SI级别的钻石怎么样?可以买吗?

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　　sijibiedezuanshikeyimaima?zheigeyaogenjunindegoumaimudelaijueding，ruguoningoumaizuanshidemudeshitouziyushouzang，neimedakela、gaoyanse、gaojingdudezuanshidangranshizuishiheninde。danshi，zuoweiputongxiaofeizhe，goumaizuanshijinyonglaipeidai，jianjubaozhi，neizuanshisijibie、1kelayishang，zaijiashanggaoyidianded-fyansejiuzugoule。