From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.
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

Marie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.

At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.

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

It was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.


The approval means the retailer is on track to exit bankruptcy proceedings this summer.

The men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.

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

The bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.

The De Beers Group CEO also discussed tariffs, Desert Diamonds, and the pending sale of De Beers in an interview with Michelle Graff.

The industry veteran is bringing his 56-year run in the fine jewelry sector to an end.

The panel discussion will feature LGBTQ+ leaders across the jewelry, luxury, and creative industries.

Inspired by a locket that got run over, the “Smash” capsule collection reimagines the shape of Lichtenberg’s signature style.

The company has promoted Katherine Whitacre to the role.

The jewelry manufacturer has added Taylor Swift-esque diamond shapes, and more silver, gold vermeil, and gold-plated jewelry.

Morrison has been marketing diamonds on and off since the early 2000s and said she is leaving to “pursue new projects.”

Those born in June can celebrate with pearl, alexandrite, and moonstone jewelry.

The platform allows retailers to guide clients through a customizable engagement ring buying experience in a branded interface.

Jim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.

When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.

The “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.

The jewelry industry is reassessing its positioning as Gen Z reshapes the retail landscape and lab grown continues to gain market share.

Up for auction at Sotheby’s, the collection of Tempelsman’s personal effects includes a Cartier Tank watch Jackie O. gifted him.

The Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.

The organization also announced its international board of directors for the 2026-2027 term.

Saks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.

Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.

























