Piece of the Week: A Gray Diamond Delight from Hemmerle
This 10.67-carat diamond, graded a natural fancy gray by two major labs, was part of Sotheby’s “Magnificent Jewels” sale last week.

One covered the sale of an emerald retrieved from the 1622 wreck of the Nuestra Señora de Atocha and made into a ring for Mitzi Perdue (of Perdue Farms fame), while the other delved into the fate of some of the sale’s top diamonds.
It was a crowded and, well, magnificent field, making it tough to stand out, unless you are a jewel from divine German design house Hemmerle.
Headed by fourth-generation jewelers Christian Hemmerle and wife Yasmin Hemmerle, the brand is considered one of the top contemporary labels among collectors.
A 19-piece, single-owner collection of Hemmerle jewels went up for auction last year at Sotheby’s and sold for a total of $1.4 million, nearly double its pre-sale estimate.
The Hemmerle piece highlighted here features a 10.67-carat emerald-cut gray diamond of SI1 clarity from an “important Detroit collection.”
Mounted in 18-karat gold, the diamond is graded “fancy gray, natural color” by both the Gemological Institute of America and Gübelin Gem Lab.
An anonymous buyer paid $1.1 million ($103,918 per carat) for the piece at Magnificent Jewels, below the pre-sale estimate of $1.5 million-$2 million.
We personally would have paid more, if we had the money.
The Latest

Gomez’s jewelry included Tiffany & Co. drop-style earrings while Blanco stacked diamonds from Jacob & Co. on his wrist.

Diamond industry banking veteran Paul De Wachter will take on the role in January 2026.

Taylor Swift flaunts an Elizabeth Taylor-esque gemstone in promo for her new album, “The Life of a Showgirl.”

Its “Quantre Sand” capsule was made using a 3D sand printing technique borrowed from the automotive and aeronautics industries.


Four individuals have been charged in the “takeover-style” robbery of Heller Jewelers last month, and additional charges are expected.

“Radiance and Reverie” will showcase more than 150 jewels from Lane’s personal collection by Tiffany & Co., Cartier, and more.

With their unmatched services and low fees, reDollar.com is challenging some big names in the online consignment world.

The month’s birthstones, tourmaline and opal, complement the palette of autumn.

Smith shares the importance of looking at your company with openness and honesty to identify opportunities you may be missing.

Associate Editor Natalie Francisco visited Italy to spot jewelry trends at the September Vicenzaoro show and share her top finds.

Respondents were concerned about job availability and rising prices.

Its latest interim financials revealed a challenging first half due in part to production troubles at its mines.

Alexander Lacik has led Pandora since 2019. Berta de Pablos-Barbier will succeed him, the first woman to head the company.

Two men allegedly used counterfeit bills to purchase luxury watches and jewelry from a North Carolina jeweler.

The “Lovestruck” collection, designed with the Academy and Grammy award-winning siblings, is the brand’s first lab-grown diamond offering.

The brand, celebrating its 15th anniversary, has popped up at Market, a luxury fashion destination in Highland Park Village.

She was remembered as a creative and generous woman of faith, who also had a sweet tooth.

Move over neck mess, the ear story is the way to make a layering statement today.

The New York-based brand is set to launch a limited-time offering for the holiday season at Holt Renfrew in Toronto.

The “Volume 7” bridal catalog features best-selling engagement rings, trending styles, and a new section highlighting anniversary bands.

Holiday sales growth is expected to slow as consumers grapple with inflation and tariff-related uncertainty.

Jamie Turner Designs is among the winners of the local “Austin Shines” contest, hosted by Eliza Page, a jewelry store in Austin, Texas.

The red and azure colorway is one of many fun enamel pairings offered, bringing whimsy to the classic style of a monogramed signet ring.

A trade deal with Switzerland seems probable, but reaching an agreement with India remains a challenge, David Bonaparte said.

Botswana’s president said his country wants a controlling share, while Angola envisions multiple countries holding minority stakes.

The manufacturer is adding 1,400 chemical vapor deposition (CVD) reactors to its growing facility in India.