The entrepreneur and “Shark Tank” star will share his top tips for success.
Harry Winston Pays $5.5M for the Rockefeller Emerald
The 18-carat gemstone set a new world record--the highest price per carat for an emerald sold at auction.

New York--Christie’s set a world record Tuesday with its sale of the Rockefeller Emerald, raking in $5.5 million for the ring, the highest price per carat for an emerald ever sold at auction.
Swatch Group-owned Harry Winston purchased the stone at the Magnificent Jewels & Rockefeller Emerald auction in New York for $305,000 per carat.
Chief Financial Officer Robert Scott was charged with bidding for the emerald at the sale, under instructions from CEO Nayla Hayek to “bring this magnificent gem home at any price.”
“Harry Winston is immensely proud to own the finest emerald in the world, which once belonged to one of America’s most important dynasties,” Hayek said after the sale.
The Rockefeller Emerald is not the first major stone snapped up by Harry Winston since being bought by Swatch Group, though it is the first in a few years. In 2013, the same year it was acquired by Swatch Group, Harry Winston paid $26.7 million for a 101.73-carat D flawless diamond that it renamed the “Winston Legacy.”
The 18.04-carat octagonal step-cut emerald, which is set in a platinum and diamond ring designed by Raymond Yard, has been christened the Rockefeller-Winston Emerald. Its $5.5 million sale was at the higher end of its pre-sale estimate of $4-$6 million.
Also at Tuesday’s auction, a 5.01-carat deep grayish-bluish-green diamond (pictured below) topped its pre-sale estimate of $2-$4 million, going for $4.4 million.

Works from an important private collection of Louis Comfort Tiffany and Tiffany & Co., which were once part of the The Garden Museum Collection in Japan, also achieved well over their pre-sale estimates.
For example, a multi-gem pendant circa 1920 by Louis Comfort Tiffany sold for $271,500, eclipsing its pre-sale estimate of $50,000 to $70,000.
All in all, Christie’s Magnificent Jewels & Rockefeller Emerald auction garnered $26.1 million and was sold 83 percent by lot and 89 percent by value.
Christie’s U.S. Head of Jewelry Tom Burstein said: “The historic Rockefeller Emerald and museum-level collections of Louis Comfort Tiffany and Cartier objects formed the core of what was truly a Magnificent Jewels auction.
“The record prices achieved by the Rockefeller Emerald and fancy deep grayish-bluish-green diamond, coupled with competitive bidding for signed jewelry, underscores the strength in the market for pieces of the highest quality. Our jewelry team is proud to finish the first half on such a strong note and we look forward to the fall sales season.”
Scheduled
The Latest

The Ukrainian brand’s new pendant is modeled after a traditional paska, a pastry often baked for Easter in Eastern European cultures.

The jeweler has announced a grand reopening for its recently remodeled location in Peoria, Illinois.

The “Strong Like Mom” campaign features moms who work at Tiffany & Co. and their children.


Interior designer Athena Calderone looked to decor from the 1920s and 1930s when crafting her first fine jewelry collection.

During a call about its full-year results, CEO Efraim Grinberg discussed how the company is approaching the uncertainty surrounding tariffs.

Bench jewelers spend years honing their skills, Jewelers of America’s Certification validates their talents.

The free program provides educational content for jewelry salespeople and enthusiasts to learn or refresh their diamond knowledge.

The feedback will be used to prepare other jewelers for the challenges ahead, the organization said.

The online sessions are designed to teach jewelers to use AI tools like ChatGPT and Claude to grow their business.

The opening marks the jewelry retailer’s first location in the Midwest.

The “United in Love” collection offers tangible mementos of hearts entwined with traditional and non-traditional commitment heirlooms.

Robert Goodman Jewelers will hold a “Black Jewelry Designers and Makers” event on April 27.

The announcements follow a tumultuous start to 2025 for WJA, which saw a wave of resignations following controversial statements about DEI.

Editor-in-Chief Michelle Graff answers questions about how the new taxes levied on countries like India and China will impact the industry.

Kenewendo, Botswana’s minster of minerals and energy, discusses closing the deal with De Beers and the work that was missed along the way.

LVMH CFO Cécile Cabanis also discussed the effects of tariffs so far.

The “Mad Men” and “The Morning Show” star steals jewelry, art, and handbags from his wealthy neighbors in “Your Friends & Neighbors.”

The organization has reelected Kalpesh Jhaveri as president.

An investigation found that the former managing director of Movado’s Dubai branch overstated and prematurely recorded sales.

The collection pays tribute to the Japanese philosophy of Ma, studying balance, stillness, and the interplay between presence and absence.

Mari Lou’s Fine Jewelry in Orland Park, a suburb of Chicago, is closing its doors.

GIA’s labs in Dubai and Hong Kong are now accepting larger diamonds in light of the “logistical challenges” presented by the new tariffs.

Two experts share how artificial intelligence tools can help retailers run a more efficient business.

Kentaro Nishimura, who has been with the pearl company since 1997, has been promoted to president and CEO of Mikimoto America.

“America Telling Time: 150 Years of Bulova” explores the storied history of the American watchmaker.