AGS Laboratories said it will now expedite diamonds weighing 7.00 carats and above at no extra charge, and will provide grading results within one business day. Similarly, diamonds weighing between 3.00 and 6.99 carats will be expedited at no extra charge, and the lab will provide grading results within three business days.%% “We realised there was a demand for the large-stone programs,” says Peter Yantzer, executive director of AGS Laboratories. “We are constantly seeking ways to help our clients sell more diamonds. It’s a fundamental structure of our philosophy to help them benefit from our products and services.”