From tech platforms to candy companies, here’s how some of the highest-ranking brands earned their spot on the list.

The Challenge of Distinguishing Laboratory-Grown from Natural Diamonds
These occurrences demonstrate the need for fast, reliable ways to identify laboratory-grown diamonds and separate them from natural diamonds throughout the industry.
You deserve to know what you are selling – to protect your customers as well as your business and your reputation.
It is with trade and consumer protection in mind that GIA, the most trusted organization in diamond research and diamond grading, offers innovative diamond detection services and technology, like the GIA iD100®.
GIA iD100®: Your Defense Against False Natural Diamonds
In under two seconds, the GIA iD100® can identify a diamond as natural with 100% accuracy. It is a small, yet powerful desktop instrument that makes diamond testing convenient. Test both loose and mounted diamonds from the convenience of your own store and use it for demonstrations to increase client confidence.
Few other diamond detection machines can match the speed and precision of the GIA iD100®. To protect your business reputation, this speed, accuracy, and convenience are crucial.
With the GIA iD100®, simply point its probe at a stone’s table to receive a result; the probe can be manipulated to reach every diamond in mounted jewelry and can read stones as small as 0.9mm in diameter. Results are easy to read. You don’t need to interpret graphs, colors, reference charts or data to know whether your stone is natural. In just two seconds, you get a simple “Pass” for natural diamonds and “Refer” for stones that need further testing.
In the event that your stone needs further testing, let the experts at GIA tell you the identity of your stone.
For a limited time, GIA will offer a complimentary service to verify GIA reports, confirming that a diamond with a GIA inscription matches the inscribed GIA report number. GIA graded diamonds, with or without an inscription, may be verified via GIA’s Report Confirmation Service.
"Combatting this fraud is vital to protecting the public and ensuring their confidence in gems and jewelry – this is GIA’s mission,” said GIA President and CEO Susan Jacques.
“We, like Tiffany, Cartier and other well-known global companies who are vigilant about protecting their valuable brands from counterfeiting and fraud, will take vigorous action to protect GIA and the trust consumers place in us.”
The Latest

The “Khol” ring, our Piece of the Week, transforms the traditional Indian Khol drum into playful jewelry through hand-carved lapis.

The catalog includes more than 100 styles of stock, pre-printed, and custom tags and labels, as well as bar code technology products.

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

The chocolatier is bringing back its chocolate-inspired locket, offering sets of two to celebrate “perfect pairs.”


The top lot of the year was a 1930s Cartier tiara owned by Nancy, Viscountess Astor, which sold for $1.2 million in London last summer.

Any gemstones on Stuller.com that were sourced by an AGTA vendor member will now bear the association’s logo.

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

The Swiss watchmaker has brought its latest immersive boutique to Atlanta, a city it described as “an epicenter of music and storytelling.”

The new addition will feature finished jewelry created using “consciously sourced” gemstones.

In his new column, Smith advises playing to your successor's strengths and resisting the urge to become a backseat driver.

The index fell to its lowest level since May 2014 amid concerns about the present and the future.

The new store in Aspen, Colorado, takes inspiration from a stately library for its intimate yet elevated interior design.

The brands’ high jewelry collections performed especially well last year despite a challenging environment.

The collection marks the first time GemFair’s artisanal diamonds will be brought directly to consumers.

The initial charts are for blue, teal, and green material, each grouped into three charts categorized as good, fine, and extra fine.

The new tool can assign the appropriate associate based on the client or appointment type and automate personalized text message follow-ups.

Buyers are expected to gravitate toward gemstones that have a little something special, just like last year.

Endiama and Sodiam will contribute money to the marketing of natural diamonds as new members of the Natural Diamond Council.

The retailer operates more than 450 boutiques across 45 states, according to its website.

The new members’ skills span communications, business development, advocacy, and industry leadership.

The jeweler’s 2026 Valentine’s Day campaign, “Celebrating Love Stories Since 1837,” includes a short firm starring actress Adria Arjona.

The new features include interactive flashcards and scenario-based roleplay with AI tools.

Family-owned jewelry and watch retailer Deutsch & Deutsch has stores in El Paso, Laredo, McAllen, and Victoria.

The Italian luxury company purchased the nearly 200-year-old Swiss watch brand from Richemont.

Micro-set with hundreds of diamonds, these snowflake earrings recreate “winter’s most elegant silhouette,” and are our Piece of the Week.

Ella Blum was appointed to the newly created role.























