How to Get Dark Blue Sapphires from Rough Stones?
Автор: J K Diamonds Institute of Gems & Jewelry
Загружено: 2024-09-24
Просмотров: 10668
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Ever wondered how rough Sri Lankan sapphires turn into rich dark blue gems?
It’s all in the heat treatment! By heating these natural stones at high temperaturesin the furnaces, we elevate their colour to a higher-grade dark blue.
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