Petra Puts 39-Carat Blue Diamond Up for Sale
The stone, which is similar to the rough diamond that produced the “Blue Moon of Josephine,” is expected to sell for upward of $50 million.
Viewings of the 39.34-carat, Type IIb stone will take place throughout June and into early July, including a stop in New York from July 7-9.
Tender bids are scheduled to close on or around Monday, July 12 at 10 a.m. EDT.
In an interview with National Jeweler last week, George Togholian, a gemologist at L.J. West Diamonds, compared the 39.34-carat diamond to another big chunk of blue rough mined at Cullinan in January 2014—the 29-carat stone that became the $48.5 million “Blue Moon of Josephine.”
New York-based Cora International cut that stone, and Togholian, who worked as a gemologist and consultant for the company then, helped with the planning process.
Though he has not seen the 39.34-carat rough diamond in person yet, he said in pictures it looks “very similar” to the rough that produced the Blue Moon, possessing the color and texture specific to blues from Cullinan.
“This is a special tone of blue. It’s not comparable to any other diamond that comes to auction,” Togholian said.
“In my opinion, these are the best of the blues. This is on another level.”
While he declined to share his guess as to the diamond’s sale price, Togholian did note the 39-carat rough probably will deliver about a 40 percent yield—the yield for blues and pinks is generally less than yellow or white diamonds because the material is not as smooth, he noted—which means a polished diamond of about 15 to 16 carats.
That’s 3 to 4 carats larger than the 12.03-carat Blue Moon of Josephine, which still holds the world auction record for highest-grossing gemstone per carat at $4 million.
Joseph Namdar, of Namdar Inc., described the 39.34-carat blue rough as a “very special diamond” that is “thought to be one of the purest blues to ever be mined.”
While noting bidding is unpredictable, he put the rough diamond’s sale price at $55 million to $65 million.
The Cullinan mine has produced a number of famous diamonds, including, of course, the 3,106-carat Cullinan, the rough that produced the 69-carat Taylor-Burton Diamond, and the aforementioned 29-carat blue rough that became the Blue Moon of Josephine.
Anyone interested in scheduling a viewing of the 39.34-carat blue diamond should contact Petra’s Group Head of Sales and Marketing Greg Stephenson at firstname.lastname@example.org or +27 836 379 849.
The former Sterling and Zales employee was known for being firm but fair, a great teacher to her employees, and full of love.
RDI Diamonds CEO Michael Indelicato shares his advice for taking a family business to the next level.
Bob Moeller of R.F. Moeller Jeweler takes over as chair of the trade association’s board.
Senior Editor Ashley Davis points out that J. Lo isn’t the first object of Affleck’s affections to wear Foundrae.
Peter Smith shares additional tips from his new book, which include thoughts on avoiding negative people and using hand gestures.
Create appraisals with the Jewelry Appraisal Solution on the Zing by Jewelers Mutual Group® platform and leverage the expertise of Gemworld.
As the Delta variant spreads rapidly, some retailers are reinstating mask mandates and requiring employees to get vaccinated.