When purchasing pearls, it’s essential to understand that there is no global standard for grading. Each seller uses their own grading system, so one seller's AAA grade might differ from another’s, even if they share the same label. This means a pearl rated AAA by one merchant could be considered AA or even A by another, depending on the range and quality of pearls they offer. As a result, finding a reputable seller with extensive experience and a track record of reliable quality is more important than focusing solely on grading labels. It's best to choose a seller who offers transparency and guarantees for the quality of the pearls they sell.
Grading Criteria
AAA
AA
A
Luster
Very strong, mirror-like reflection, smooth and bright
Strong, but slightly less reflective than AAA grade
Weak luster, unclear reflection
Surface
Virtually flawless, smooth surface, blemishes less than 5%
Few minor blemishes, up to 10% surface imperfections
Noticeable blemishes, more than 25% surface imperfections
Shape
Perfect round or near-perfect round
Close to round, slight imperfections may be visible
Irregular shape, often oval or asymmetrical
Rarity
Extremely rare, limited quantity, especially for large, high-quality pearls
Slightly rare, common sizes and qualities
Common, higher production rate, more easily available
Luster is the most critical aspect when grading pearls. It refers to the shine and reflective qualities of the pearl's surface, and it greatly impacts the overall appearance and beauty of the pearl. The higher the luster, the more desirable and valuable the pearl. Pearls with strong luster are often considered the best quality, regardless of other factors.
