Sunday, September 24, 2017

Conference 2017 Speakers


DemantoidAsbestos-8mm-076-062-061--19-best-best 640x614 2

October 20-22, 2017
The National Club
303 Bay Street

Toronto, ON  M5H 2R1
Conference Chairperson: Karen Howard

 
Conference Includes
Friday evening cocktail reception
Full program of speakers, Saturday & Sunday
Continental breakfast and coffee breaks, Saturday & Sunday
Saturday gala dinner and graduation ceremony. 

Conference Program Speakers:

Warren Boyd-Potentate Mining
Odile Civitello-Gemmologue Évaluateur Enr. 
Tammy Cohen-Almod Diamonds Limited Group                                      
Richard Drucker-Gemworld International Inc
Eric Fritz-The Gemmological Association of Great Britain
Alex Grizenko-Lucent Diamonds Inc
Alan Hodgkinson-Scottish Gemmological Association
Jon Phillips-Corona Diamond
Art Samuels -Vivid Diamonds and Jewelery                                        
Chris Smith -American Gemological Laboratories
Brad Wilson-Alpine Gems


Speaker Biographies

WARREN F. BOYD – GEMMOLOGIST/GEOLOGIST
BIOGRAPHICAL SUMMARY 
Warren Boyd

 Experienced market oriented gemmologist & geologist  with  a specialty in rough diamonds and coloured  gemstones. 

  Sessional Lecturer at the University of Toronto -  lecturing  on the discovery, assessment and evaluation of diamond and coloured gemstone deposits around the world.

     Director of Marketing for Potentate Mining LLC North America’s largest sapphire producer based in Montana.  The Rock Creek Sapphire mine produces a magnificent variety of fine pastel coloured sapphires of all sizes from 0.25 carat to 60 carats.

    Founding director Algonquian Diamond Counsellors International (ADCi) a rough diamond valuation and consulting firm formed as a partnership between R. T. Boyd Limited on Ontario & Diamond Counsellors International (DCi) from London.  ADCi currently holds one government diamond valuation contract in Canada.
       ADCi's mandate is to acquire additional government and industry diamond valuation contracts in Canada and elsewhere. DCi currently hold 4 African Government Diamond Valuation contracts.
    Board of Directors and formerly the Ambassador to Canada for International Colored Gemstone Association.
   Formerly a Director of Cancana Resources Corp (TSXV:CNY) a public company that was exploring for manganese, gold, and diamond deposits in Brazil.

     Currently involved in the assessment and public listing of other gemstone related projects around the world.
     President of R. T. Boyd Limited a privately owned company marketing coloured gemstones and diamonds in North America since 1956.

      Past President of the Canadian Gemmological Association during the time of the development of the Canadian Gemmology courses in the 1980s.


Odile Cilvitello  
MA PHOTO
Odile Civitello is a graduate from the Gemological Institute of America (GIA), from the British Gemmological Association (Gem-A), and from the Canadian Gemmological Association (CGA). She is also a Certified Appraisal Professional from the Canadian Jewellers Association.

In 1993, she opens an office where she offers gem and jewellery appraisal services. In 1995 she founds the Montreal School of Gemmology (EGM), an education institution now internationally recognized. Her experience and dedication for teaching make it possible for her to initiate courses at all levels and fields of specialization (foundation courses in gemmology, preparatory courses for the Gem-A exams, practical workshops, courses for rough diamond grading, coloured stones grading and jewellery appraisal). While at school, she also organized study trips to Myanmar, Sri Lanka, Brazil and Tanzania.
After twenty years with the Montreal School of Gemmology, she now offers exclusively appraisal, gemmological and consultation services, gemmology remaining a never ending passion.  


Tammy Cohen
Tammy Cohen 2016 640x480

Tammy Cohen serves as Director of Crown of Light Education and Marketing.


 She first joined Almod Diamonds Limited Group in 2007 to launch the Pink Desire Collection, an ancillary mid-tier jewelry line for the Pink Panther motion picture franchise, marketed jointly with MGM and Sony Films

By 2013 she rejoined Almod Diamonds Limited Group spearheading a multi–phase Crown of Light Education Initiative and marketing
campaign; broadening brand awareness and liaising with the trade and consumers for all Crown of Light products along with the development of Crown of Light brand strategy.

