Nearly 42-Carat Blue Diamond Discovered in South Africa
Petra Diamonds unearthed the 41.82-carat, Type IIb blue diamond at the Cullinan Mine.

Petra announced the recovery of the Type IIb diamond on Tuesday but provided few additional details.
The mining company, which recently refinanced and completed a rights issue to help it stay afloat, said it is still analyzing the stone and determining how it should be sold.
More announcements about how the diamond will be marketed will be made in due course, Petra added.
Petra Diamonds operates two diamonds mines in South Africa, Cullinan and Finsch.
The Cullinan Mine has yielded sizable blue diamonds in the past, including a collection of five weighing between 9.61 and 25.75 carats.
All discovered over the course of the same week in September 2020, Petra sold the stones to De Beers Group and Diacore in November 2020 for $40.36 million.
De Beers later incorporated them into an eight-stone collection of fancy intense and fancy vivid blue diamonds that ultimately did not perform well at auction in 2022.
Signs of weakness in the market for fancy color diamonds, which once seemed destined to keep increasing in price, have continued since then.
In November, Christie’s sold the “Mellon Blue,” a 9.51-carat fancy vivid blue, for $25.6 million, $7 million less than the diamond garnered at auction a decade ago.
The Latest

The report delves into trending styles, the most popular jewelry brands by city, and why Belle Époque jewelry could be the next big thing.

Respondents were concerned about the future of the labor market and their income as well as the rising prices of gas and groceries.

The campaign highlights the asymmetrical high jewelry necklace style that the jeweler first created in 1879.

Submit your pieces for a chance to win in this year's competition.

It will explore the life of “The King of Diamonds” and showcase more than 165 creations from the brand.


Two suspects have been arrested in connection with the complex phone scam.

In her first column for National Jeweler, Jennifer Shaheen asks jewelers if they know how to connect with the next generation of consumers.

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

The annual awards cover tuition for an on-site educational course at the Swiss lab, as well as flights and lodging.

The jeweler partnered with the Tennessee resort to honor its 50th anniversary with limited-edition blackberry pendants and earrings.

The third-generation jeweler shared how the North Carolina retailer is celebrating this milestone and the love story that started it all.

The class, led by renowned metalsmith Cynthia Eid, highlighted Argentium silver as an alternative to gold amid high prices.

The show is slated for Oct. 16-19 at the Miami Beach Convention Center.

The “Empresses” capsule uses 19th-century medals depicting Napoleon, Joséphine, and Marie-Louise across five one-of-a-kind pieces.

The retailers at the top of the list offer affordable products and fun, discovery-fueled experiences.

Daniel Bing was formerly the marketing director for the Americas at Vacheron Constantin.

In our Piece of the Week, the designers reimagine the tennis bracelet with green enamel wrapped around a strand of “Desert Diamonds.”

The industry veterans join the podcast to discuss diamond marketing, the FTC Jewelry Guides, and lobbying for lower tariffs.

Founder Vik Westermann said the app is a “starting point” to inspire people to work with appraisers and gem labs, not replace them.

The Verdura brooch, which belonged to the late Virginia Fortune Ryan Ogilvy, was sold to a private collector in Asia.

The five students were awarded a total of $10,000 through the nonprofit’s 2026 “Future of Jewelry Making” scholarship.

Steven Lerche is now beginning his term as the youngest member to become president of The Plumb Club’s elected executive committee.

Murphy will retire at the end of the year and Alexander, currently the company’s president, will take over at the start of 2027.

The jeweler is encouraging customers who own lookalike rings to come into the store and trade them for credit towards an authentic piece.

The new campaign, “You Are The Occasion,” discourages shoppers from saving their fine jewelry for special occasions only.

One is the driver who allegedly crashed a car into a Sacramento jewelry store in April, striking a 71-year-old employee who later died.

In a new column, Peter Smith posits that people actually enjoy putting together IKEA furniture, and the same is true for engagement rings.

























