一些贵重的东西体积很小，例如钻石和其他珠宝。
Some valuable things are very small, like diamonds and other jewels.
其它互联网零售商，例如钻石小鸟，也成立了展示厅以鼓励消费者在网上购买高价的商品。
Other Internet retailers such as jewelry seller Zbird. com also have opened showrooms to encourage customers to buy higher-priced items online.
同时一些硬度相同或更高的物质，例如钻石、刚玉、氧化金属、石英水晶都有可能损坏这些材料。
At the same time, some of the same or higher hardness material, such as diamond, corundum, metal oxide, quartz crystals are likely to damage the material.
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