Prior to Almod Diamonds, Ms. Cohen opened Tammy Cohen Marketing & Consulting; lauded for 
its results oriented and affordable corporate marketing strategies. From 2008 to 2012 Ms. Cohen aligned with various US and global firms to develop traditional and social media marketing campaigns. 
Ms. Cohen earned her MBA from Baruch College in New York City in 1992. She resides in Manhattan with her husband and 3 sons.


 
Richard Drucker

RichardDrucker-2017      Richard Drucker, GG (GIA) is the president of Gemworld  International, Inc. in Glenview, Illinois. His credentials include: Graduate  Gemologist of the Gemological Institute of America; Honorary Fellow of  the Gemmological Association of Great Britain; Senior Member of the  National Association of Jewelry Appraisers; Senior Gemologist,  Accredited Gemologists Association.




As a third generation in the jewelry industry, he began a pricing publication in 1982 now known as the GemGuide. This publication is used in more than 40 countries and is the industry leader in gem pricing and market information. In 2002, he became the owner of GemGuide Appraisal Software. In 2014 he co-developed the World of Color nomenclature and grading system for colored gemstones.

In 2006, Drucker was bestowed the Antonio C. Bonanno Excellence in Gemology industry award. In 2012 he was awarded honorary fellowship in the Gemmological Association of Great Britain (FGA). Drucker now serves as publisher, appraiser, consultant, lecturer, and author. He has hosted four international gemological conferences brining gemologists, jewelers and appraisers together from around the world with a fifth planned for fall 2017.

Eric Fritz
 
  Eric Fritz, FGA, DGA is the manager of North America for Gem-A, the Gemmological
Association of Great Britain, holding both colored Eric Fritzstone and diamond designations.   Eric has a degree in Zoology from the University of North Carolina, Chapel Hill.  The Zoology degree leads to a passion for pearls and other organic gem materials, which are Eric’s specialty.  The studies concentrated on invertebrates which as a review include molluscs; shells and the organisms contained within.  This is the source of pearls as we know them.  As a youth, Eric collected shells on the seashore and noticed at an early age the ability for pearl formation as a free pearl or as a protrusion of the shell, what we now refer to as Mabe or blister pearls.  An obsessive shell collection now resides beside the minerals and gemstones.


   Gem-A is the oldest, over 100 years, and worldwide leader in gemmological training.  As the oldest educational provider, innovation and current trends still guide the emphasis in staying up to date.  Gem-A was also the first gem testing lab in the world, a call to action from differentiation of natural and cultured pearls.  In recent years, Gem-A has made a major commitment in North America.  We offer on line courses with onsite labs convenient to all students.  Our mission is to advance the understanding of ge
mstones through education, membership and the encouragement of best practice.

Alex Grizenko 


AG 2Alex Grizenko, a renowned expert on lab grown diamonds, is the founder and CEO of Lucent Diamonds, Inc. located in Carbon Beach, Malibu, California.

Alex Grizenko studied at McGill University (B.Sc.) and Duke University (M.H.A.), and owned two computer companies before starting an import/sales company in 1990 for semi-precious gemstones and lab grown emerald and alexandrite. His next ventures set the stage to form Lucent Diamonds through extensive partnerships with brilliant physicists and engineers who were the first to create commercially viable gem-quality diamond growers. Alex is credited with offering lab grown diamonds to world markets since 1994.

Over the years Lucent Diamonds has perfected many growing technologies for fancy color diamonds and has pushed the envelope with spectacular lab grown red diamonds and ones grown from carbon extracted from biological sources. Lucent Diamonds now offers a commissioned diamond service to grow diamonds from wedding bouquets for special anniversary gifts. More recently Lucent Diamonds has also focused on HPHT and CVD technology for growing affordable colorless and near-colorless diamonds.  

