Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.
Rio Tinto’s 2.11-Carat Red Is Its Most Valuable Diamond Ever
Optimum Diamonds in New York paid an undisclosed amount for the fancy red stone.

Melbourne, Australia--Earlier this year, Rio Tinto presented the largest red diamond it’s ever recovered from its Argyle mine in Australia.
Now, the miner has announced that the stone is the most valuable diamond in its 33-year tender history.
Optimum Diamonds LLC, a company that specializes in rare, natural fancy color diamonds, bought the 2.11-carat radiant-cut fancy red “Argyle Everglow” for an undisclosed sum. Optimum also won the tender’s fifth lot, the “Argyle Liberte,” a 0.91-carat violet diamond.
Optimum Diamonds’ CEO David Shara commented in a news release, “Optimum Diamonds is delighted to have won the Argyle Everglow. This historic red diamond is one of the diamond world’s rarest treasures and it is a privilege to be able to add it to Optimum’s collection. The Argyle Liberte is a mesmerizing violet diamond that fits perfectly with Optimum’s quest for the truly exceptional in the world of fancy colored diamonds.”
Rio Tinto said that its entire 2017 tender, comprised of 58 pink, red and violet diamonds, earned a record result for the company, proving there is high demand for rare, fancy color diamonds.
Graff Diamonds won the tender’s third lot, a 2.42-carat cushion-cut pink diamond called the “Argyle Avaline,” the largest pink diamond Rio Tinto offered this year.
Graff founder and Chairman Laurence Graff said: “We have always been passionate about pink diamonds; acquiring these incredible miracles of nature is a pleasure and an honor. We will take great care to respect the delicate beauty of Argyle Avaline as we craft a setting for this exquisite and exceptionally rare diamond.”
The Latest

The Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.

The retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.


The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

Sotheby’s has appointed the former Phillips executive as its global head of private sales and retail in its watches division.

A private collection of five Paraíba tourmalines also will be up for sale at Sotheby’s High Jewelry auction in New York, scheduled for June 16.

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

The show started by honoring Mildred Marcano, ended with a tearful Beth Anne Bonanno, and recognized a dozen-plus designers in between.

The miner said demand for higher-quality emeralds is stable, but there is notable caution in the market.

The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.

This year’s inductees include second-, third-, and fourth-generation jewelers.

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.

Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.

The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.

This year, it’s what could happen outside of show hours that worries JSA Executive Vice President Scott Guginsky.

High-end fashion houses know how to emotionally connect with customers online. Retail jewelers should take note, Emmanuel Raheb writes.

The designers are the third cohort of mentees from the show’s Belonging @ Couture mentorship program.

Buying discipline at trade shows starts with clarity about your inventory levels, Smith writes.

The trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.

The Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.

Bring a cool tone to your summer jewelry with these white metal pieces.




























