刻面宝石如何鉴定？有了它妈妈再也不用担心我买宝石被骗了
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| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 360P | Download |
| MP4 | N/A | 360P | Download |
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| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
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在宝石颜色集形状相似的情况下，使用折射仪进行鉴定会大大提高鉴定的准确率和效率，妈妈再也不用担心我买宝石被骗了！
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