The partnership, a pledge to protect Africa’s Okavango River Basin, has been extended for an additional five years.
Raj Pink, Donnersmarck Diamonds Fail to Sell at Auction
They were two of the top lots at Sotheby’s jewelry sale held Wednesday in Geneva.

Geneva--A pink diamond said to be the largest fancy intense pink diamond in the world was one of a few lots that failed to sell at Sotheby’s Wednesday.
At the Magnificent Jewels and Noble Jewels sale in Geneva, neither the “Raj Pink” nor the historic “Donnersmarck Diamonds” sold.
The 37.30-carat Raj Pink was the highlight of the sale, estimated to garner between $20 million and $30 million.
According to Reuters, bidding opened at $10.02 million and rose to about $14.1 million before the auction stalled.
The diamond’s current owner, who has chosen to remain anonymous, gave the stone its name, which is based on the Sanksrit word for “king.”
The rough that yielded the Raj Pink was studied for more than a year after its discovery in 2015, the auction house said, before a master cutter turned it into a cushion-modified brilliant cut.
The Gemological Institute of America has examined the diamond, saying it is an “astonishing stone” with a hue that is a “very bright and ravishing fancy intense pink color.”
Meanwhile, the Donnersmarck Diamonds (pictured below), a 102.54-carat cushion-shaped stone and an 82.47-carat pear, were offered as a single lot. The pair was expected to sell for between $9 million and $14 million, but only reached a bid high of $7.9 million, Reuters said.
The diamonds’ interesting provenance was one of their main selling points.
Countess Henckel von Donnersmarck, or “La Païva” as she eventually became known, was, arguably, the most famous and successful of the 19th century French courtesans, rising to become European aristocracy.
Running away to Paris at the age of 18, she fell in with the right cultural and artistic circles, marrying Marquis Albino Francisco de Araújo de Païva, an heir to two important Macao wholesale fortunes, in 1851.
The two were married for only a day but it gave her the nickname she’d have the rest of her life.
She then met her next husband, Count Guido Henckel von Donnersmarck, one of Europe’s richest men. The two married in 1871, and it is believed that it was during this time that she acquired what came to be known as the Donnersmarck Diamonds.
After she died in 1884, the stones stayed in the count’s family for more than a century until they appeared at auction in 2007. At that time, they garnered $8 million between them.
Sotheby’s did not offer a comment about the lots not
The Magnificent Jewels and Noble Jewels sale totaled $78.9 million.
Its top lot turned out to be a 33.63-carat step-cut fancy light pink diamond set in a Harry Winston ring, which garnered $12.8 million.
The next highest-selling lot jumped down to $5 million for a 18.86-carat ruby ring; $4.1 million for a necklace set with a cushion-shaped fancy intense yellow diamond weighing 102.50 carats, set in a frame of brilliant-cut diamonds with a “fringe” made of pear-shaped diamonds, brilliant-cut diamonds and diamonds of yellow tint; and a $2.6 million 22.76-carat step-cut diamond ring.
Full results can be found on Sothebys.com.
The Latest

The new facility, its first outside of Thailand, will boost its manufacturing capacity by 50 percent.

The special-edition “Dream” pendant, our Piece of the Week, was created to mark Hearts On Fire’s 30-year milestone with 30 diamonds.

Experience gemstones with greater precision and comfort than ever before.

Dubai Jewelers in Springfield, Virginia, was once again the target of an armed robbery.


YouGov’s 2026 U.S. Most Recommended Brands report’s out, and a fast-fashion giant is sitting at No. 1 while Rolex is just shy of the top 5.

Proceeds from its jewelry raffle will benefit an organization working in India to combat silicosis, a lung disease affecting stone cutters.

Submit your pieces for a chance to win in this year's competition.

The rings, crafted by Jason of Beverly Hills, celebrate the hockey team’s Stanley Cup win with design elements that honor its traditions.

This roundup of birthstone jewelry for October features vibrant tourmalines and opals with personality.

President Duma Boko spoke at back-to-back events in the city last week, touting Botswana’s stability and the diamond “bounceback.”

The catalog showcases 112 new, one-of-a-kind pieces amid highlights from the jeweler’s historic archive.

Its Montepuez Ruby Mining operation in Mozambique, which is not yielding enough high-quality rubies, has taken a $125 million hit.

Those surveyed were worried about the present and the future, with write-in responses mentioning high oil and gas prices.

The event will take place on the evening of Oct. 26 in New York City.

She is remembered for her joie de vivre, upbeat personality, genuine interest in other people, and love of the Alabama Crimson Tide.

The founder and executive chairman of Stuller Inc. is being honored for his impact on the jewelry industry at the 25th annual Gem Awards.

December is the most popular month to propose, and jewelers need to keep that in mind when planning their holiday marketing.

“Vibrations” features several firsts for De Beers’ high jewelry, including the use of chalcedony and diamonds sourced from artisanal miners.

The “Bows” collection features three interpretations of the bow motif designed with Georgian and Victorian influences.

The American Gem Society recognized industry members, one Guild, and a law enforcement official for their contributions to jewelry.

Through a new system integration, customers can now receive instant personal jewelry insurance quotes at the time of appraisal.

Five of the 10 fastest-appreciating Rolex models on Bob’s Watches were Datejust 31 or Lady Datejust watches.

The Sherwood family and AJS Creations CEO Tejas Shah purchased the jewelry chain back from Palladium Equity Partners.

“The Elizabeth Taylor Collection” uses lab-grown diamonds and gemstones in contemporary designs inspired by the icon.

The artist wore Dana Rebecca Designs’ marquise diamond-set gold hoops at the Chiefs game last Sunday. Now they’re our Piece of the Week.

JSA and Jewelers Mutual shared advice on spotting suspicious behavior, combatting cell phone jammers, and staying safe at home.

























