一块立方氧化锆比相同大小的钻石更重，但不如钻石硬。此外，立方氧化钴比钻石发出更多光芒 – English translation

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一块立方氧化锆比相同大小的钻石更重，但不如钻石硬。此外，立方氧化钴比钻石发出更多光芒

A chunk of cubic zirconia is heavier than a diamond of the same size, but not as hard Moreover, cubic zirconia produces more flashes of color than a diamond

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