Alex has been a frequent lecturer for organizations such as the Gemological Institute of America (GIA) and the Accredited Gemologists Association (AGA) on topics ranging from new diamond technologies and identification techniques, disclosure requirements and future trends in lab versus earth mined diamonds. He has been featured on programs such as: PBS-NOVA (The Diamond Deception); BBCScience & Nature - Horizon (The Diamond Makers, The Diamond Labs), ZDF-Germany- Science (Laboratory Diamonds)
 
   



GoldsmithsDadAddress   Alan Hodgkinson
  President of the Scottish Gemmological Association, Freeman of the      Worshipful Company of Goldsmiths, Honorary Member of the Canadian  Gemmological Association, Honorary Registered Valuer.
 
 Lifetime awards by AGA, AGTA, Gem-A and SGA, Author of Visual Optics,   Author of Gem Testing Techniques and Originator of the synthetic emerald filter and the stained green jadeite filter.







Jon C. Phillips GG (GIA), CG (AGS)   JONP PIC 500x500

Jon has been in the jewellery business for over 35 years and worked in all of its “facets”. He is currently the Divisional Manager for Canadian Diamonds at Corona Jewellery Company Ltd. in Toronto, Canada. Part of Jon’s responsibilities includes managing the rough to polish systems for Canadian Diamonds including purchasing of the rough directly from mining companies to working with diamond polishing factories to produce the final product.

Jon is also the lead instructor for Corona and travels worldwide to promote Canadian diamonds and gold. He is Corona’s first contact for anti-money laundering (AML) and Responsible Jewellery Council (RJC) compliances.

He has worked for BHP Billiton Diamonds as a Marketing Manager in both Vancouver and Antwerp and as a service Manager for Birks in Vancouver. Jon and his wife Carol ran their own custom jewellery business in Vancouver for fifteen years which is where Jon obtained his training as a journeyman goldsmith.

Jon is a Certified Gemologist (CG) from the American Gem Society (AGS) and a Graduate Gemologist (GG) from the Gemological Institute of America (GIA).

Jon also currently sits as the chairman of the Accreditation and Certification committee of the Responsible Jewellery Council (RJC) and is a past member of the Standards Committee.  Jon is a member of the GIA Alumni Advisory Council and past vice-president of the diamond commission for CIBJO. He currently sits on the boards of the Canadian Jewellers Association (CJA) and Canadian Diamond Code of Conduct Committee (CDCC).


Art-SamuelsArt Samuels
Art enlisted in the U.S. Navy, became an expert in anti-submarine warfare and after 24 years of service, retired as a Commander. Art founded and is a partner in a high-end six-store retail jewellery chain. He also founded and is president of two wholesales gem and jewellery companies (Vivid Diamonds & Jewelry and EstateBuyers.com).

Art is active as a top gemmologist, and an active buyer and seller of estate gems and jewellery. He is a Senior Member and on the Board of the Accredited Gemologists Association (AGA), and the Diamond Bourse of the Southeastern United States.

Chris Smith

    Christopher P Smith5
             Chris Smith is a 30 year veteran of the gem and jewelry industry with a distinguished international career. He began his interest in gemology in 1986, when he joined the GIA Laboratory, then in Los Angeles, CA, after graduating from their graduate gemologist and graduate jeweler's programs. Although initially a diamond grader, he quickly transitioned into the Gem Identification department where he worked with such notable gemologists as Shane McClure, Robert E. Kane, Chuck Fryer, Emmanuel Fritsch, and many others.

He also pioneered research into several areas of gemology, including the further development and refinement of country-of-origin criteria for rubies, sapphires, emeralds, alexandrites, spinel and other gemstones. This innovative work included the characterization of ruby and sapphire from a number of newly discovered deposits, such as rubies and sapphires from Mong Hsu, Nepal, Tajikistan, and Vietnam, as well as other localities.

In 2003, Chris returned to the GIA Laboratory, this time in New York. As the Director of Identification Services, he was involved with the development of colored gemstone services and research. In December of 2006, Chris joined the American Gemological Laboratories (AGL) as Vice President and Chief Gemologist to spear-head the growth and development of their colored gemstone services.
In April of 2009, Chris became President and owner of AGL.

