Frequently asked questions

What does “Predominantly” mean on a pearl report?

“Predominantly” is used on GIA reports on an infrequent basis to provide a general or overall opinion on the identity of pearls where there are too many to identify individually or where the structures may enable a general idea to be obtained but really require more detailed analysis to confirm fully. The overall structure would indicate one identity more than another. For example the initial microradiography work on a strand of pearls may show that many pearls exhibit suspect or non-bead cultured pearl structures yet some pearls may not show enough to reach such a conclusion. Instead of stating “non-bead cultured pearls” on the report, GIA would, in such a case, state “Predominantly non-bead cultured pearls” .

contact us