The U.S. Patent and Trademark Office’s appeal board has ruled that the two major claims in Lazare Kaplan’s patent for laser-inscribing diamonds are invalid.

Michelle Graff

The oval-shaped 15.99-carat gemstone topped Christie’s Magnificent Jewels sale, becoming the most expensive colored gemstone ever sold at auction in the U.S.

Brecken Branstrator

The Newark Museum received archival manuscripts from the well-known jewelry manufacturer, creating what it says is the country’s most comprehensive jewelry design archive available to the public.

Brecken Branstrator

This year, a total of six organizations--JA, DEF, DCA, JSA, JVC and JVC Canada--will share JCK’s annual grant, which totals more than $293,000.

Michelle Graff

Jewelry packaging and display company Rocket has hired Christopher Stock as head of the company’s design department and general manager for its West Coast operations.

Michelle Graff

The 9.54-carat fancy deep blue stone that once belonged to “America’s Little Darling” didn’t find a buyer at Sotheby’s New York Tuesday.

Brecken Branstrator

Jewelers of America members now will get exclusive discounts on JewelryStockBalancing.com and are invited to take part in a webinar on moving dated merchandise.

Michelle Graff

The Thailand-based craftsman, who won a total of 19 AGTA Spectrum Awards, died suddenly Thursday at the age of 58.

Brecken Branstrator

The Turkish designer, whose beautiful yellow gold and enamel designs paid homage to the architecture and culture of her homeland, died April 14 after a long battle with illness.

Michelle Graff

The iconic New York jeweler will loosen the reins on its tightly controlled distribution network later this month when it starts selling select pieces from the “Tiffany T” collection on the e-commerce site.

Michelle Graff

In this month’s survey, we asked jewelers about their bridal business. How do your store’s sales of engagement rings and wedding bands compare?

Michelle Graff

In the second part of a two-part column, Peter Smith shares 3 pieces of advice for jewelers along with a list of recommended reading.

Peter Smith

Based on the activity at the April Smart Show, many retailers still are shopping for price-point jewelry, especially when it comes to diamond fashion.

Brecken Branstrator

The jeweler plans to relocate its Irving office to a 1,000-acre live-work-play development but, ultimately, will occupy less office space in the Lone Star State.

Michelle Graff

John Carter of Jack Lewis Jewelers in Bloomington, Ill. was tapped as president-elect, making him next in line to take over after Berg.

Michelle Graff

Simon Golub consultant Seth Pepkin will work with jewelers in five states across the South and Midwest.

Michelle Graff

The retiring CEO of the American Gem Society and AGS Laboratories accepted her organization’s highest honor last week at Conclave.

Michelle Graff

Senior Editor Brecken Branstrator recounts what she learned at an AGS Conclave education session on identifying gemstones presented by Gem-A.

Brecken Branstrator

This week’s Style File features 11 pieces of jewelry worn down the runway at last week’s Jewelers of America Fashion Show held at AGS Conclave.

Amanda Gizzi

They’ve published three new versions of the custom design software, Bridal, Plus and Studio.

Michelle Graff

Here are the top five stories published on NationalJeweler.com for the week of April 10 to 16, according to Google Analytics.

Michelle Graff

The Antwerp World Diamond Centre issued a warning to members to be on the lookout for fraudulent Kimberley Process certificates from Sierra Leone after one surfaced in the Far East.

Michelle Graff

The American Gem Society presented a number of awards at Conclave in Washington, honoring excellence, professionalism and a commitment to ethics and consumer protection.

Brecken Branstrator

The mining company reported Thursday that production hit 38.3 million carats last year, which is a 6 percent increase compared with 2014.

Michelle Graff

This week included the American Gem Society in Washington, D.C. and the announcement that Tiffany will begin selling on Net-a-Porter.

Brecken Branstrator