GIA Offers Colourful Opportunities at Tucson

IMG - PR - Symphony at Tucson 636x358
Photo: Robert Weldon, Gift of Art Sexauer
This miniature turquoise trumpet is one of 21 pieces Art Sexauer commissioned to create "Symphony in Gemstones", an exquisite collection of musical instruments in gem materials and 14K yellow gold.

Institute to host classes; offer lab service, seminars and more

CARLSBAD, Calif. – 8 January 2015 – From a free seminar that explores recent gemmological discoveries and research to an exquisite collection of musical instruments carved from gem materials, GIA’s offerings at the 2015 Tucson shows will enhance the visitor experience. The Institute’s participation at the shows, which also includes a show service laboratory, lab class, two fee-based seminars, library exhibit and the GIA Alumni Association’s annual event, will be at the Tucson Convention Center during the American Gem Trade Association (AGTA) GemFair™, 3-8 February, and the Tucson Gem and Mineral Show, 12-15 February.
More information, including registration, is available on the GIA website at  
GIA’s highlights at the 2015 Tucson shows include:
GIA Museum Exhibit
GIA’s museum exhibit “Symphony in Gemstones” will bring music to the eyes at the Tucson Gem and Mineral Show, 12-15 February. Twenty one pieces commissioned by Art Sexauer, GIA museum benefactor, and hand-carved by master carver Lothar Hermann of Idar-Oberstein, Germany, make up an exquisite collection of musical instruments in gem materials and 14K yellow gold. Featured are tourmaline violins, a Persian turquoise trumpet, lapis saxophone, a tiger’s-eye harp and a black onyx grand piano with a white quartz keyboard and a rose quartz tuba.
GIA Library Exhibit
GIA’s library will feature two of its rarest books at the Tucson Gem and Mineral Show, 12-15 February: James Sowerby’s “British Mineralogy” and Martha Proby’s one-of-a-kind “British Mineralogy after James Sowerby”. A mineral specimen, aragonite, which is featured in both books, will be on view courtesy of The Natural History Museum in London. The case will also include photographs and a map.
GIA Show Service Laboratory at AGTA GemFair
Show attendees will have convenient access to gem identification and country-of-origin services through the GIA Show Service Laboratory. GIA will accept gemstones onsite at the AGTA GemFair in the Onyx Suite Monday to Saturday, 2-7 February from 9 a.m. to 5p.m.; and Sunday 8 February from 9 a.m. to 12 p.m.
Free GIA Seminar
On Friday 6 February from 9 to 10 a.m., GIA’s Distinguished Research Fellow Dr. James Shigley will provide a free seminar on “The Latest News from GIA Research”. This will include an update on the Institute’s latest research on diamonds, coloured stones and other timely topics of interest.
GIA Education
GIA will offer one fee-based lab class and two fee-based seminars during the AGTA GemFair™. Pre-registration is required; call GIA admissions at +1 760 603 4000 ext. 4001 to register for the seminars, and visit GIA’s website to register for the lab.
Diamond Grading Lab Class
Monday to Friday, 2-6 February, 9 a.m. to 5 p.m.
The lab class will teach how to grade diamonds consistently and accurately using a modern gem microscope and a jeweller’s loupe. Participants study GIA’s Diamond Grading System; explore time-saving shortcuts to determine a variety of grading factors; and are introduced to methods for reading a GIA Diamond Grading Report. Participants must pass a two-stone practical test to complete the class successfully.
Identifying Heat Treatment of Corundum
Saturday 7 February, 9 to 11 a.m.
Participants will discover why corundum is heat-treated, and how different forms of heat treatment can alter ruby and sapphire. The seminar, which includes a lecture and hands-on lab component, will teach the identifying characteristics of heated and unheated corundum, and how low-temperature heat treatment and differences in corundum types can lead to complications during the identification process.
Identifying Glass Fillings and "Healed Fissures” in Corundum
Saturday 7 February, 1 to 3 p.m.
High-lead-content glass fillings are currently the most common treatment found in ruby, while "healed fissures" are one of the most misunderstood ruby treatments on the market. In this seminar, comprised of a lecture and a hands-on lab component, students learn the identifying characteristics of these treatments, why they are done and to which types of corundum they are applied.
GIA at the CAD/CAM Pavilion
GIA’s Jewelry Manufacturing Arts programme is at the forefront of jewellery design education, from 3D printer rapid protoyping and casting to prefinishing, setting and buffing. Throughout the AGTA GemFair Tucson, GIA experts will answer questions and discuss a variety of relevant topics, including CAD/CAM, zero-shrinkage from CAD file to photopolymer models to rough castings, jewellery engineering priorities, jewellery design concepts, 3D scanning of gemstones and importing content into CAD files for use in making jewellery and Quality Assurance Benchmarking criteria when CAD modelling. The on-going series will take place in the AGTA CAD Design Studio, stand #450 in the Gem Hall.
Party at the GIA Gem Mine: Rocking Down Under
The GIA Alumni Association will “rock” Tucson during its annual auction, dinner and dance party on Friday 6 February from 6:30 to 11 p.m. at the Marriott University Park Hotel. Ticket prices are $55 (£37) prior to Jan. 15; $65 (£44) after that date and at the door. GIA alumni, students and industry friends can click here to purchase tickets.
For more details about the Institute’s offerings at the AGTA GemFair™, visit GIA’s website.

About GIA

An independent nonprofit organisation, GIA (Gemological Institute of America), established in 1931, is recognised as the world’s foremost authority in gemmology. GIA invented the famous 4Cs of Colour, Clarity, Cut and Carat Weight in the early 1950s and in 1953, created the International Diamond Grading System™ which, today, is recognised by virtually every professional jeweller in the world.
Through research, education, gemmological laboratory services and instrument development, the Institute is dedicated to ensuring the public trust in gems and jewellery by upholding the highest standards of integrity, academics, science and professionalism.