After 28 years with JCK, the veteran industry journalist is launching his own publication on Substack called The Jewelry Wire.
Enhance Your Expertise with IGI’s In-Person Courses in NYC
This fall, sharpen your skills in jewelry grading, quality control and diamond assessment.

Brought to You By International Gemological Institute (IGI)
If you're looking to sharpen your skills and gain valuable industry knowledge, the International Gemological Institute (IGI) offers a range of in-person courses in the heart of New York City. These expert-led programs are designed to empower both aspiring professionals and seasoned industry veterans, giving you the tools to succeed in jewelry grading, quality control, and diamond assessment.
Here’s a closer look at what IGI has to offer this fall:
Introduction to Jewelry Grading
Two Days, 9am-4pm | $350
This course also provides invaluable experience in navigating different settings and stone types with a 10X loupe in various world conditions. By the end, you’ll have the skills to make precise evaluations and impress clients with your professional insights.
Why Take This Course?
- Learn exclusive IGI grading techniques
- Gain confidence in evaluating jewelry with mounted stones
- Receive a certificate upon completion Learn more and register here.
Jewelry Quality Control Class
Four Hours, 9am-1pm | $250 Upcoming Date: Oct 4
Whether you're a jewelry designer or working in retail, this course will sharpen your eye for detail and give you the confidence to assess items with precision. As with other IGI courses, participants will receive a 10X loupe to practice identifying subtle defects and inconsistencies that can impact the overall quality of a piece.
What You’ll Learn:
- Master critical quality control techniques
- Expertly evaluate jewelry for manufacturing consistency
- Take home a certificate recognizing your QC proficiency Learn more and register here.
Diamond Grading Essentials
Five Mornings, 9am-12:30pm | $450
This five-morning course will equip you with the skills to confidently grade loose diamonds, including natural and lab-grown stones. Participants will spend half of the time in hands-on practice, honing their ability to assess key characteristics like color, clarity, carat weight, polish, and symmetry. You’ll also learn how to interpret grading reports and other gemological documents, making it easier to explain your findings to clients.
Taught primarily with a 10X loupe, this course provides a deep dive into diamond grading essentials, giving you the knowledge and practical skills needed to work with diamonds confidently.
What You’ll Gain:
- Hands-on experience grading loose diamonds
- Understanding of key diamond grading elements
- A certificate to enhance your professional credentials Learn more and register here.
Why Choose IGI?
Spaces are limited, so be sure to reserve your spot today and take the next step in mastering your craft.
The Latest

Wiley said the project will give scientists worldwide access to the American Museum of Natural’s History renowned mineral collection.

The “Flower Puff” collection looks to beaded flower friendship bracelets from childhood, turning the silhouette into nostalgic fine jewelry.

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

Set for April 2, the webinar will discuss how the jewelry industry can address the workforce gap.


The highest-grossing lot was a Tiffany & Co. ring set with a flawless, emerald-cut diamond of 10 carats.

The next three editions of AGTA GemFair Tucson will feature a five-day show that includes Sunday.

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

Former Sotheby’s executive Tom Heap has taken on the London-based role.

The group of women allegedly robbed two Catbird stores and one Gorjana location on the afternoon of March 9.

Movado CEO Efraim Grinberg noted continued strength in the fashion watch and accessible luxury segments in the U.S.

After celebrating 25 years in 2025, the campaign marks a new chapter for the jewelry brand with the message that “Identity Creates Value.”

Couture and Time to Watches announced the watch brands, from big names to independents, attendees will see at the show.

Plus, why Saks Global’s bankruptcy may have given Bloomingdale’s an edge.

The flawless, Type IIa stone is estimated to achieve up to $2.8 million at the auction house’s high jewelry sale in April.

Costume designer Kate Hawley wore three archival Tiffany & Co. brooches, our Pieces of the Week, while accepting her first Oscar.

The jewelry retailer announced changes to its store network and brand portfolio during its fourth-quarter earnings call.

From a weaker labor market to inflation, NRF Chief Economist Mark Mathews gave insight on what retailers can expect this year.

The historic stone, which sold at Elmwood’s in London, is the largest white diamond to be offered on the U.K. market in more than a decade.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach in Las Vegas on May 31.

The model and fashion editor’s gold evening bags were the top lots at the London sale, going for more than $25,000 each.

Fresh off winning the David Yurman Gem Awards Grant, Nelson discusses the ring that launched his career and his plans for the future.

The “stunning” Type IIb stone was found via x-ray technology at its Karowe mine in Botswana.

“The Basics of Jewelry” has been updated to include modern topics and visuals.

Held just before the Oscars, the jewelry industry’s big awards show had its share of standout jewelry, gowns, and acceptance speeches.

The Brazilian mine’s new collection features cabochons in soft, muted shades like silver and lilac.

The Academy Award-winning actress stars in Tiffany & Co.’s latest commercial, which debuted Sunday night during the Oscars.






















