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.
WSJ reporter Ray Smith breaks down why more companies are offering ‘dry’ promotions – a responsibility or title bump with no pay raise – and the pros and cons of accepting them.
Apple says a Justice Department antitrust lawsuit accusing it of engineering an illegal monopoly in smartphones in the U.S. is “wrong on the facts and the law.”
As Reddit shares begin trading at the NYSE, ‘Einstein of Wall Street’ Peter Tuchman breaks down the social platform’s debut and what it means for the overall IPO market in 2024.
CEO and co-founder of Alix, Alexandra Mysoor, discusses why it’s so important for everyone, regardless of income, to both plan and settle their estates.
After the Fed forecast three cuts to come in 2024, Kevin D. Mahn, President and CIO at Hennion & Walsh Asset Management breaks down why the market looks strong, and he sees some reasons for concern in Reddit’s choice to IPO.
Federal Reserve officials signaled that they still expect to cut their key interest rate three times in 2024 despite signs that inflation was surprisingly high at the start of the year.
