The South Sea Pearl Blog / pearl authentication

Learn how seller certificates, appraisals, and independent pearl laboratory reports differ—and how to check identity, classification, treatment findings, limitations, and document-to-jewel matching.

Learn how routine pearl processing differs from color and surface treatments, what natural-color claims mean, and how seller disclosure and independent laboratory reports answer different questions.

Nacre thickness describes a pearl’s internal construction, not its entire quality. Learn how it differs from luster, what visual inspection can establish, and when laboratory evidence is appropriate.