Many gemology libraries hold the series:

You can request a scan of specific pages for research under Fair Use, but not the whole book.

Before diving into the specifics of "Volume 1 PDF top," let’s establish the book’s legendary status. First published in the 1980s and updated in subsequent decades, the Photoatlas of Inclusions in Gemstones is a reference work that changed gemology forever.

Prior to its release, inclusion identification was a niche skill. Dr. Gübelin, the father of inclusion gemology, and Koivula, his protégé, compiled over 1,400 high-resolution photomicrographs. Each image captures the internal "fingerprints" of gemstones—liquid feathers, negative crystals, growth lines, and mineral solid inclusions.

While a masterpiece, the book does have limitations, primarily due to its age.