Its “Quantre Sand” capsule was made using a 3D sand printing technique borrowed from the automotive and aeronautics industries.
12-Carat Marquise Blue Diamond Sells for $16M at Christie’s
The July 9 Magnificent Jewels auction in Hong Kong totaled $39.8 million.

Hong Kong—A 12-carat blue diamond proved there’s still demand for colored diamonds when it went for well above its pre-sale high estimate at auction Thursday.
Christie’s Magnificent Jewels auction in Hong Kong marked one of its first live sales for the house since the onset of the pandemic.
The auction was led by a 12.11-carat internally flawless marquise-cut fancy intense blue diamond, which sold for $15.9 million, compared with its pre-sale estimate of between $8 million and $12 million, after 15 minutes of bidding, according to Christie’s.
Following behind the blue diamond at No. 2 in the auction results was a 19.53-carat Burmese star ruby pendant, with ruby and diamond accents, by Edmond Chin for Etcetera (pictured below).
The piece garnered $2.7 million at auction Thursday, falling within its pre-sale estimate range.
At No. 3 was a 17.95-carat cut-cornered rectangular step-cut diamond ring accented with tapered baguette-cut diamonds, which went for $1.6 million.
Tied at No. 4 was another blue diamond ring, this one a 2.08-carat fancy intense blue marquise brilliant-cut, and a necklace featuring two oval-cut sapphires weighing 12.81 carats and 6.50 carats.
Both of those pieces went for above their pre-sale estimate high when they sold for $1.5 million Thursday.
Rounding out some of the top lots were a 14.70-carat Kashmir sapphire and diamond ring that sold for a little more than $1.3 million; a 6.06-carat Burmese ruby and diamond ring and a pair of jadeite, ruby and diamond earrings, which both went for just under $1.3 million each; and a 10.59-carat diamond ring from Harry Winston for approximately $868,000.
The July 9 Magnificent Jewels auction totaled $39.8 million. For full results, visit Christies.com.
The Latest

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.

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.

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

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.

The jeweler to the stars has worked with Drake, A$AP Rocky, Tyler the Creator, and other celebrities.

The Scarsdale, New York-based jeweler donated a professional-grade watch cleaning machine.

The 50 percent tariffs on diamonds shipped from India to the U.S. have pushed midstream manufacturers to the edge.