Set in a Tiffany & Co. necklace, it sold for $4.2 million, the highest price and price per carat paid for a Paraíba tourmaline at auction.
Blue Nile Announces New CEO
Sean Kell is new to the jewelry industry, having most recently headed a senior living referral service.

New York—Blue Nile has recruited a new CEO.
Sean Kell most recently was CEO at A Place for Mom, the largest senior living referral service in the United States.
He’s served in executive roles at companies including Expedia, Hotels.com and Starbucks, and brings expertise in ecommerce, digital innovation, brand marketing, call center operations and product management, Blue Nile said.
“Blue Nile revolutionized the consumer experience of purchasing diamonds and fine jewelry online,” Kell stated in a news release announcing his hire.
“The opportunity to deepen customer relationships and offer an extraordinary experience when shopping for the most cherished moments in their lives is an honor. I am excited to join the team and amplify our strategic priorities.”
David Humphrey, a managing director at Blue Nile owner Bain Capital Private Equity and a member of the board of directors, added: “As the engagement ring and fine jewelry industries continue to evolve, Sean’s leadership and strategic vision will elevate Blue Nile’s modern approach to becoming our customer’s jeweler for life.
“Sean is a seasoned leader, and we are thrilled to have him as Blue Nile’s next CEO.”
Bain Capital Private Equity and Bow Street LLC purchased the formerly publicly traded company in 2017.
A number of executives have left the e-tailer in the ensuing years, including former CEO Jason Goldberger, who left in January after less than two years at the company and was just named the new CEO of Sur La Table.
Goldberger, previously the head of Target.com, replaced former CEO Harvey Kanter.
Kell takes over for interim CEO Eric Anderson, Bain Capital’s executive vice president.
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