The top lot of the auction house’s Hong Kong jewelry sale was an Art Deco Mauboussin necklace with ruby beads, which sold for $2 million.
Gemstone Passports: Colored Stone Origin Determination
Navigate origin determination with Continuing Education seminars offered by the GIA Alumni Collective™.

Brought To You By GIA Alumni Collective
Origin has long been a factor in determining the value of colored stones, but new demands from within the industry and increased interest from consumers have escalated the importance of origin even further. Traceability and the sourcing pipeline are no longer considered add-on factors but are now central to the storytelling aspect of fine jewelry. Accurate, authoritative origin determination is now considered of equal importance to quality factors such as color, size, and shape. The value of high-end colored stones can increase dramatically depending on their origins, making 'country of origin' a critical value factor.
Knowledge of stone origin and how it is evaluated provides essential knowledge for sellers and confidence to buyers. It can also be a connection point for consumers who are demonstrably more interested in the stories behind the finished product. The characteristics of a region – its geology, geography, and even human history – provide a colorful backdrop to each gemstone’s unique origin story. This valuable insight expands not only our understanding of how gemstones formed, but how they travel through the supply chain before ultimately reaching their new home as a cherished memento.
Protect Your Customers with Advanced Science
Continued Education Opportunities with GIA Alumni Collective
Visit collective.gia.edu/continuing-education to explore the seminars.
The Latest

Retailers and manufacturers headed to the Capitol this week to discuss tariff exemptions for diamonds and gemstones, among other issues.

Our Piece of the Week is a pair of drop earrings from the “Sway” collection featuring Nanis’ first use of mirror-polished gold.

Experience gemstones with greater precision and comfort than ever before.

SynthDetect 2 can scan a full tray in less than five minutes, De Beers said, making it six times faster than its predecessors.


Two metal detectorists discovered the ring, which may have belonged to English noblewoman Matilda of Lancaster, in Suffolk.

The bill has a provision that allows the president to raise tariffs on countries that import Russian oil and gas to as much as 100 percent.

Submit your pieces for a chance to win in this year's competition.

The American Gem Society presented the annual award to a former president of its board.

The “Chrysalis” capsule centers butterfly motifs representing growth, transformation, and the unfolding of who you are.

Jewelers of Louisiana presented Patton, the third-generation president of Pattons Fine Jewelry, with the award at its annual convention.

Two special guests join the podcast to commemorate the 10th anniversary of the designer advocate, mentor, and author’s untimely passing.

McCormack brings sea-inspired motifs from her “Beaches” collection to L’Objet’s tableware, vanity pieces, and first-ever cutlery set.

Nine New Jersey jewelers have been victims of smash-and-grab robberies this year, prompting JSA to circulate a list of recommendations.

The new bridal catalog features the latest jewelry collections and designs from timeless classics to modern silhouettes.

Stars wore either a necklace or earrings at 78th Primetime Emmy Awards but rarely both, Natalie Francisco notes.

Jennifer Shaheen compares this new era of AI-powered SEO to a video game: your website must clear one level before advancing to the next.

Hilson, Signet’s chief operating and financial officer, discussed Q2, resurgent natural diamond demand, and why Blue Nile is a standout.

The stores that have a great December are the ones that made good decisions in August, September, and October, Sherry Smith writes.

The 22.09-carat fancy yellow “Pragnell Kimberley Sunshine Diamond” is part of the fall jewelry sale at Heritage Auctions.

“Adornos: Jewelry, Memory & What We Pass Down” honors the jewelry’s importance to New York City’s Latine communities.

The company’s managing director of sales said the results demonstrate “continued strong demand for commercial-quality emeralds.”

The nonprofit awarded a grant to the Gift of Sight initiative spearheaded by South African musician Black Coffee.

The Latine-owned New York jeweler is marking two milestones this year: its 50th anniversary and the 25th anniversary of the 9/11 attacks.

The jewelry retail broadcast network has sponsored a new space for Make-A-Wish East Tennessee on its campus in Knoxville.

The recipients were recognized at the 24 Karat Club of the Southeastern United States’ annual banquet.

Keith Rolfe, CFO and COO of Lagos, is now at the jewelry brand’s helm while Steven takes on the role of executive chairman.























