How to Determine Quality of Pearls - as part of the Wedding series by GeoBeats.
There are 3 main factors that generally determine the quality of Pearls. The first would be the luster. So, what you want to look at is how reflective the pearl is.
The second would be the surface and what you want to look there is how clean the surface of the pearl is. And then the third thing would be the thickness of material called nacre and the thicker the nacre the longer the pearl would last.