The nearly six-month pause of operations at its Kagem emerald mine earlier this year impacted the miner’s first-half results.
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The online auction house’s September sale will feature rough Brazilian emeralds of various qualities.

Graduated stones make for elevated tennis-style pieces and dramatic statement necklaces.

He retired last month after 28 years traveling the world to source the very best gemstones for his family’s jewelry business, Oscar Heyman.

Welcome warm summer days with red hot rubies perfectly chosen as July’s birthstone.

The organization has also announced this year’s slate of judges.

The gemstone is the third most valuable ruby to come out of the Montepuez mine, Gemfields said.

The “Royal Ruby” Collection is a quintet of untreated rubies curated by collector Jack Abraham.

The company has joined other labs, including GIA and Lotus Gemology, in adopting the Chinese term for "jadeite jade."

The large stone will be offered at its June sale along with a selection of secondary-type rubies from a new area of the Montepuez mine.

Located in Bangkok, the laboratory is Gemological Science International’s 14th location worldwide.

Those born in June have a myriad of options for their birthstone jewelry.

It was featured in the miner’s latest sale, which brought in $24.8 million.

Recovered in Mozambique, “The Kat Florence Lumina” was part of Bonhams’ Hong Kong jewelry auction held last week.

Get a taste of the delicious candy-like gemstones in this Amanda’s Style File.

From Lau’s “Love of a Kind” series, the engagement ring was inspired by the moon and holds a different meaning depending on how it is worn.

The lab has adjusted the scale it uses for nacre grading.

Sapphires, emeralds, and rubies are finding their place in a U.S. market captivated by the gemstones once referred to as “semi-precious.”

As a nod to the theme of JCK Las Vegas 2025, “Decades,” National Jeweler took a look back at the top 10 jewelry trends of the past 10 years.

The miner announced plans to recommence open-pit mining at Kagem.

Associate Editor Lauren McLemore shares her favorite looks from a night of style inspired by Black dandyism.

Its commercial-quality emerald sale held last month totaled more than $16 million, up from about $11 million in September 2024.

Set with May’s birthstone and featuring an earthworm, this ring is a perfect celebration of spring.

Though currently paused, high tariffs threaten many countries where gemstones are mined. Dealers are taking measures now to prepare.

May babies are lucky indeed, born in a month awash with fresh colors and celebrated with one of the most coveted colored gemstones.