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Pearl—natural or cultured—is a the birthstone for June, together with alexandrite and moonstone.
Natural pearls form in the bodies, or mantle tissue, of certain mollusks, usually around a microscopic irritant, and always without human help of any kind.
The growth of cultured pearls requires human intervention and care. Today, most of the mollusks used in the culturing process are raised specifically for that purpose, although some wild mollusks are still collected and used.
There are four major types of cultured whole pearls:
PICTURES ARE ENLARGED
PLEASE BE ADVISED, COLOUR MAY VARY SLIGHTLY DUE TO DIFFERENCES IN MONITORS.
GIA TYPICAL CHARACTERISTICS FOR THESE CHINESE FRESHWATER CULTURED PEARLS
SIZE | 9-10mm | ||
SHAPE | ROUND 85% | BUTTON 10% SEMI-BAROQUE 5% | MODIFIER CIRCLE |
COLOUR | BODY - WHITE | HUE - YELLOW | OVERTONE |
LUSTRE | EXCELLENT/GOOD | ||
SURFACE | CLEAN | ||
NACRE QUALITY | ACCEPTABLE | ||