Visit us at our Jewellery Laboratory:
Dorotheergasse 17, 1010 Wien
Opening times: Mon - Fri 8.00 a.m. - 3.00 p.m.
Tel. +43-1-515 60-277
Fax +43-1-515 60-555
Appointments are not necessary. The appraiser will take receipt of your jewellery and gemstones for assessment. You will be given an acknowledgement of receipt and the appraiser will inform you about the minimum time required, the likely completion date and the anticipated costs of the expert opinion.
The costs are 1% of the estimated value, as a minimum, the time involved (hourly rate) plus processing charges and VAT. For detailed information on our fees, please contact our experts.
They will be happy to inform you about the minimum time required when taking receipt of your items. If the item(s) is/are sold by the Dorotheum, the fee will be refunded on a proportionate basis. Experience shows us that items sell for a much better price with an expert opinion/certificate.
There are many situations in which it is advantageous to have an expert valuation prepared, including:
If it is found that the fee is disproportionate to the value of the item, the appraiser will inform you.
Verbal valuations (estimates) are another option and these are also charged on a time basis.
6 buying and selling tips:
Retail replacement value
This trade level indicates the market value of an item of jewellery or a precious stone that a consumer would have to pay in a normal, specialist store in a good location, including VAT at 20%. Price discounts cannot be taken into account when calculating the replacement value, as they differ from one store to the next and, in the case of an insurance claim, it must be possible to replace the item without a price discount.
Fair market value (purchase and sale) between private individuals
This trade level is used when a piece of jewellery or precious stone is bought or sold privately. This is calculated at a significant discount compared to the retail replacement value, as a private individual does not have to pay VAT on such a sale, nor does a private individual incur the other costs of a retail business.
This value is used when a piece of jewellery or gemstone is sold by a private individual to a commercial reseller (e.g. jeweller, antiques dealer). It must be borne in mind with this value that the reseller pays immediately and therefore assumes the storage risk. Because of these drawbacks, for this trade level a significant discount is calculated on the retail replacement value.
The international standards for the criteria that determine the quality of diamonds are known as the 4 Cs: these 4 Cs stand for Carat, Clarity, Colour and Cut and can be determined by our Jewellery Laboratory.
At the Dorotheum, however, there is an equally important, fifth C: this stands for Confidence.
In Austria, a piece of jewellery must bear two hallmarks: one indicating the grade and one indicating responsibility (e.g. of the jeweller/goldsmith), although there are exceptions to this. The grade hallmark indicates the quality of a precious metal alloy.
The grade is a ratio indicating how much precious metal is contained in thousandths of an alloy, e.g. for gold: 585 = 14 Carat, 750 = 18 Carat
This is regulated by law in Austria
Do you want to know how much your piece of
jewellery or gemstone is worth? Do you need an expert opinion or a certificate?
The specialists in our Jewellery Laboratory are there to assist you!
The Dorotheum offers one of the best-equipped, state-of-the-art gemmological laboratories in the world. Highly skilled experts and technical expertise assure you of constant quality control to international standards.
The quality of our expert opinions and certificates is backed up by the state recognition awarded by the Federal Ministry of Science, Research and the Economy.
Do you want to know how much your piece of
jewellery is worth in the current market? Or whether the stones are genuine? Do
you want to buy or sell, have jewellery you bought in a holiday destination
checked or submit items for auction? If so, an expert opinion or a certificate
is the ideal decision-making aid.
Expert opinions are needed as proof in
insurance claims, in court or customs proceedings, as security for loans, when
making donations and in inheritance matters and many other situations.
Because we work with international gemmological laboratories, national and international diamond experts and gemmologists, the Federal Gemmological Institute at the Museum of Natural History, and the Institute of Mineralogy and Crystallography at the University of Vienna, we are able to produce analyses of superior quality.