Gemstone treatment
Bleaching
Whiter or cleaner body color, sometimes with slightly chalky surface in overtreated material. In pearls, bleaching is often part of routine processing.
01
What to look for
Whiter or cleaner body color, sometimes with slightly chalky surface in overtreated material. In pearls, bleaching is often part of routine processing.
02
What it means
Bleaching removes unwanted color or stains. Acceptance depends on gem type, extent, and market norms.
03
Expert move
For pearls, bleaching may be normal. For jadeite, bleaching combined with polymer impregnation is a major value issue.