Variations » Quality

The quality of the pearl depends on the luster and thickness of its nacre, which are the numerous layers covering the nucleus. The layers of nacre refract light to produce the various colorful tones of the pearl. The luster is most important to assess the pearl’s value. The chart below depicts the typical evaluation of a pearl:


GRADING DESCRIPTION
Top Gem 100% flawless with tremendous luster
AAA 90% flawless, with excellent luster
AA 70% flawless, with medium luster
A 50% flawless, with low luster