Wiener Edelstein Zentrum | lectures: lectures

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	lectures Pocket Gemmology Unscientific methods of gem identification outside the laboratory Target groups: Goldsmiths, Jewellers, Salespersons, Company Gem Buyers Collectors, Gem lovers and investors Purposes: Introduction and demonstration of methods of gem identification by means of simple and cheap gemmological instruments Contents: Demonstration of the correct handling of the instruments Tweezers Loupe Dichroscope Chelsea Filter Hand Spectroscope Pocket Polariscope The Cardinal Question: Glass or Gemstone? Range of application of the above instruments with practical examples Duration: about 90 minutes Type of lecture: Powerpoint-presentation with demonstration material and practical exercises. Printouts will be made available to all participants free of cost. Due to the limited number of instruments that we can supply the number of participants should not exceed 12 persons. In case of more participants at least some instruments must be provided by the participants or the organizer. Price: € 500 plus VAT and possible costs for accomodation and travel as well as possible rental fees for beamer and screen if these cannot be provided by the organizer. The soft spots of hard stones How to handle sensitive gemstones The lecture explains which precautions have to be taken when working with gemstones and provides answers to questions like: Can I leave this stone in the setting during soldering? Can I leave this stone in the setting during electroplating? Can I clean this stone ultrasonically? Is this stone sensitive to acids or brine? Is this stone particularly brittle and difficult to set? Target groups: Goldsmiths, Jewellers, Gem setters, Salespersons, Company Gem Buyers Purposes: To get to know the weak points of common gemstones To avoid damages caused by improper handling Contens: All major gemstones, from Agate to Zircon, will be discussed. Duration: about 60 minutes Type of lecture: Oral lecture with demonstration material. Printouts will be made available to all participants free of cost. In case of large numbers of participants (congress) the organizers will be charged a contribution to the printing costs. Price: € 250 plus VAT and possible costs for accomodation and travel. Gem Buyers Guide What gem buyers should pay attention to The lecture concentrates on quality grading of coloured gems. It emphasises problems (replacements of gems or expansion of an existing piece of jewellery to a set) arising from the non-availability of certain colours and sizes and presents counter-strategies. Target groups: Goldsmiths, Jewellers, Salespersons, Company Gem Buyers Collectors, Gem and Jewellery lovers Purposes: Communication of quality criteria Communication of market knowledge with emphasis on availability Contens: The 4 Cs of gemstone grading (Cut, Colour, Clarity & Carat) What´s a good cut? Mother Nature is no paintshop – possible and impossible gem colours Do coloured gems have to be loupeclean? A plea for inclusions What money does not buy – about the non-availability of certain sizes About the downsides and dangers of buying in the country of origin Gemstone first or setting first? About the diverse positions of goldsmiths and gem dealers Beware of the bargain! About the loss of image and customers through cheap buys Duration: about 60 minutes Type of lecture: Oral lecture with demonstration material. Printouts will be made available to all participants free of cost. In case of large numbers of participants (congress) the organizers will be charged a contribution to the printing costs. Price: € 250 plus VAT and possible costs for accomodation and travel. Garnet - a monograph A comprehensive account of the complex garnet group Target groups: Goldsmiths, Jewellers, Salespersons Collectors and dedicated gem lovers Purposes: communication of comprehensive knowledge of all garnet species and varieties introduction and demonstration of simple instruments for identification communication of prices and availability on the world markets Contents: History, physical properties and crystallography, modern garnet science, garnet classification, a comprehensive treaty of garnet species and varieties, information about prices and availability, methods and simple instruments for identification Duration: about 75 minutes Type of lecture: Powerpoint-presentation with demonstration material of all kinds of garnets. Printouts will be made available to all participants free of cost. In case of large numbers of participants (congress) the organizers will be charged a contribution to the printing costs. Price: € 250 plus VAT and possible costs for accomodation and travel as well as possible rental fees for beamer and screen if these cannot be provided by the organizer. Beryl - a monograph Emerald, Aquamarine, Golden Beryl, Morganite and other Beryls Target groups: Goldsmiths, Jewellers, Salespersons Collectors and dedicated gem lovers Purposes: communication of comprehensive knowledge of all beryl varieties introduction and demonstration of simple instruments for identification communication of prices and availability on the world markets Contents: History - from 3500 B.C to the 21st centry, mineralogy (physical and optical properties), a comprehensive treaty of all beryl varieties including beryl locations and numerous photos of typical inclusions, information about prices and availability, methods and simple instruments for identification Duration: about 75 minutes Type of lecture: Powerpoint-presentation with demonstration material of various beryl varieties. Printouts will be made available to all participants free of cost. In case of large numbers of participants (congress) the organizers will be charged a contribution to the printing costs. Price: € 250 plus VAT and possible costs for accomodation and travel as well as possible rental fees for beamer and screen if these cannot be provided by the organizer.