The Swiss government announced the deal, which cuts the tax on Swiss imports by more than half, on social media Friday morning.
20-Carat Blue Diamond Goes for $741K Per Carat
A leading diamond company bought the stone, which is described as an “exceptional” Type IIb diamond.

Johannesburg—Petra Diamonds Ltd. found a buyer for the 20.08-carat blue diamond it unearthed in South Africa earlier this fall.
The diamond miner recovered the stone from the Cullinan Mine in September, and sold it via a tender held at its diamond marketing offices in Johannesburg earlier this month for $14.9 million, or about $741,000 per carat.
Cathy Malins, a Petra spokeswoman, said in the 10 years the company has been operating the mine this is the second highest price per carat achieved for a blue diamond, a “testament to its very high quality.”
The highest was a 29.6-carat blue rough that sold for $25.6 million, or nearly $863,000 per carat. That stone was cut into a 12-carat diamond that sold for $48.5 million in 2015 and was dubbed the “Blue Moon of Josephine.”
Petra said a “leading diamond company” bought the 20.08-carat stone but wishes to remain anonymous.
Petra Chief Executive Richard Duffy said in a press release the result is what the company expected and “confirms the resilience in the value of very high-quality blue diamonds.”
“We look forward to following this exceptional stone’s journey to its polished form.”
Also on Friday, the London-based diamond miner announced it is restructuring in order to better support its operations and speed up implementation of Project 2022, a three-year plan to cut debt.
The mines now report directly to Chief Executive Richard Duffy, and the chief operating officer role has been eliminated.
As a result, current COO Luctor Roode is leaving the company immediately.
Duffy said: “Luctor has been instrumental in leading the operations’ transition to steady state operational performance following a long period of capital investment across our mines and I would like to thank him for his significant contribution to the company over the last eight years.
“He leaves Petra at a time when the Company is delivering solid and consistent production results across the operations and I am certain that he will be successful in his future endeavors. We wish him well.”
The Latest

A buyer paid $4.4 million for the piece, which Napoleon wore on his hat for special occasions and left behind when he fled Waterloo.

Plus, how tariffs and the rising price of gold are affecting its watch and jewelry brands.

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Furmanovich designed the box to hold Mellerio’s “Color Queen,” a high jewelry collection consisting of 10 rings.


Jennifer Hopf, who has been with JCK since 2022, will lead the execution of the long-running jewelry trade show.

Adler’s Jewelry is set to close its two stores as 82-year-old owner Coleman E. Adler II retires.

From educational programs, advocacy, and recent MJSA affiliation, Jewelers of America drives progress that elevates businesses of all sizes.

Founder Jim Tuttle shared how a dedication to craftsmanship and meaningful custom jewelry fueled the retailer’s double-digit growth.

The third-generation jeweler is remembered as a passionate creative with a love of art, traveling and sailboat racing.

JSA and Cook County Crime Stoppers are both offering rewards for information leading to the arrest of the suspect or suspects involved.

A buyer paid $25.6 million for the diamond at Christie’s on Tuesday. In 2014, Sotheby’s sold the same stone for $32.6 million.

Mercedes Gleitze famously wore the watch in her 1927 swim across the English Channel, a pivotal credibility moment for the watchmaker.

GIA is offering next-day services for natural, colorless diamonds submitted to its labs in New York and Carlsbad.

Tiffany & Co., David Yurman, and Pandora have launched holiday campaigns depicting their jewelry as symbols of affection and happiness.

The National Retail Federation is bullish on the holidays, forecasting retail sales to exceed $1 trillion this year.

Late collector Eddy Elzas assembled “The Rainbow Collection,” which is offered as a single lot and estimated to fetch up to $3 million.

At the 2025 World Series, the Los Angeles Dodgers’ Yoshinobu Yamamoto sported a custom necklace made by California retailer Happy Jewelers.

The brand’s seventh location combines Foundrae’s symbolic vocabulary with motifs from Florida’s natural surroundings.

The retailer also shared an update on the impact of tariffs on watch customers.

All proceeds from the G. St x Jewel Boxing raffle will go to City Harvest, which works to end hunger in New York City.

Courtney Cornell is part of the third generation to lead the Rochester, New York-based jeweler.

Former Signet CEO Mark Light will remain president of Shinola until a replacement for Ulrich Wohn is found.

Kindred Lubeck of Artifex has three rings she designed with Anup Jogani in Sotheby’s upcoming Gem Drop sale.

The company focused on marketing in the third quarter and introduced two new charm collections, “Pandora Talisman” and “Pandora Minis.”

The jewelry retailer raised its full-year guidance, with CFO Jeff Kuo describing the company as “very well positioned” for the holidays.

Ahead of the hearing, two industry organizations co-signed an amicus brief urging the court to declare Trump’s tariffs unlawful.



















