Black Pearl Jewelry Catalog
South Sea and Tahitian Pearl Jewelry Since 1987
 
Luster - Black Pearl Qualities
The luster or brilliance of the pearl is usually the first thing that strikes the eye. The luster is caused by not only reflection of light off the pearl's surface, but the refraction of light from the inner layers of nacre, giving the pearl an exceptional and glowing luster. The pearls with the most mirror-like luster receive the highest grade for this quality, from A to D.
 
 
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