Size
South Sea Pearl size usually range from 8 to over 20mm. Australian South Sea Pearls average size is bigger than their Indonesian and Philippines counterparts. Relative proportion and balance come into play here rather than size alone.
Akoya Pearl size ranges from 4mm – 10mm with the average sitting around 6.5-8mm.
Our grading system for both South Sea & Akoya expresses Size as:
millimetres (mm) or momme (3.75g) – which is the Japanese weight measure for pearls and commonly used for the international market.