钻石4C-Clarity IF VS1 VS2 SI1 SI2 I1 I2 I3 Internally Flawless VeryVery Very Slightly induded,very Slightly imperfect Indusions visible slightly indusion small indusions small indusions to the naked eye 钻石的内含物（10倍放大镜下看)：类似白色羽毛状的 杂质、白色或黑色斑点、白色棉花状的团块等。钻石4C—Clarity 钻石的内含物（10倍放大镜下看）：类似白色羽毛状的 杂质、白色或黑色斑点、白色棉花状的团块等