A ring set with “hogback” diamonds, an early stone cut dating to around the 16th century, sold for more than $20,000 at a U.K. auction.
Mahiar Borhanjoo Leaves Venus Jewel for DFL Group
He has been appointed its CEO, effective June 17.

Ramat Gan, Israel—The DFL Group announced it has appointed Mahiar Borhanjoo as its new CEO, effective June 17.
A well-known and respected figure in the diamond industry, Borhanjoo has been the managing director of Venus Jewel International since 2015.
During his time at the India-based polished diamond supplier, Borhanjoo oversaw the transformation of the company’s brand and online platform to provide a better customer experience, including the implementation of the company’s complete mine-to-market tracking system.
Before that, he served as the executive director of sales and sightholder services at the Diamond Trading Company (DTC), the since-rebranded sales arm of the De Beers Group, for six years.
In the role, he led a global team that achieved more than $6 billion in annual revenues. Borhanjoo left De Beers when the sales division moved from London to Gaborone, Botswana.
Borhanjoo joins DFL Group at a time when it is looking to “become a disruptive force in the diamond industry,” it said, by providing financing to multiple diamond manufacturers, as well as knowledge and technical support to make their merchandise available online and then deliver the goods securely to a global client base.
Through UNI.Diamonds, its flagship online diamond trading platform launched in October 2018, the DFL Group wants to create one of the largest and most comprehensive suppliers of polished diamonds to the international market.
“Mahiar is an exceptional business leader who has earned tremendous success throughout his career,” said Gil Melamed, a DFL Group co-founder and board member.
“He has led companies through transformative and progressive change, balancing the age-old legacy of diamonds with cutting-edge technology. His knowledge of the industry and experienced leadership will help drive DFL forward, transforming this business. We are delighted to welcome him into our corporate family as CEO and wish him every success.”
The Latest

The rainbow version of the ring, our Piece of the Week, features angel-cut, octahedral lab-grown sapphires designed to be worn as armor.

The new initiative donates a portion of the proceeds from select charms to charitable causes.

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

The Brooklyn-based jeweler created a limited-edition version of its “Aura” eternity band, set with gemstones in the team’s colors.


Senior Editor Lenore Fedow headed to Savannah to learn more about the 10-year, $10 million partnership between JM and the art school.

Its new capsule jewelry collection features gold-finished stainless steel pieces designed for a maximalist look without a luxury price tag.

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

The week-long event in Geneva is slated for April 2027.

Jewelers are missing out by not offering this one key add-on at the online point of sale, Emmanuel Raheb writes.

The fourth collaborative collection from the retailer and jewelry content creator focuses on gemstone charms and strands of colorful beads.

This year’s AGTA Spectrum & Cutting Edge Awards will feature two new categories.

The collection features traceable alexandrite from Brazil in calibrated sizes that is sorted by grade.

Dhaval Raja has been appointed to the role.

The capsule collection looks to vintage trunk pins that echo the spirit of speed, freedom, and the mythology of the American road trip.

SSEF issued a notice about the potential new source of the sought-after gemstone, citing “credible reports” from trade sources.

As Amazon Prime Day kicks off, Etsy is encouraging shoppers to support small businesses.

Cole Winward is the recipient of 2026 AGA Gemological Scholarship.

Whether they evoked nostalgia, wonder, or laughter, these jewels put a smile on our faces.

Scheduled for April 2027, Basilia will be the first watch and jewelry trade show held in Basel since the collapse of Baselworld in 2020.

Submissions for the milestone 25th annual Gem Awards will be accepted across three categories from now through July 31.

The beloved beagle dons his aviator outfit for the new Engineer Master II Snoopy Flying Ace timepiece.

The recent high jewelry auction, which also featured the sale of a 10-carat blue diamond, was “a celebration of color.”

She wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

The lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.

The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.






















