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Sotheby’s to Auction World’s Largest Ruby in New York in June

An employee shines a light at the 55.22 carat "The Estrela de Fura" ruby, the largest in the world and expected to fetch up to $30 million in an upcoming New York auction, during a preview at Sotheby's, in Hong Kong, China April 17, 2023. (Reuters)
An employee shines a light at the 55.22 carat "The Estrela de Fura" ruby, the largest in the world and expected to fetch up to $30 million in an upcoming New York auction, during a preview at Sotheby's, in Hong Kong, China April 17, 2023. (Reuters)
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Sotheby’s to Auction World’s Largest Ruby in New York in June

An employee shines a light at the 55.22 carat "The Estrela de Fura" ruby, the largest in the world and expected to fetch up to $30 million in an upcoming New York auction, during a preview at Sotheby's, in Hong Kong, China April 17, 2023. (Reuters)
An employee shines a light at the 55.22 carat "The Estrela de Fura" ruby, the largest in the world and expected to fetch up to $30 million in an upcoming New York auction, during a preview at Sotheby's, in Hong Kong, China April 17, 2023. (Reuters)

The largest ruby in the world to come to auction will be offered by Sotheby's in New York in June, the auction house said at a preview in Hong Kong on Monday, and is estimated to achieve more than $30 million.

That would probably make the 55.22-carat gem, known as the Estrela de Fura, the most expensive ruby ever sold at auction, said Uni Kim, a specialist in Sotheby's jewellery department in the Asian financial capital.

"It is from Mozambique, which is also one of the new and more popular origins that we see for rubies, apart from the more traditional and the classic Burmese pieces," Kim added.

The current world record for a ruby sold at auction was set in May 2015 by "Sunrise Ruby," a 25.59-carat Burmese stone that fetched $30.3 million at Sotheby's in Geneva.

The new stone, whose name means "Star of Fura" in Portuguese, was unearthed from mining company Fura’s ruby mine in Mozambique's northern region of Montepeuz in July 2022.

Kim said the ruby, to be offered at Sotheby's Magnificent Jewels sale, was a 101-carat rough gemstone when first discovered, fueling excitement among many in the gem industry.

The quality and size of the gemstone "is almost unheard of", Dev Shetty, the chief executive of Fura Gems, said in a statement.

"We estimate Estrela de Fura to be sold in excess of $30 million," Kim added. "Hopefully we'll be able to see it just setting a new record for Mozambique rubies."

After being exhibited in Hong Kong, the gem will be displayed in Taipei, China, Singapore, Geneva and Dubai, before being auctioned in New York on June 8.

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Video Shows Dolphin Calf Birth and First Breath at Chicago Zoo

This photo provided by Brookfield Zoo Chicago, bottlenose dolphins "Allie" with "Tapeko" are joined by the newly born calf at the Brookfield Zoo Chicago on Saturday, June 7, 2025. (Brookfield Zoo Chicago via AP)
This photo provided by Brookfield Zoo Chicago, bottlenose dolphins "Allie" with "Tapeko" are joined by the newly born calf at the Brookfield Zoo Chicago on Saturday, June 7, 2025. (Brookfield Zoo Chicago via AP)
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Video Shows Dolphin Calf Birth and First Breath at Chicago Zoo

This photo provided by Brookfield Zoo Chicago, bottlenose dolphins "Allie" with "Tapeko" are joined by the newly born calf at the Brookfield Zoo Chicago on Saturday, June 7, 2025. (Brookfield Zoo Chicago via AP)
This photo provided by Brookfield Zoo Chicago, bottlenose dolphins "Allie" with "Tapeko" are joined by the newly born calf at the Brookfield Zoo Chicago on Saturday, June 7, 2025. (Brookfield Zoo Chicago via AP)

A bottlenose dolphin at a Chicago zoo gave birth to a calf early Saturday morning with the help of a fellow mom, in a successful birth recorded on video by zoo staff.

The dolphin calf was born at Brookfield Zoo Chicago early Saturday morning as a team of veterinarians monitored and cheered on the mom, a 38-year-old bottlenose dolphin named Allie.

“Push, push, push,” one observer can be heard shouting in video released by the zoo Saturday, as Allie swims around the tank, the calf’s little tail fins poking out below her own, The Associated Press reported.

Then the calf wriggles free and instinctively darts to the surface of the pool for its first breath. Also in the tank was an experienced mother dolphin named Tapeko, 43, who stayed close to Allie through her more than one hour of labor.

In the video, she can be seen following the calf as it heads to the surface, and staying with it as it takes that first breath.

It is natural for dolphins to look out for each other during a birth, zoo staff said.
“That’s very common both in free-ranging settings but also in aquaria,” said Brookfield Zoo Chicago Senior Veterinarian Dr. Jennifer Langan in a video statement. “It provides the mom extra protection and a little bit of extra help to help get the calf to the surface to help it breath in those couple minutes where she’s still having really strong contractions.”

In a written statement, zoo officials said early signs indicate that the calf is in good health. They estimate it weighs around 35 pounds (16 kilograms) and stretches nearly four feet in length (115-120 centimeters). That is about the weight and length of an adult golden retriever dog.

The zoo’s Seven Seas exhibit will be closed as the calf bonds with its mother and acclimates with other dolphins in its group.

As part of that bonding, the calf has already learned to slipstream, or draft alongside its mother so that it doesn’t have to work as hard to move. Veterinarians will monitor progress in nursing, swimming and other milestones particularly closely over the next 30 days.