Chamila Suranga, a gemmology researcher attached to Gemological Institute of Ratnapura inspects a 310 kilograms (683 pounds) heavy natural corundum blue sapphire at a residence where it is kept in Horana, about 41 kilometers (25 miles) south of Colombo, Sri Lanka, Sunday, Dec. 12, 2021. A gem company in Sri Lanka has unveiled the massive gemstone that is certified as a rare and one of the biggest corundums found in the country and plans to offer it to museums and gem collectors. (AP Photo/Eranga Jayawardena)
A gem company in Sri Lanka has unveiled a rare and massive gemstone weighing 683 pounds (310 kilograms) that has been certified as one of the biggest corundums ever found in the country.
Sri Lanka's National Gem and Jewelry Authority says it has done a series of gemological tests on five samples taken from the rock.
“To our knowledge this specimen is indeed a rare specimen and not recorded in the geological literature," read an authentication letter given by the authority to the owners who unveiled the stone on Sunday.
When the outer layer was removed for inspection, the interior showed a silky blue patchy appearance, the letter said, suggesting the stone is a blue sapphire.
Shanka Ruwanditha, a director of the company that currently owns the massive stone, the Gemological Institute of Ratnapura, told The Associated Press on Monday that the owners plan to obtain the services of a local or foreign gem valuer soon to determine the price of the rock.
Sri Lanka and especially its southwestern city of Ratnapura, or the Gem City in the local language, has been known for centuries for mining gems and precious stones.
Allies of Florida Gov. Ron DeSantis and Disney have reached a settlement agreement in a state court fight over how Walt Disney World is developed in the future.
Ahead of the WNBA season and in the midst of March Madness, New York Liberty CEO Keia Clarke discusses the team’s new deal with Barclays and bringing even more attention to women’s sports.
U.S. Nissan head Jérémie Papin joins from the New York International Auto Show to give a preview of what’s to come from the carmaker – including the 2025 Nissan Kicks.
Ed Mitzen, the CEO of Business for Good, explains how and why he’s giving back by funding businesses from marginalized entrepreneurs to push social change.
Dana D’Auria, co-CIO at Envestnet, breaks down how she’s expecting markets to perform as ‘cracks’ from the rate hike cycle slowly filter into the economy.
A large cargo ship lost power and issued a mayday call moments before it struck the Francis Scott Key Bridge early Tuesday, though it was still moving toward the span at a rapid speed.
Candace Mitchell Harris discusses her path from computer scientist to founder of beauty tech tool MYAVANA – and how it uses A.I. to analyze each person’s unique haircare needs.
Michael Harris, NYSE global head of capital markets shares what to expect from IPOs in 2024, including A.I. excitement and why interest rate cuts are always helpful.
