Nacre is the layer of thickness underlying the pearl. Tahitian Pearls have a nacre of 2-4 mm thick. The nacre implicates the foundation and longevity of the pearl. The nacre of the pearl can be seen by during the drilling process as the jewelry is made.

Luster is the brightness and shine of the pearl. One can often measure the luster of objects reflected on the pearl’s surface.

Surface Quality has a lot to do with the grading of the pearl. Le Mana Perles grading scale is true to the buyer’s in Tahiti. Birthmarks are referred to the imperfections on the pearl. It does not necessarily reflect the luster of the pearl.

Grade A:  90% Blemish Free Surface with no deep imperfections. Very High Luster with detailed face and reflection.

Grade B:  70-80% Blemish Free Surface with few imperfections. High to medium Luster with Good face and reflection.

Grade C:  60% Blemish Free Surface with more than 3 imperfections. Low Luster with very little face and reflection.

Grade D:  is not an option at Le Mana Perles. We take pride in the quality we offer our customers.

Size:  pearl sizes vary. The most common sizes are 8 mm to 14 mm in Tahitian Pearls.