Supplier BulletinJul 03, 2025
Protect Your Customers and Your BusinessSponsored by the Gemological Institute of America
AuctionsApr 18, 2018
3-Carat Blue Diamond Leads the Way at Christie’s NY
The rectangular-cut fancy intense blue sold for $5.4 million, beating out an 8-carat pink to top the sale.
This platinum ring, set with a 3.09-carat rectangular-cut fancy intense blue diamond flanked on either side by a tapered baguette-cut diamond, went for $5.4 million at Christie’s New York on Tuesday.
New York--A fancy intense blue diamond went for nearly double its pre-sale estimate at Christie’s New York Tuesday, propelling it ahead of the expected top lot of the Magnificent Jewels sale.
The 3.09-carat rectangular-cut fancy intense blue diamond of VS1 clarity is flanked on either side by a tapered baguette-cut diamond and set in platinum. It sold for $5.4 million, well above its pre-sale estimate of $2 million to $3 million.
It also beat out the expected top lot--an 8.42-carat pink diamond ring, which fell within its pre-sale range when it sold for $5 million.
Christie’sMagnificent Jewels auction totaled $45.7 million.
The sale also featured two notable pieces by well-known jeweler JAR.
Born in New York City in 1943, Joel Arthur Rosenthal graduated from Harvard in 1966 before moving to Paris. He worked as a screenwriter and needle stitcher, as well as with Bulgari in New York before moving back to Paris and opening a store on the Place Vendôme with his partner, Pierre Jeannet, for his jewelry creations.
The silver and 18-karat gold JAR “Moghul” pendant brooch pictured above sold for $432,500, going for well above its pre-sale estimate high of $300,000.
The piece was created in 1999 and designed as a stylized bombé architectural turret. It’s pavé-set with circular-cut amethysts surrounding a 14.77-carat cushion-cut sapphire and a border of single-cut diamonds. It also has a single-cut diamond cap suspending a natural pearl tassel and the reverse side is set with pavé diamonds.
It has a detachable chain set with single-cut diamond stations and comes in a JAR pink leather case.
There also was a JAR “thread” ring (pictured above), so named for the perceived lightness of the setting and fine pavé work.
It features an elongated oval brilliant-cut diamond weighing 22.76 carats and of D color and VVS1 clarity, and a diamond-set two-tiered threadwork gallery and hoop mounted in platinum.
It sold within its pre-sale estimate range when it garnered $2.8 million Tuesday.
JAR’s two jewels were sold to benefit the Art for Justice Fund, which connects criminal justice advocates with artists to help reform the criminal justice system in the United States.
Below are a few pieces that joined the JAR thread ring as top lots of the Christie’s New York sale, including the 8-carat pink diamond that came in at No. 2.
This 8.42-carat cut-cornered rectangular modified brilliant-cut fancy intense pink diamond is VVS1 clarity and potentially internally flawless. It is flanked on either side by a tapered baguette-cut diamond and mounted in platinum and rose gold, and sold for $5 million Tuesday.
This crossover twin stone ring from Cartier features a 2.85-carat pear modified brilliant-cut fancy intense pink diamond and a 2.42-carat pear brilliant-cut fancy vivid blue diamond accented with baguette-cut diamonds and a circular-cut diamond gallery in platinum. It went for $4.5 million.
A ring set with a 33.46-carat rectangular-cut E color diamond of VS1 clarity and flanked on either side by a tapered baguette-cut diamond, mounted in platinum, garnered $2.3 million.
More on Auctions
The Latest
MajorsJul 03, 2025
Brilliant Earth Names Tennis Star Madison Keys as Its New AmbassadorThe 2025 Australian Open champion is the jewelry brand’s first athlete ambassador.
MajorsJul 03, 2025
Muse Sets Up Shop in Nordstrom’s New Jewelry HallThe West Village jewelry boutique’s new shop-in-shop is the cornerstone of Nordstrom’s revamped jewelry hall.
Brought to you by
Investing in the Next Generation of Bench JewelersThe Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.
SourcingJul 03, 2025
SRK Announces Its Natural Diamonds Are Now Carbon-NegativeThis past year, the manufacturer said it recorded below-zero emissions per carat of natural diamond.
