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.
Coronet Breaks Record for Most Diamonds Set on A Watch
Marking the brand’s ninth Guinness World Record, the “Mudan” watch is on display at Baselworld now.

Basel, Switzerland—Coronet was awarded the Guinness World Record for the most diamonds set on a watch, the brand announced Friday.
Its “Mudan” watch, which is currently being showcased at Baselworld, tipped the scale with 15,858 diamonds set in 18-karat gold, amounting to a total of 50.01 carats.
The watch design was inspired by peonies, known as the “king of the flowers” in Chinese culture.
Artist and jewelry designer Reena Ahluwalia’s hyper-realistic diamond painting, which can take hundreds of hours to paint, is featured on the dial.
Ahluawalia, who has also collaborated with Coronet on a new watch collection, said her painting is representative of “the shining nobility that we carry within.”
Coronet has nine Guinness World Record nods to its name, including one it received for “most valuable guitar” in 2015.
Its diamond Gibson guitar, named “Eden of Coronet,” featured 11,441 diamonds, weighing in at 401.15 total carats, set in 1.6 kg (about 56.4 ounces) of 18-karat white gold, bringing its value to around $2 million at the time.
Coronet blinged out a guitar in 2016 as well, breaking the record for the most jewels on a guitar after setting 16,033 Swarovski gemstones, including topaz, citrine, rhodolite and cubic zirconium.
The Fender American Deluxe Jazz Bass was played by The Jackson 5 member Jermaine Jackson at the ceremony.
At the 2018 Baselworld show, the Hong Kong-based brand broke the record at the time for the most diamonds set on a handbag.
Its Coca-Cola bottle-shaped accessory featured 9,888 natural diamonds—8,543 black diamonds and 1,345 colorless diamonds—weighing in at 120 carats.
Baselworld will run from March 21 to March 26.
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.

Dallow will lead the International Colored Gemstone Association, effective July 6.


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.

The three industry leaders bring financial, communications, and legal expertise to the nonprofit’s board of directors.

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.





















