Take a Look at the 228-Carat Diamond Set to Fetch $20-$30M at Auction
Christie’s Geneva will offer “The Rock” at the Magnificent Jewels sale in May.

The auction house will present the aptly titled “The Rock,” a 228.31-carat pear-shaped diamond, seen in the video below.
The GIA has issued a letter that accompanies the stone, stating it is the largest existing D-Z color pear-shaped diamond the institute has ever graded.
The stone is G-color, VS1 clarity. It is expected to sell for between $20 million and $30 million at the Magnificent Jewels sale on May 11.
It’s currently on a world tour prior to the sale, starting in Dubai through March 20, then heading to Taipei, and finally New York City April 29-May 1. It will be on view in Geneva at the Four Seasons Hotel des Bergues May 6-11.
Christies’s International Head of Jewelry Rahul Kadakia said in a statement: “The Rock will join the very best of legendary gemstones which have passed through Christie’s global salerooms since 1766. The market for diamonds is particularly vibrant, and we are confident that this sensational gemstone will capture the attention of collectors across the globe this spring season.”
The Rock beats Christie’s top five largest white diamonds ever sold by quite a bit.
The stone that holds Christie’s auction record for the most expensive colorless diamond is the De Grisogono 163.41-carat diamond offered in 2017. It sold for nearly $34 million, despite some industry controversy over De Grisogono’s leadership. (The company was later accused of being a money laundering front and later filed for bankruptcy.)
The second most expensive white diamond Christie’s has sold was the “Winston Legacy” in 2013. The 101.73-carat diamond earned close to $27 million.
The No. 3 diamond was the 76.02-carat “Archduke of Joseph Diamond” in 2012, which earned $21.5 million, followed by the “La Legende” necklace by Boehmer et Bassenge at No. 4. The 92.15-carat diamond fetched $15 million in 2017.
But the most expensive white diamond to ever sell at any auction house wasn’t the largest; instead, it boasted an incredible provenance.
In 2018, Sotheby’s sold the diamond and pearl pendant that originally belonged to Marie Antoinette in its “Royal Jewels from the Bourbon-Parma Family” auction. It fetched a cool $36 million.
While Christie’s “The Rock” is the largest colorless diamond to appear at auction, the largest fancy color diamond was the 555.55-carat black diamond called “The Enigma.”
It sold this year at Sotheby’s for $4.3 million.
The Latest

The new location in the Design District pays homage to Miami’s Art Deco heritage and its connection to the ocean.

Inflations, tariffs, and politics—including the government shutdown—were among consumers’ top concerns last month.

“Longtime favorite” presenters, as well as first-time speakers, will lead talks and workshops at the annual event in Tucson next year.

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

Silas Smith of Meridian Metalworks won the challenge with his pendant that blends Australian and American landscapes.


Most customers who walk into your store this month have made up their minds. Your job is to validate their choice, Emmanuel Raheb writes.

The collection features characters and motifs from Ukrainian folklore, including an enchanted mirror and a magic egg.

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

MatrixGold 3.11, the newest version of the jewelry design program, offers more flexibility, precision, and creative control.

The pavilion will be part of the 2026 JA New York Spring show, scheduled for March 15 to 17.

Kadet, a 1994 National Jeweler Retailer Hall of Fame inductee, helped grow the family-owned retailer in the Chicago area and beyond.

Billed as the world’s smallest wearable, Lumia Health’s new smart earrings have a health tracker subtly embedded in the back.

Don’t let those with December birthdays feel blue. Help them celebrate their month with blue zircon, turquoise, and tanzanite.

The new pink sapphire version of the piece dances with its wearer in the brand’s “Icons After Dark” holiday campaign.

A choice that’s generated a lot of commentary, Pantone says “Cloud Dancer” marks a fresh start and encourages relaxation and creativity.

The manufacturer’s holiday campaign features a gift guide filled with trending designs and jewelry that can be personalized.

The man was charged with theft, accused of ingesting the necklace while in a jewelry store in Auckland, New Zealand.

The Florida independent expanded its store from 8,000 to 14,000 square feet, fulfilling the vision of its late co-founder, Jim Dunn.

Sponsored by De Beers Group

The classic 5600 series G-Shock has been scaled down to about a tenth of its size, becoming a fully functioning watch ring.

The association’s annual conference and gala will take place Feb. 4, 2026, during the Tucson gem shows.

The January show will include a workshop for jewelry retailers on implementing AI to strengthen their businesses.

Fellow musician Maxx Morando proposed to the star with a chunky, cushion-cut diamond ring designed by Jacquie Aiche.

The retailer, which sells billions in fine jewelry and watches, is suing the Trump administration and U.S. Customs and Border Patrol.

Black Friday is still the most popular shopping day over the five-day holiday weekend, as per the National Retail Federation’s survey.

The historic egg, crafted for Russia's ruling family prior to the revolution, was the star of Christie’s recent auction of works by Fabergé.

The retailer offered more fashion jewelry priced under $1,000, including lab-grown diamond and men’s jewelry.

























