Daily useful info
During one day's work, many different on-line sources may be useful. Here goes the links that were useful to me! Let me know yours, especially if some of them are specific to your job or country!
First of all, let's start with important data to keep in mind:
1 carat = 0,2 gram
1 gram = 5 carats
Converters
Converter from grams to carat: Metric Conversion
Converter of old currency: here
Metal rates
Metal rate €urope: Coockson-CLAL
Metal rate in Dollar$ : Kitco
Translation
On-line very efficient translator: DeepL Translator
One must however be very careful and always have a native person proofread the document that you have translated with an on-line translator, specifically if it tackles technical subjects (manufacturing, contracts, etc.)
Hallmark research
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Research Jewel : a thorough website created by Vanessa Cron (yearly fee)
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On-line encyclopedia of Silver Marks, Hallmarks & Makers' Mark (free of charge)