Christine Decker, sworn expert in jewellery and gemmologist in Luxembourg
I value, date and authenticate antique jewellery and precious stones from the 18th to the 20th century, for private clients, professionals and judicial authorities. Each expertise ends with a written report.
Decker Expertise
Sworn expert in antique jewellery (18th–20th century) and gemmologist
+352 691 809 626
christine.decker04@gmail.com
Monday to Friday, by appointment only
Services
Areas of expertise
Expert appraisals of jewellery and precious stones for private clients, professionals and judicial authorities.
Valuations
Valuation for insurance, estates, division of assets or sales.
Gemmological analysis
Identification of stones and of any treatments they have undergone.
Dating and authentication
Study of periods, hallmarks and any alterations.
Court expertise
Identification, dating and valuation in disputes, estates or court proceedings.
How it works
Stages of an expertise
Each expertise is carried out with care and independence, within short timeframes suited to the assignment.
- First contact
Contact us by phone or email to explain your request and arrange an appointment. - Quote and assignment
The assignment, fees and timeframes are agreed before any work begins. - Examination of the jewellery
Each piece is examined with the appropriate instruments, always in the presence of the client, the competent authority or the parties concerned. - Expert report
A written report sets out the observations, the conclusions and, depending on the assignment, the valuation of the jewellery. It is delivered within the agreed timeframe.
About me
Christine Decker
Art historian and gemmologist, I am a sworn expert in antique jewellery in Luxembourg. I work for private clients, professionals and the courts.
The daughter of an antique dealer, I learned the trade in my father’s shop, where I have worked since 2016 on sales, purchases and the valuation of antiques. I then spent several years in London with a well-known antique jewellery dealer, where I examined pieces from every period, every day.
Request an appointment
Call or email me to explain your request, and I will get back to you to arrange an appointment.
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