Low Quality Tahitian representing the bottom 50% of pearl harvest (Not Sold at Pearl Source)
Medium-Grade Tahitian representing top 60% of Harvest. Commonly found at jewelry stores and Major Department Stores (Not Sold at Pearl Source)
High-Grade Tahitian representing the top 5-10% of a pearl harvest. Found in Finer Jewelry Stores.
Very High-Grade Tahitian representing the top 1-5% of a pearl harvest.
Pearls having flaws on at least 60% of the pearl surface, with 20% containing deep imperfections.
Flawless pearl on 40% of its surface, with the remaining 50% having minor imperfections and 10% containg deep flaws.
Flawless pearl on at least 80-85% of its surface, with remaining 15-20% containing only minor imperfections with one or two deep imperfections.
Flawless pearl on at least 95% of the pearl surface, with 5% concentrated imperfections.
