Pearl grading

WinPearl.com adopted AAA+ to A- quality grading system with AAA+ the highest quality and A- the lowest quality. We try to describe our product as accurately as possible. In addition to the quality grade of each product, we have more detailed product description to help our customer make purchasing decision.

 

Overall grade	Luster	Nacre	Blemish	Shape	Matching
AAA+	excellent	excellent	Unblemished	perfect round	excellent
AAA	very good - excellent	very thick - excellent	very slightly blemished - unblemished	vey round	very good - excellent
AAA-	very good	very thick	very slightly blemished	very round	very good
AA+	good - very good	thick - very thick	slightly blemished - very slightly blemished	very round	good - very good
AA	good	thick	slightly blemished	round	good
AA-	medium - good	medium - thick	lightly blemished - slightly blemished	round	medium - good
A+	medium	medium	lightly blemished	slightly off round	medium
A	fair - medium	fair - medium	easily visible - lightly blemished	lightly off round	fair - medium
A-	fair	fair	easily visible	drop/pear shape	fair