with high-quality materials:

• Gold: 14k and 18k gold (yellow gold, white gold, rose gold).
• Stones: Real diamonds, sapphires, pearls, and colored gemstones. Lab-grown diamonds on request.
• Sustainability: We value responsible sourcing of our precious metals and stones.

Yes, for larger diamonds (especially for engagement rings), we provide corresponding certificates from renowned institutes (e.g., GIA) that confirm the quality and authenticity of the stone.

Yes, custom designs are one of our core competencies. If you have your own vision for a piece of jewelry or would like to design an engagement ring according to your personal preferences, we will gladly assist you from the first sketch to the finished unique piece. Please contact us for a consultation.

To ensure your ring fits perfectly, you can find a ring size guide on our website. If you're still unsure, please feel free to contact us or schedule an appointment at our studio to have your size professionally measured.

In most cases, resizing is possible. However, please note that for certain designs (e.g., full-eternity rings), this can be technically complex or only possible to a limited extent. Feel free to contact us in advance regarding this.

Austria & EU: Standard shipping within the European Union can be found under Shipping Policies.

International: For deliveries outside the EU, we calculate shipping costs individually based on the destination country and the corresponding insured value.

Items in stock: These are usually shipped within 1 to 5 business days.

Made-to-order: As many of our pieces are custom-made for you, the delivery time is usually 4-8 weeks, depending on the complexity of the item.

Of course. All our shipments are fully insured against loss or damage in transit. Once your package is on its way, you will receive a tracking number to follow its progress.

You have the right to return unworn and undamaged items within 14 days of receipt. We ask that you register your return in advance by sending an email to hello@lilikoos.com.

In accordance with statutory provisions, the following items cannot be returned or exchanged:

• Personalized products (e.g. with custom engravings).
• Custom-made products (unique items designed specifically at your request).
• Earrings (for hygiene reasons).

The cost of return shipping is to be borne by the buyer. We strongly recommend insured shipping, as we cannot assume liability for returns that do not reach us.

To ensure your jewelry piece shines for generations, we recommend the following:

• Removing your jewelry before sports, sleeping, or showering.
• Avoiding contact with perfume, cosmetics, and cleaning agents.
• Cleaning with a soft cloth and, if necessary, with a very mild soap solution.

The statutory warranty period applies. Should a defect occur within this period that is not due to your own fault or normal wear and tear, we offer professional repair or replacement.

Absolutely. We offer personal consultations at our studio in Vienna. Please use our online tool for scheduling an appointment so we can dedicate enough time to your request.

You can reach us at any time by email at hello@lilikoos.com or by phone at +43 660 602 8842 (AT). We look forward to advising you.