These earrings by Van Cleef & Arpels, featuring the same design as a pair worn by Princess Grace, are up for auction at Woolley & Wallis.
These Are the Researchers Set To Speak at GIA Symposium
Experts in geology, mineralogy, diamond formation and other related fields will present their findings.

Carlsbad, Calif.—Leading researchers in geology, mineralogy and diamond formation are slated to speak at the Gemological Institute of America’s upcoming symposium.
The International Gemological Symposium, an event the GIA holds every few years, is scheduled for Oct. 7 to 9 at the lab’s headquarters in Carlsbad, California.
It will include presentations from the following.
Saleem Ali, senior fellow at Columbia University’s Center on Sustainable Investment and director of the Gemstones and Sustainable Development Knowledge Hub at the University of Delaware, will discuss “Gemstones and Sustainable Livelihoods: From Mines to Markets.”
Barbara Dutrow, a professor in the department of geology and geophysics at Louisiana State University and a member of the GIA board of governors, will examine “Tourmaline: A Gemstone’s Guide to Geologic Evolution.”
Lee Groat, professor in the department of Earth, Ocean and Atmospheric Sciences at the University of British Columbia and editor of The Canadian Mineralogist, will present “Scientific Study of Colored Gem Deposits and Modern Fingerprinting Methods.”
Andrey Katrusha will present “Growing Ultra-Large Synthetic Diamonds with HPHT Methods.” He is a leading specialist in the field.
D. Graham Pearson, a fellow of the Royal Society of Canada and a professor in the Department of Earth and Atmospheric Sciences at the University of Alberta, will delve into new technologies and techniques in “Modern Advances in the Understanding of Diamond Formation.”
Evan Smith, a research scientist at GIA, will discuss “The Formation of Natural Type IIa & IIb Diamonds.”
Daniel Twitchen, sales director for CVD synthetic diamonds at Element Six, will address “Synthetic CVD Diamonds.”
There also will be various presentations on gemological research focusing on seven themes: colored stones and pearls; diamond geology; diamond identification; gem characterization; general gemology and jewelry; gem localities and gem formation; and new technologies and techniques.
These themes also will be addressed in a poster session featuring more than 60 participants presenting research abstracts on topics such as “The Use of Endangered Species in Jewelry” and “The Impact of Fluorescence on Diamond Marketability.” Attendees of the symposium will be able to interact with the poster presenters during the sessions.
In addition during symposium, professors from the Harvard Business School will lead a session on business concepts and innovations using the case study method employed in all HBS programs.
The GIA event will close with “Futurescape Forum,” a panel featuring industry leaders who will discuss their predictions on the future of the gem and jewelry industry.
The Latest

Two experts share how artificial intelligence tools can help retailers run a more efficient business.

Kentaro Nishimura, who has been with the pearl company since 1997, has been promoted to president and CEO of Mikimoto America.

“America Telling Time: 150 Years of Bulova” explores the storied history of the American watchmaker.


An across-the-board tariff of 10 percent remains in place for all U.S. trading partners, except China.

Brigette Pheloung and Tania Sarin, and their mothers, star in the campaign wearing medallions they co-designed.

Bench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.

LeVian is remembered for her unwavering commitment to her family, community, and helping others.

The retail show is open to the public and will run July 24-27.

Editor-in-Chief Michelle Graff answers questions about how the new taxes levied on countries like India and China will impact the industry.

The new store in the upscale Iguatemi São Paulo mall is the storied brand’s first flagship in Brazil.

The pieces span from the Art Deco period to the 1970s and will go up for auction at the Paris Jewels sale later this month.

The Grammy-winning singer-songwriter, who is set to perform at Coachella this month, also debuted a curated selection from the brand.

The introductions include the Land-Dweller, Rolex’s first new model since 2012, as well as several new dials for its classic timepieces.

Cowlishaw earned a degree in horology after serving in World War II, working at one of the first Zales stores in Tulsa, Oklahoma.

Bonhams will offer the “Kat Florence Lumina” at its May 22 jewelry auction.

In March 2022, the men went into a jewelry store in Beverly Hills and smashed the display cases with sledgehammers and crowbars.

The 51 unique watches from Sotheby’s three-day sale and immersive exhibition all found buyers, with the top lot selling for $229,955.

The company has acquired Australian jewelry insurance provider Jewellers Loop.

Beau Lotto’s immersive presentation will be a blend of neuroscience, art, and entertainment.

A pink topaz Belle Époque pendant-brooch and a Victorian Egyptian Revival choker were also highlights at a recent Anderson & Garland sale.

The event, which will co-locate with the Monterey Bay Jade Festival, will bring education sessions focused on jade to the United States.

The charm is a celebration of springtime as April showers bring May flowers with the piece’s cluster of diamond raindrops.

The National Retail Federation expects retail sales growth to return to pre-pandemic levels as consumers continue to face inflation.

The 4-carat, old mine brilliant-cut diamond engagement ring was co-designed by Willis and New York City-based brand Karina Noel.