The piece is estimated to sell for more than $20,000.
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It featured watches from the collection of late entrepreneur Glen de Vries.
The stone is expected to fetch up to $2.7 million.
The Bonhams New York sale will feature a Harry Winston diamond ring and several bespoke JAR earrings.
The fancy vivid blue diamond was estimated to sell for as much as $37 million at Sotheby’s Hong Kong.
A rare Chaumet necklace and 20th-century sapphire ring sold for double their estimates.
Reginald Brack has worked at StockX and Christie’s.
The 17.61-carat stone leads Christie’s “Magnificent Jewels” sale in Geneva this November.
Frank Everett curated “For the Boys: A Jewelry Exhibition,” opening in New York City in September.
The single-owner collection features jewels with ties to Austria’s Habsburg dynasty.
Its first sale will feature the watch collection of scientist and entrepreneur Glen de Vries, who flew to space with William Shatner.
The inscribed heart-shaped locket sold for nearly three times its highest pre-sale estimate.
The first sale of jewels from the late heiress’ estate sparked controversy after a report revealed her husband’s Nazi ties.
Inscribed with the words “Baby/heres my heart/Bogie,” the gold heart-shaped locket is estimated to sell for as much as $20,000.
Sotheby’s Hong Kong will offer the 11.28-carat fancy vivid blue diamond at a single-lot sale in October.
The auction house said it’s the largest ever European exhibition of the designer’s work.
Geoff Hess, an avid collector and active member of the watch community, will take on the role.
The natural Burmese stone is the second-most expensive ruby sold at auction in 2023.
The ring sold for over $1 million at Sotheby’s last week.
It more than tripled its $300,000 high-end estimate at Sotheby’s hip-hop sale.
The auction house credited strong 2021 and 2022 jewelry sales for the expansion.
The rapper and actor designed the ruby and diamond piece himself and wore it during his last public appearance in 1996.
It contains locks of hair said to have belonged to King George III and Queen Charlotte.
Stories about new collections, cybercrime, and celebrity style have proved to be the most popular through the first six months of the year.
Queen Charlotte originally commissioned the piece on occasion of the king’s recovery from illness.