World Gem Foundation
One-Day Workshops

To reserve your place, simply click on the black buttons to indicate where you would like to take the workshop.

The cost of each workshop is £ 100 (United Kingdom) or € 125 (Holland, Spain, Sweden, France or Germany).

Diamond and Coloured Gemstone Grading

COURSE CONTENT (WGFDCGG)

This one day workshop will give you a thorough understanding of the grading techniques used to assess the quality of both diamonds and coloured gemstones. Topics covered include the 4 C’s (colour, clarity, cut and carat weight), how they are measured and assessed, how to describe the colour of a coloured gemstone, the various colour grading systems currently used by professionals, the clarity classification of coloured gemstones based on their geological environments, and how cut is assessed.

WHO SHOULD TAKE THIS COURSE?

Participants should have some previous jewellery or gemmological knowledge.

DATES

Sweden (April 22nd), Holland (May 8th), United Kingdom (May 14th), Spain (May 19th), France (June 26th)

Sweden Holland United Kingdom Spain France

Rubies, Sapphires and Emeralds

COURSE CONTENT (WGFRSE)

This one-day course covers three of the most important coloured stones; ruby, sapphire and emerald. Topics covered include an overview of their physical and optical properties, principal sources, basic testing methods, how they are produced synthetically, common treatments and enhancements, care guidelines, how they are valued and helpful buying tips.

WHO SHOULD TAKE THIS COURSE?

Participants should have some previous jewellery or gemmological knowledge.

DATES

Spain (June 23rd), Holland (July 3rd), United Kingdom (September 1st), Germany (October 25th)

Spain Holland United Kingdom Germany

Gemstone Enhancements and Treatments

COURSE CONTENT (WGFGET)

This one-day course covers one of the most fluid and challenging areas of gemmology; the enhancement and treatment of gemstones. Topics covered include heat treatment, surface and sub-surface diffusion, lead glass fracture filling, flux assisted partial fissure healing, glass fracture filling, cobalt doped glass filled sapphires, clarity enhanced diamonds, HPHT, quench-crackling, surface modifications, coatings and foil backs, laser drilling, and irradiation.

WHO SHOULD TAKE THIS COURSE?

Participants should have advanced jewellery or gemmological knowledge.

DATES

United Kingdom (September 2nd), Holland (September 11th), Germany (October 26th)

United Kingdom Holland Germany

Birthstones of the Month

COURSE CONTENT (WGFBM)

This fast paced workshop covers the twelve primary ‘Birthstones’ (garnet, amethyst quartz, aquamarine, diamond, emerald, pearl, ruby, peridot, sapphire, opal, topaz and zircon) and gives a general overview of their primary sources, how they are valued, helpful buying tips, how to care for them, common treatments and enhancements and basic testing methods.

WHO SHOULD TAKE THIS COURSE?

This course is an entry level course but will also appeal to jewellers and goldsmiths who would like to know more about the stones they are selling or using in the manufacturing process.

DATES

France (June 27th), Holland (November 6th)

France Holland

WGF TUITION CREDITS

All participants will receive a tuition credit towards the World Gem Foundation's Career Gemmology Theory Course or any of the five component theory courses (Basic Gemmology, Advanced Gemmology, Gem Identification, Diamonds or Coloured Gemstones) equal to the value of the cost of the workshops they enroll in.