Weekly QuizJul 02, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
CollectionsJul 03, 2025
Piece of the Week: A Firework of Diamonds From YepremThe brand’s “Golden Strada” statement necklace features round, marquise, and pear diamonds that sparkle like Fourth of July fireworks.
CrimeJul 03, 2025
JSA Shares Holiday Weekend Security Tips Amid Spike in BurglariesJSA’s Scott Guginsky provided a list of nine security measures jewelers should observe while locking up for the long weekend.
Brought to you by
Jewelers of America is Headed to Las Vegas for JCK 2025The countdown is on for the JCK Las Vegas Show and JA is pulling out all the stops.
MajorsJul 02, 2025
Boucheron Looks to LA for First West Coast FlagshipLocated on Rodeo Drive, the store’s design was inspired by Hollywood and Los Angeles culture.
MajorsJul 02, 2025
Marco Bicego Opens Milan FlagshipThe new location continues the brand’s celebration of its 25th anniversary.
WatchesJul 02, 2025
Chrono24 Revamps Brand, Launches New CampaignThe online watch marketplace’s “Time Is Our Thing” campaign highlights the importance of time.
SourcingJul 02, 2025
Bernadette Mack Joins Gem Legacy as Executive DirectorShe will oversee strategic planning, fundraising, industry partnerships, and the launch of the Gem Legacy Campus in Tanzania.
CrimeJul 02, 2025
Pandora, Amazon Partner to Uncover Counterfeit Jewelry NetworkWorking with Amazon’s Counterfeit Crimes Unit and law enforcement, Pandora helped to shut down a large-scale counterfeit network in China.
MajorsJul 01, 2025
Cast Closes Business, Plans for RelaunchThe jewelry company has closed its three California brick-and-mortar stores, as well as its online shop, for now.
Events & AwardsJul 01, 2025
William Goldberg Diamonds, FIT Partner for Apprenticeship ProgramThe company is providing the opportunity for an FIT student to work alongside master diamond cutter Willie Lopez in its workshop.
IndependentsJul 01, 2025
Elie Hannoush, Founder of Hannoush Jewelers, Dies at 73He is remembered for his successful entrepreneurship, generosity, and dedication to his family.
MajorsJul 01, 2025
Claire’s Is Looking for a Buyer, Report SaysThe jewelry store chain has reportedly been struggling with costs related to tariffs as well as tough retail competition.
TrendsJul 01, 2025
Amanda’s Style File: Red Hot RubiesWelcome warm summer days with red hot rubies perfectly chosen as July’s birthstone.
CollectionsJun 30, 2025
State Property’s New Jewelry Tells ‘The Story of Everything’Co-founders Afzal Imram and Lin Ruiyin brought their son’s story of a cosmic egg, toadstool, and railroad to life in their new collection.
ColumnistsJun 30, 2025
The Smart Lab: Why Q3 Is the Secret Weapon For Holiday Jewelry SalesThe best time to prepare for the holiday season is right now, according to columnist Emmanuel Raheb.
Events & AwardsJun 30, 2025
AGA Names Recipient of 2025 Gemological Education ScholarshipThis year’s winner is Morgan Keefe, who is currently studying at GIA to be a gemologist.
IndependentsJun 30, 2025
Melanie Grant’s New Book Explores 200 Years of Jewelry“The Jewelry Book” comes out this September.
TechnologyJun 27, 2025
Gemist Raises $6M in Funding to Scale Jewelry Tech PlatformThe company is focused on modernizing the custom jewelry buying experience with e-commerce tools like product visualization and 3D styling.
IndependentsJun 27, 2025
David Webb Announces New Hires, PromotionsFollowing its recent acquisition, the storied brand has updated its leadership team and regional managers.
Events & AwardsJun 27, 2025
AGS, GIA Announce Beatrice Shipley Scholarship Winner AGS also named the recipient of its “Women in Leadership” scholarship.
CollectionsJun 27, 2025
Piece of the Week: Buddha Mama’s ‘Monstera’ Wrap RingThe 20-karat yellow gold and diamond wrap ring is modeled after the Monstera plants in the garden of the brand’s Miami villa.
MajorsJun 26, 2025
Why Rocksbox Is Opening Stores As Signet Jewelers DownsizesRocksbox President Allison Vigil shared the retailer’s expansion plans, and her thoughts on opening stores in malls.
