All Categories - KELLY GEMS

Congratulations to Kelly Her research published in China's most prestigious gem research journal

2025年8月22日
In personal capacity, without supervisor or co-author

Observations on the Upstream Market of Colored Gemstones in Sri Lanka-Beruwala

2025年8月22日
Sri Lanka has long been an important region for sourcing-colored gemstones. In addition...

Sapphire

2022年10月26日 · Sapphire
  Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as...
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