Was 2025 a good year for jewelers? Did lab-grown diamonds outsell natural? Find out on the first episode of the “My Next Question” podcast.
The 3.14-Carat ‘Alpha’ Diamond in Rio Tinto’s Tender
It is one of six “hero” stones in this year’s sale of exceptional pink, red and violet diamonds from the Argyle mine.

Sydney—Rio Tinto just debuted the diamonds in this year’s Argyle Pink Diamonds Tender, its annual sale of the best pink, red and violet stones to emerge from its mine in Western Australia.
The 2018 tender comprises 63 diamonds totaling 51.48 carats. It’s bigger than last year’s offering, which had 58 diamonds totaling 49.39 carats and included the largest red diamond in tender history.
This year’s superlatives include the biggest vivid pink diamond in tender history, the 3.14-carat stone dubbed the “Argyle Alpha,” and the weightiest purplish-red, the 2.28-carat “Argyle Muse.”
The diamond mining company described the Muse as having “an unrivaled potency of color,” and noted that the 7.39-carat rough diamond from which it was cut yielded another stone in the 2018 tender, a 0.63-carat purplish-red stone.
The Muse and the Alpha are two of the diamonds selected as “hero stones,” the handful of diamonds Rio Tinto considers to be exceptional and names in each tender.
This year, there are a half-dozen heroes. Here is the complete list:
—Argyle Muse, a 2.28-carat fancy purplish-red oval;
—Argyle Alpha, a 3.14-carat emerald-cut fancy vivid purplish-pink;
—Argyle Maestro, a 1.29-carat square-cut fancy vivid purplish-pink;
—Argyle Alchemy, a 1.57-carat fancy dark gray-violet princess;
—Argyle Odyssey, a 2.08-carat fancy intense pink round brilliant; and
—Argyle Mira, a 1.12-carat fancy red radiant.
Each diamond, along with its name and characteristics, is pictured in the slideshow below.
The diamond mining company, which is based in Perth, Australia, and mines its colored diamonds at the Argyle mine in Western Australia, premiered the collection in Sydney Thursday.
The stones will travel next to Hong Kong in September (coinciding with the jewelry trade show there) and New York in early October, with bids closing Oct. 10.
The Latest

Whether you recognize their jewels or are just discovering them now, these designers’ talent and vision make them ones to watch this year.

Plus, JSA’s Scott Guginsky discusses the need for jewelers to take more precautions as the gold price continues to climb.

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

Morris’ most cherished role was being a mother and grandmother, her family said.


“Vimini” is the first chapter of the “Bulgari Eternal” collection that merges archival pieces with modern creations.

The third edition will be held in Half Moon Bay, California, in April.

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

The grant is in its first year and was created to recognize an exceptional fine jewelry designer whose star is on the rise.

Data built on trust, not tracking, will be key to success going forward, as the era of “borrowed attention” ends, Emmanuel Raheb writes.

Heath Yarges brings two decades of experience to the role.

Pete’s boundless curiosity extended beyond diamond cut and he was always eager to share his knowledge with others, no matter the topic.

Cartier, Van Cleef & Arpels, Buccellati, and Vhernier had another successful holiday season, Richemont reported this week.

Our Piece of the Week is Lagos’ “Bee” brooch that was seen on the red carpet for the first time on Sunday.

Trevor Jonathan Wright led a crew in a string of armed robberies targeting South Asian-owned jewelry stores on the East Coast.

The program recognizes rising professionals in the jewelry industry.

A new lifestyle section and a watch showcase have been added to this year’s event.

Avocados From Mexico is celebrating those who love to double-dip in game day guacamole with a 14-karat yellow gold tortilla chip necklace.

The brand is trading its colorful fabric cords for Italian leather in its “Lasso” baby locket bracelets.

National Jeweler and Jewelers of America’s popular webinar series is evolving in 2026.

The department store chain owes millions to creditors like David Yurman, Roberto Coin, Kering, and LVMH.

The award-winning actor’s visionary approach and creativity echo the spirit of Boucheron, the brand said.

Edge Retail Academy honored Burnell’s Fine Jewelry in Wichita, Kansas, with its annual award for business excellence.

In a market defined by more selective consumers, Sherry Smith shares why execution will be independent jewelers’ key to growth this year.

The family-owned jeweler’s new space is in a former wholesale produce market.

Ivel Sanchez Rivera, 52, has been arrested and charged in connection with the armed robbery of Tio Jewelers in Cape Coral, Florida.

The supplier’s online program allows customers to search and buy calibrated natural and lab-grown diamond melee, including in fancy shapes.