Along with his identification and research work, Chris has published and lectured extensively on various gemological topics. In 2016 he was honored with the Excellence in Gemology award by the Indian Diamond and Colored Stone Association (IDCA). In 2012 the Jeweler’s Circular Keystone included Chris in its Power List of the Industry’s 50 most influential people. In 2010 he was awarded an honorary Fellowship (FGA) by the Gemmological Association of Great Britain (Gem-A) for his career-long commitment to the advancement of gemology. In 2009 Chris received the Antonio C. Bonnano award for Excellence in Gemology from the Accredited Gemologists Association (AGA). In 2007, Chris was awarded the Richard T. Liddicoat award by the American Gem Society (AGS). He is a past recipient of the Most Valuable Article Award in Gems & Gemology and has been a member of their technical review board since 1993. He also was a founding member of the Laboratory Manual Harmonization Committee (LMHC) and he is a current member of the board for the British Gemmological Association (Gem-A).



Brad Wilson

Brad’s interest in minerals began at a young age, but fully crystallized (pardon Brad-Wilson-Dec-2016-crop-1600the pun) in 1978 when he accidentally discovered transparent smoky quartz in northern Canada.  Since then, his keen interest in Canadian minerals and gemstones has lead Brad all across Canada prospecting for minerals and rough gemstones.  Brad completed BSc and MSc degrees in geology at Queen’s and Carleton Universities and in 1991, Brad became a Fellow of the Canadian Gemmological Association (FCGmA), and from 2007 to 2012 was the CGA’s vice president.  A faceter of gemstones since 1979, Brad cuts many rare and soft collector stones as well as the more traditional coloured gemstones.  Brad is the Canadian partner of "Coast to Coast Rare Stones International", a company specializing in rare, soft and collector gemstones and he operates “Alpine Gems”, a gem cutting shop and consulting business in Kingston, Ontario. In addition to selling gemstones, Brad works as a gemstone exploration consultant, offering property evaluation and exploration services specifically for gemstones.   He has also written several articles on Canadian gemstones.


 


   



    

Conference 2017 Registration


DemantoidAsbestos-8mm-076-062-061--19-best-best 640x614 2
CGA Conference 2017

October 20-22, 2017
The National Club
303 Bay Street

Toronto, ON  M5H 2R1

Conference Cha
irperson: Karen Howard
 
 Pricing for Conference
 
 
Click link below to register- register early for discount pricing!

 
Click for Registration form 2017


Richard Drucker is offering a free workshop on Friday afternoon for 1 1/2-2 hours -coloured stones 
Alan Hodgkinson is offering a 2 hour workshop on Monday on green stones-$100 payable with your full conference.  
Register for both of thesse workshops with the office.
Almost full, Don't miss out! Register Now!


CGA, AGA, FGA or GIA Alumni Members CGA and VCC Students
Early Bird rate effective until July 1, 2017


  Member  

Feb 1 to


Jul 1 2017

Member

Jul 2 to

Sept 15 2017

Member

Sept 16 to

Oct 20 2017

Non-Member

 Feb 1 to

Jul 1 2017

Non-Member
  
Jul 2 to


Sept 15, 2017

Non-Member 

  Sept 16 to


Oct 20 2017

Full Conference & Graduation
                 
$523.95

$628.95

$733.95

$628.95

$733.95

$838.95

Conference Only (Saturday only)

$204.75

$261.45

$313.95

$261.45

$313.95

$366.45

Conference & Graduation
(Saturday only)
$334.95

$397.95

$460.95

$397.95

$460.95

$523.95

Graduation Only

$156.45

$198.45

$240.45

$198.45

$240.45

$282.45

Sunday Conference Only

$204.75

$261.45

$313.95

$261.45

$313.95

$366.45


Conference Includes
Friday evening cocktail reception
Full program of speakers, Saturday & Sunday
Continental breakfast and coffee breaks, Saturday & Sunday
Saturday gala dinner and graduation ceremony. Please advise of any dietary restrictions.

