The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.
The astounding ‘Archduke’ diamond
As I’ve noted in this blog before, getting the chance to view some of the world’s most spectacular gemstones in person at Christie’s is and always has been one of my favorite aspects of this job.
On Friday, I took my third trip (not counting my numerous treks to see Elizabeth Taylor’s jewelry earlier this year) uptown to the auction house to see the 76.02-carat, D-internally flawless “Archduke Joseph Diamond,” once owned by Archduke Joseph August of Austria, Palatine of Hungary.
On a previous trip to Christie’s in 2009, I saw the D-flawless 32.01-carat Annenberg Diamond, which went on to astonish at auction, selling for $7.7 million. In April 2010, it was the 39.55-carat Emperor Maximilian Diamond (sold for $1.8 million; this diamond was I color, VS1 clarity), a stone with an interesting place in history, just like the Archduke Diamond.
The diamond originated in India’s famed Golconda mines, the earliest known mines to man, dating to 400 B.C. before being exhausted of supply by 1725.
It likely belonged to an Indian family--perhaps one of the leaders of the Great Mughal Empire that once ruled India and was at the peak of its power in the 1600 and 1700s--before falling into European hands.
The Archduke Joseph passed the diamond down to his son, who sold it to an anonymous buyer. That buyer left it in a safe during World War II where it somehow was overlooked by the Nazis.
Like so many other great diamonds, there are some stretches of the stone’s history that remain a mystery, though it did reappear on the auction scene in 1961 and again in 1993, when Christie’s sold it for $6.5 million--the equivalent of $10.5 million today.
It is this same buyer who brings the stone back to Christie’s in Geneva now, selling what likely will turn out to have been a wise investment. The Archduke Joseph Diamond is expected to garner close to $20 million, meaning it will have tripled--at least--in value over the last 19 years.
(Photo credit: Tony Falcone)
The Latest

This year’s inductees include second-, third-, and fourth-generation jewelers.

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.


Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.

This year, it’s what could happen outside of show hours that worries JSA Executive Vice President Scott Guginsky.

High-end fashion houses know how to emotionally connect with customers online. Retail jewelers should take note, Emmanuel Raheb writes.

The designers are the third cohort of mentees from the show’s Belonging @ Couture mentorship program.

Buying discipline at trade shows starts with clarity about your inventory levels, Smith writes.

The trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.

The Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.

Bring a cool tone to your summer jewelry with these white metal pieces.

The deal closed this week, which means Instore will produce the JA NY show slated to take place this fall.

The company’s jewelry sales were up in Q4 and the fiscal year, with Richemont raising prices in part because of the cost of gold.

The “Bauble” capsule collection of colorful one-of-a-kinds includes our Piece of the Week, the “Bauble” earrings, featuring rose zircon.

The updated catalog has a newly dedicated section for gift wrapping.

Everett covers colored stones’ surging popularity, the mellow return of the “Mellon Blue,” and his “The Devil Wears Prada” doppelgänger.

Fourth-generation CEO Lilly Mullen wants to emphasize experience, connection, and personalized service.

The new award, created in partnership with Henne Jewelers, honors the late designer’s legacy through supporting jewelry education.

The addition of the diamond-producing countries as nation affiliated members broadens the federation’s global representation, WFDB said.

The NYPD is warning elderly New Yorkers to keep their jewelry hidden when walking outside to avoid being a target.

Designer Viviana Langhoff has realized her dream of owning a space for her Chicago jewelry store that looks and feels like her brand.

The sessions will run from Friday, May 29, to Sunday, May 31, with one being a live taping of an episode of Couture’s podcast.

























