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Search Results - Gemstones, May 2013

your search of 'Gemstones, May 2013' has 2 results.

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Chinese have been improving their methods for growing cultured pearls.

Gemstones
Advances in Chinese freshwater pearls

China has made many advances in technology across numerous fields and over the past 800 years or so the Chinese have been improving their methods for growing cultured pearls. Read more »
If jewellers do not know what treatments are being done how can they disclose these to customers?

Gemstones
Blue sapphire and its treatments

There have been more developments in gemstone treatments in the past 15 years than in the previous 50, and many of these concern sapphires and rubies. Read more »

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