Can provide geographical provenance (e.g., Kashmir vs. Burma) for specific stones like rubies or sapphires.
Transparency and a high-resolution photograph of the item. Grading Reports (Diamonds) Colored Stone Reports & Services Details - GIA buy gia certified gemstones
Species (e.g., Corundum) and variety (e.g., Ruby). Can provide geographical provenance (e
GIA certification provides a universally recognized standard for a gemstone's authenticity and quality, acting like a "DNA profile" for the stone. Because GIA is a nonprofit research institute that does not sell gems, its reports are considered unbiased "gold standards" in the industry. Why It Matters Confirms if a stone is natural or synthetic. Can provide geographical provenance (e.g.