 

3-Day Schedule
Friday October 20, 2017 5.50pm  Conference Registration and Cocktail Reception
Saturday October 21, 2017 8.00 am Breakfast and Conference Registration
  9.00 am Conference Speaker Program
  4.30 pm  Annual meeting open to all members of good standing
  open after meeting
  6.30 pm-11pm  Gala Dinner,  Graduation Ceremony, Dance 

   
Sunday October 22, 2017 8.45 am Breakfast-Continental 
  9.30 am Conference Speaker Program
                      


Hotel Accomodations:

Suites have been set aside for attendees who require accommodations at One King West Hotel & Residence  for the  Canadian Gemmological Conference 2017.

Conference delegates have until September 20th 2017 to reserve their suites at the following group rate:


October 20-22, 2017:

·         $209 CAD (per night, plus taxes) Tower Deluxe Suites

Attendees can make their reservation by calling the reservations department (toll free) 1-866-470-5464 or sending an email to 
This email address is being protected from spambots. You need JavaScript enabled to view it..

Attendees must quote: Canadian Gemmological or Group Code 171020CANA

Attendees can also make their reservations directly on the website www.onekingwest.com-171020CANA.



 

CGA Gem Conference 2017


DemantoidAsbestos-8mm-076-062-061--19-best-best 640x614 2

October 20-22, 2017
The National Club
303 Bay Street

Toronto, ON  M5H 2R1

Conference Cha
irperson: Karen Howard

 
Conference Includes
Friday evening cocktail reception
Full program of speakers, Saturday & Sunday
Continental breakfast and coffee breaks, Saturday & Sunday
Saturday gala dinner and graduation ceremony. Please advise of any dietary restrictions.


Richard Drucker is offering a free workshop on Friday afternoon  for 1/1/2-2 hours -coloured stone 
Alan Hodgkinson is offering a 2 hour workshop on Monday on green stones- $100 payable with your full conference.
  Register for both of these workshops with the office.
These workshops are almost full.  Don't miss out! Register now to hold your spot.
 
3-Day Schedule
Friday October 20, 2017 5.50pm  Conference Registration and Cocktail Reception
Saturday October 21, 2017 8.00 am Breakfast and Conference Registration
  9.00 am Conference Speaker Program
  4.30 pm  CGA General Meeting-open to members in Good Standing 
  5.30pm -6.30pm Open 
  6.30-11.00 pm  Gala dinner,  Graduation Ceremony, dance

   
Sunday October 22, 2017 8.45 am Breakfast-continental
  9.30 am Conference Speaker Program

Conference Program Speakers
Speakers confirmed to date:

Richard Drucker-Gemworld International Inc
Odile Civitello-Independent
Eric Fritz-The Gemmological Association of Great Britain
Alex Grizenko-Lucent Diamonds Inc
Alan Hodgkinson-Scotland Gem Association
Jon Phillips-Corona Diamonds
Art Samuels -Vivid Diamonds and Jewelery                                        
Chris Smith -American Gemological Laboratories 
Tammy Cohen-
Almod Diamonds Limited Group
Warren Boyd-Potentate Mining
Brad Wilson-Alpine Gems 
                                    

Hotel Accommodations:

Suites have been set aside for attendees who require accommodations at One King West Hotel & Residence  for the  Canadian Gemmological Conference 2017.

Conference delegates have until September 20th 2017 to reserve their suites at the following group rate:


October 20-22, 2017:

·         $209 CAD (per night, plus taxes) Tower Deluxe Suites


Attendees can make their reservation by calling the reservations department (toll free) 1-866-470-5464 or sending an email to This email address is being protected from spambots. You need JavaScript enabled to view it..

Attendees must quote: Canadian Gemmological or Group Code 171020CANA

Attendees can also make their reservations directly on the website www.onekingwest.com-171020CANA.




 Pricing for Conference.
 
 
Click link below to register- register early for discount pricing!

 
Click for Registration form 2017

CGA, AGA, FGA or GIA Alumni Members CGA and VCC Students
Early Bird rate effective until July 1,  2017


  Member  

Feb 1 to


Jul 1 2017

Member

Jul 2 to

Sept 15 2017

Member

Sept 16 to

Oct 20 2017

Non-Member

 Feb 1 to

Jul 1 2017

Non-Member
  
Jul 2 to


Sept 15, 2017

Non-Member 

  Sept 16 to


Oct 20 2017

Full Conference & Graduation
                 
$523.95

$628.95

$733.95

$628.95

$733.95

$838.95

Conference Only (Saturday only)

$204.75

$261.45

$313.95

$261.45

$313.95

$366.45

Conference & Graduation
(Saturday only)
$334.95

$397.95

$460.95

$397.95

$460.95

$523.95

Graduation Only

$156.45

$198.45

$240.45

$198.45

$240.45

$282.45

Sunday Conference Only

$204.75

$261.45

$313.95

$261.45

$313.95

$366.45



Things to do in Toronto while here-click for Toronto tourism

 

Conference 2014

CGA Gem Conference 2014

April 3 - 6, 2014
The National Club
303 Bay Street
Toronto, ON  M5H 2R1

Conference Chairperson: Anita Beardwood
Workshops Coordinator: Karen Howard


The CGA's 2014 conference was a tremendous success, with a lineup of renowned speakers from different segments of the gemmological world, and an outstanding set of hand-on workshops, some offered in Canada for the first time. Conference information is posted here for the historical record.

Conference Includes
Friday evening cocktail reception
Full program of speakers, Saturday & Sunday
Continental breakfast and coffee breaks, Saturday & Sunday
Saturday gala dinner and graduation ceremony. Please advise of any dietary restrictions.
Member price: $395;  Non-Member price: $445; Guest registration for gala dinner & graduation: $95 per guest
Student price: $340 (currently registered CGA, GBC, VCC & CIJT students, plus anyone receiving a CGA preliminary or professional certificate)

Navigation
5-Day Schedule
Conference Speaker Program (download here)
Speaker Biographies
Workshops

5-Day Schedule

Thursday, April 3

 
9:00 am - 1:00 pm

Pearls Practical Workshop
Instructor: Cigdem Lule, GemWorld International
CGA Classroom, 55 Queen St W, LC105
2:00 pm - 5:30 pm Emerald Treatments and Pricing Workshop
Instructor, Cigdem Lule, GemWorld International
CGA Classroom
Friday, April 4

 
9:00 am to
4:00 pm
Corundum Treatments and Pricing Workshop
Instructor: Cigdem Lule, GemWorld International
CGA Classroom     
5:50 pm Conference Registration & Cocktail Reception
Marconi Lounge
Sponsored by Jewelers Mutual
Saturday, April 5
8:00 am     
8:00 am Breakfast & Conference Registration
Main Dining Room
9:00 am Conference speaker program
5:00 pm CGA Annual General Meeting
Open to members in good standing
Marconi Lounge
5:30 pm Cocktail Reception & Hors D'ouvres
Bar Lounge
6:30 pm  Graduation Ceremony
Main Dining Room
7:00 pm Banquet Dinner
Main Dining Room
 Sunday, April 6    8:45 am  Breakfast
Main Dining Room
 9:30 am  Conference speaker program
Monday, April 7  9:00 am - 12:30 pm Diamond Types & Synthetic Diamonds
Instructor: Branko Deljanin
CGA Classroom
1:30 - 5:00 pm Diamond Types & Synthetic Diamonds (repeat)
Instructor: Branko Deljanin
CGA Classroom

 



Conference Program Speakers
Download Speaker Program here.

Date Speaker Topic Affiliation
Saturday 9:00 am -

Dr Cigdem Lule  Archaeogemmological View on Ancient Gem Trade GemWorld International,
Chicago
Branko Deljanin Update on production of CVC-grown
colourless and coloured small diamonds
CGL-GRS Swiss-Canadian
Gemlab, Vancouver
Willow & Quintin
Wight
Gem Travels in Vietnam Editor Emeritus, Canadian Gemmologist, Ottawa
David Sexton  Jewellery Crime in Canada Jewelers Mutual, Toronto
David Ritter Establishing a Web Presence Canadian Jewellers
Association, Toronto
Ryan Taylor Fair Trade Jewellery & Sourcing Materials Fair Trade Jewellery Co
Toronto
Sunday
9:30 am -
Chris Smith Spinel: A once forgotten gem on the rise  American Gemological Laboratories, New York
   Duncan Parker  Jewels in Art: Establishing the Age of Jewels  Dupuis Fine Jewellery Auctioneers
   David Hustler  Arts and Crafts Jewellery Enamel Artists  
  Alex Barcados Developments in the Coloured Gem Market CD Barcados Co Ltd

