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- Title
BOX A: PEARL TREATMENTS.
- Abstract
The article presents information on the treatments for akoya cultured pearls. These pearls have a long history of accepted treatments. During the early 20th century, Japanese producers developed several processes to improve the appearance of their pearls. In traditional akoya processing, the first step is called maeshori which involves immersing the pearls in a solvent for cleaning. The second step is bleaching, which removes dark organic compounds and creates a purer white. The last step is tumbling which improves luster. To alter pearl color, dyeing and irradiation have been used for many years.
- Subjects
CULTURED pearls; PEARL oyster culture; GEMS &; precious stones; PEARLS; OYSTER culture; IRRADIATION
- Publication
Gems & Gemology, 2007, Vol 43, Issue 3, p204
- ISSN
0016-626X
- Publication type
Article