Presentations

Friday, 3rd May, 2019

6.15 to 7.15p.m

Registration and a welcoming drink to be enjoyed with friends old and new

7.15 - 8.15p.m

John Benjamin - A Brief History of Jewellery: From Elizabeth 1 to Elizabeth Taylor

Four hundred years of international jewellery design from the pomp and pageantry of Renaissance Pearls and Polychrome Enamels to rare and priceless Blue Diamonds sold by Harry Winston.  John’s presentation will highlight many of the key elements of manufacture including the Cheapside Hoard, the development of diamond cutting, Neo Classicism, Romanticism and Naturalism, Archaeological and Renaissance Revivalism, Mass Production and the complex and ever changing development of jewellery design in the 20th Century.

from 8.15p.m   Buffet Dinner

 

Saturday, 4th May, 2019

09.00 - 09.15a.m Welcome

Speakers, sequence to be confirmed

Chris Smith - The clarity enhancement of emeralds - A comparison of Traditional and Modern fillers

The clarity enhancement of emeralds has a long history in the gemstone trade. A wide variety of filling materials have been utilized to reduce the visibility of fissures. This presentation will review the most common types of fillers ranging from various oils, wax (paraffin), natural resins (such as Canada Balsam) and various polymer-type resins. The means to recognize these various fillers will be discussed and also to be addressed are the variables involved with quantifying the degree of clarity enhancement.

Alex Grizenko - The “Coming of Age” of Lab Grown Diamonds

Lab grown diamonds have been around since the early 1950s and the past 6 years have seen a significant increase in production and demand. The United States Federal Trade Commission has recently changed the definition of a diamond to include lab grown diamonds. De Beers has entered the synthesized diamond market with “LightBox” and  large colorless diamonds are created in labs around the world.

Can we always detect lab grown diamonds from natural mined diamonds? What are the gemological techniques and technologies that will maintain a proper balance and disclosure between the two diamond origins? What will the diamond landscape look like as hi-tech merges with luxury goods?

John Andrew -  Maureen Edgar, Scotland’s Great Enameller

 Given a paint box in the form of a crown in 1953 to commemorate the Coronation of that year, Maureen decided she wanted to become an artist, but it was not to be. In her first year she failed her art class at Dundee Art College as it was noticed she occasionally applied paint with her fingers. So in her second year she selected to study silversmithing and discovered enamelling.
She became unwell in 1999 and had to give up work. From 1977-2000 she produced a small but impressive output of work.

Stuart Robertson -  An Update on the Rapidly Changing Coloured Stones Market

Stuart is Vice President of Gemworld International, Inc, a research and consulting firm that monitors relevant developments regarding the worldwide diamond and colored gemstone trade.  Stuart is also the Research Director of the GemGuide, the company’s main publication.

Sylvia Gumpesberger - LED light sources and their uses in gemmological applications

An introduction to LED (Light Emitting Diode) technology and light sources, including an exploration of helpful Gemmological applications.  Advantages and caveats of LED sources over conventional lights will be discussed.

A  related workshop will be offered on Sunday afternoon in which participants can explore and demonstrate these applications.  

Jack Ogden - New Light on some famous diamonds: Loot, Death and Diplomacy

This talk will present new research by the speaker on the history of some famous diamonds: where they were obtained, how they reached Europe from the East and how they were offered for sale. Much can be learned from East India Company and other archives, and from old press and parliamentary reports. There are some curious tales. There is murder and even a brief appearance by a giraffe, while the unravelling of the story of a largely forgotten and supposedly lost diamond has led to its probable identification with one of the largest pink diamonds in the world.

Sunday 5th may, 2019

Chris Smith - ColorCodex, a New Color System

The ColorCodexTM color referencing system is a portable, easy-to-use way for industry professionals to identify the color of precious stones. Each color window is designed to capture the nuance of color seen in faceted gems. Providing an objective, observer-based means to identify and standardize their color. Developed expressly for appraisers, jewelers, gemologists and gem dealers. This easy-to-use tool for industry professionals allows for accurate and repeatable results to establish a gem’s specific color.

Clare Blatherwick - The Nature of Jewels

This talk is an overview of how the natural botanical world has influenced jewellers and designers for hundreds, if not thousands of years in their choice of design and gemstones as well as looking at the hidden meanings ascribed to these pieces.

Sunday - Awards:  Gemmology students and GemSet Competition winners

After the morning's presentations, we will be making awards to Gemmology students and to out Student GemSet Competition winners.  The prize winning pieces will be available to view at this time and through lunchtime, and will be featured on our website.