Transparency and a high-resolution photograph of the item. Grading Reports (Diamonds) Colored Stone Reports & Services Details - GIA
Carat weight, measurements, shape, cutting style, and color.
Can provide geographical provenance (e.g., Kashmir vs. Burma) for specific stones like rubies or sapphires.
Identifies enhancements like heat treatment or fracture filling.
This is the standard for colored stones. It typically includes: