Pearl Measurements
Cultured pearls are measured in millimeters (mm). Common pearl sizes are converted as follows:
| 5mm to 6mm: | approximately 1/5 of one inch |
| 6mm to 7mm: | approximately 1/4 of one inch |
| 7mm to 8mm: | approximately 1/3 of one inch |
| 9mm to 10mm: | approximately 2/5 of one inch |
| 12mm to 13mm: | approximately 1/2 of one inch |