 

Speaker Biographies

Branko Deljanin, BSc, GG, FGA, DUG

  • expert in the identification of natural, treated and synthetic diamonds and coloured stones.
  • highly skilled in the use of traditional gem-testing instruments along with advanced spretrophotometes in detection of new diamond treatments (irradiation and annealing, HPHT, coatings, combinations of treatments)
  • field experience in Russia, Brazil, Australia and Sri Lanka with rough diamonds, coloured stones, treatments and synthetics

 

Workshops

Location:
CGA Classroom
55 Queen St East, Lower Concourse #105, Toronto, ON  M5C 1R6

Pearls
Instructor: Dr Cigdem Lule, GemWorld International
Thursday, April 3, 9:00 am - 1:00 pm; CGA Member $195/Non-Member $245

Cultured pearls are one of the fastest growing sectors in the gem trade. Many varieties of Chinese freshwater pearls have earned widespread consumer acceptance acreoss the global market. However, the visual similarity of these pearls to the once dominant seawater varieties like Akoya and South Sea pearls has created some challenges for buyers, sellers and appraisal professionals whose responsibility it is to accurately grade and price pearl products for their clients.

 

Emerald Treatments and Pricing
Instructor: Dr Cigdem Lule, GemWorld International
Thursday, April 3, 2:00 pm - 5:30 pm; CGA Member $195/Non-Member $245

Half-day, hands-on program working with treated and natural emerald specimens, with pricing information. Participants will examine emeralds treated by various methods and learn the practical techniques used in the field to recognize them. The degree to which an emerald has been enhanced is one of the major considerations when accurately pricing these popular gems. Tips regarding how to estimate the treatment level are also presented. Value factors such as colour, clarity and transparency are discussed based on the GemGuide pricing system. Emerald specimens have been specifically treated for this program to illustrate the common treatment types and levels of enhancement encountered in the market.

 

Corundum Treatments and Pricing Workshop
Instructor: Dr Cigdem Lule, GemWorld International
Thursday, April 4, 9:00 am -4:00 pm; CGA Member $395/Non-Member $445

The sale of treated corundum has dramatically increased the supply of products sold as ruby and sapphire. Accurately pricing corundum requires the professional gemmologist to distinguish not only between treated and natural, but also between the various treatments encountered in today's global market.

This workshop is designed to reconcile the pricing of rubies and sapphires by specific treatment type. Participants will examine a variety of natural and treated ruby and sapphires, and then be introduced to pricing considerations. This hands-on session is supported by a PowerPoint presentation featuring high quality images of characteristic features that reveal whether stones have been enhanced, and how.

 

Identifying Diamond Types and Synthetic Diamonds with UV Lamp, Microscope and Polariscope
Instructor: Branko Deljanin, BSc, GG, FGA, DUG
Monday, April 7, 9:00 am - 12:30 pm OR 1:30 pm - 5:00 pm; CGA Member $185/Non-Member $195
Includes CPF booklet ($25 value)

The use of treatments based on high-pressure, high-temperature (HPHT) annealing, low pressure annealing, and irradiation wit energetic particles with the aim to alter the colour of diamonds has become increasingly popular in the past 10 years. Diamonds can also be grown in the laboratory (HPHT or CVD) and these synthetic diamonds can be colourless (type IIa), yellow (type Ib) and blue (type IIb).

This lecture and workshop is designed for dealers, gemmologists and appraisers. You will learn to identify different types of diamonds and snthetic diamonds. You will also learn about the relationship between diamond types and possible treatments or synthetic origin, in order to know when to send stones to an advanced lab for further testing.


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