Abstract: Sapphire color classification is an important link in the gemstone industry, which is directly related to the market value of sapphire and consumers' purchase choice. Traditional color ...

Caterpillar Financial Services filed a breach-of-contract lawsuit against Perry's Grading and its owner James Perry on Dec. 11 in North Carolina Superior Court for Johnston County. The action, brought ...

As a local educator, I see the same pattern every year: students with impressive GPAs walk into my classroom confident, capable and ready to work, at least on paper. But when it comes time to read ...

Buying graded cards or getting your cards graded has become a major part of the card collecting hobby. Whether you’re a seasoned collector or just pulled a rare card from a pack, getting cards graded ...

Grading giant PSA is increasing submission prices and turnaround times for select service levels due to high demand, the company announced Wednesday. Effective Thursday, PSA will increase turnaround ...

CARLSBAD, Calif. – August 26, 2025 – GIA, the Gemological Institute of America, will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1. Current GIA laboratory ...

Discussing PSA's lead in card grading, key tools in Market Movers, the Formula 1 card market, and long-term value of Topps’ Project sets. A must-watch for sports card investors! Missing Kentucky teen ...

A new card grading company emerged earlier this month with promises to provide cheap and transparent grading using artificial intelligence and machine-learning technology. But two weeks after its ...

FARGO, N.D. – The City of Fargo is letting residents – especially new homeowners – know about a free service they provide that could save your yard from a lot of damage. Before a homeowner plants ...