NAJA’s Winter Education Conference Returns to Tucson in 2023
The 59th Ace It event is scheduled for Jan. 29 and 30 at the Tucson Convention Center.

The 59th Ace It Winter Education Conference is scheduled for Sunday, Jan. 29 and Monday, Jan. 30 at the Tucson Convention Center.
The first day will kick off with Richard Hughes of Lotus Gemology speaking on “Jade: China’s Gift to the World,” reviewing the major sources of jade around the world, touching on its identification, and exploring the modern movement in contemporary Chinese jade carving.
Billie Hughes of Lotus Gemology and GIA’s Wim Vertriest will then present “A Canary in the Ruby Mine: Low Temperature Heat Treatment Experiments in Burmese Ruby.”
In it, the two presenters will share the latest information from their current research on low temperature heat treatment. Attendees will also get to see before-and-after photomicrographs, spectroscopy, and fluorescence results that are important in recognizing treated material.
This will be followed by gem cutter Justin Prim giving a session titled “Beauty, Value, and the Power of Gem Cutting,” exploring how to distinguish a well-cut stone from a poorly cut stone and how cutting can affect the gemstone’s final color, which plays a huge role in its final value, among other topics.
Then mineralogist and archaeogemology expert Çiğdem Lüle will speak on “The Evaluation and Interpretation of Gem Carvings,” and independent jewelry appraiser and NAJA Education Chair Deborah Finleon will discuss “Communication, Consulting, and Contracting: 3 Cs That Can Make or Break an Assignment.”
The day will close with a session from Stuller’s Guy Borenstein called “Lab-Grown Diamonds—Screening Challenges.” This presentation will discuss various aspects of screening, the common screening techniques and technologies used for separation, and each technique’s weaknesses, limitations, and blind spots.
The second day will start with the “State of the Industry—Post-COVID” by industry analyst Harold Dupuy from Stuller and follow with GIA’s Aaron Palke presenting “Demantoid Garnet: Gemology, Origin, and Treatment,” to give an overview of sources, methods for origin determination, and discussion of treatments.
Author and researcher Renee Newman will then discuss “Diamond Cuts & Qualities in Jewelry from 1300 until Now.”
This will be followed by Danusia Niklewicz of the HallMark Research Institute diving into hallmarks with “What in the World are These Marks?”
The penultimate session will be Warren Boyd from Potentate Mining updating attendees on the world of Rock Creek Montana sapphires, and finally Samantha Lloyd from Gem-A will close the day with a hands-on session about using the spectroscope.
“We really wanted this program to be extra special. After all, it’s our first in-person conference since January of 2020. In looking at program, I’d say we aimed for the ceiling but hit the stars,” said NAJA Executive Director Gail Brett Levine.
Registration is priced at $425 for NAJA members and $650 for non-members until Jan. 15. It then goes up to $525 for members and $750 for non-members.
For more information about the sessions or ways to register, visit NAJAAppraisers.com.
The Latest

Jewelers who misinterpret the state of the jewelry market risk employing the wrong retail strategy, cautions columnist Sherry Smith.

In her newly expanded role, she will continue to oversee the jewelry category, as well as watches, home, and accessories.

“The Godfather II” watch plays two melodies from the mob film’s score, “The Godfather’s Waltz” and “The Godfather Love Theme.”

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

The Alan Hodgkinson Medal recognizes gemologists who are consistently generous with their time and expertise.


The Swiss watchmaker is changing up its executive leadership team as part of a restructuring.

The “What’s Your Signature?” campaign invites women to think about how they see themselves.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

The big diamond’s sale added to the company’s revenue though the market remains “challenging” overall, particularly for smaller goods.

The Jewelry Symposium will honor two industry veterans with lifetime achievement awards at its upcoming May event.

With their durability, brilliance, and beauty, diamonds are the perfect stone for everyday birthstone jewelry.

The retailer failed to file its annual report on time and said it may issue a going concern warning.

Smith recounts a recent trip to the post office that included an uncomfortable, embarrassing, and public exchange between two employees.

John Cowley, who has more than 30 years of experience, is succeeding Tearle as the lab’s chief financial officer.

Founder Erica Silverglide has designed 35 colorful pieces set with fluorescing gemstones for the brand's first finished jewelry offering.

“Ukrainian Jewelry | Contemporary Jewelry and Art Jewelry from Ukraine” features 33 contemporary Ukrainian designers and studios.

“The Golden Now” campaign celebrates the here and now with the brand’s signature styles and a selection of its new pieces.

Signet confirmed that Caffie, president of Zales and Banter, and Bentzen, who headed Blue Nile, have left the company.

The antique jewelry dealer talks about the importance of including Black Americans in jewelry history and preserving their stories.

Both its mines faced challenges last year, from operational issues to disruptions in the market.

Iconic pieces, like the Mike Todd Diamond Tiara, appear in the superstar’s new music video for her song inspired by the actress.

The luxury retailer, which went Chapter 11 in January, announced Thursday that it has secured $500 million in exit financing.

The NouvelleBox ballroom will feature independent jewelry designers, including Lene Vibe, Wyld Box Jewelry, and Kiaia Limited.

The one-of-a-kind locket, our Piece of the Week, opens to reveal three hidden images to keep close to your heart.

The new facility was also designed to better serve its growing customer base in Canada.

The campaign is a tribute to the year 1893, when Kokichi Mikimoto created the world’s first cultured pearl.

It is the only GIA school to offer the GIA Graduate Gemologist program in Chinese.






























