After detailed scans of the find and a yearslong preservation process, experts identified the material as a 1,600-year-old purple fabric woven with gold threads. Its purple dye, now faded to a red ...

Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, ...

Of all the games in its massive library, these are the rarest and most valuable ... it seemed like a good idea to focus on the 3DS hidden gems that may have flown under the radar.

GIA’s laboratories use advanced instrumentation and research to deliver accurate grading, identification, and origin ...