wholesale gemstone jewelry steel chain
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wholesale gemstone jewelry steel chain
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druzy stone jewelry wholesale in kolkata Water droplet identification method.
1. First use water droplet identification method to drop a drop of water on jewelry and jade.
2, follow the shape of the dewdrops for judgment.
3, the shape of the dew is true jade for a long time, and the water droplets quickly disappear are pseudo -shoddy goods. For jade testing, this is the fastest method.