苏鲁榴辉岩中除了早前发现的一粒金刚石外,最近又发现了6粒,它们具有基本相似的外形和大小,但其晶体结构与普通自然界金刚石和人工合成金刚石存在一定差别。金刚石具有异常X-射线衍射峰以及有磁铁矿的包裹体等特征,表明可以排除这些金刚石是人造或被外来样品混染的可能性。金刚石的再发现,证实苏鲁榴辉岩的形成压力可以达到4GPa以上,并且为大别和苏鲁两个超高压变质带的对比提供了一个重要标志。金刚石的异常晶胞参数和X-Ray异常峰的出现有可能与超高压变质作用有关,但需要实验岩石学研究证实。 In addition to the earlier discovery of a diamond in the Sulu eclogites, six more recently discovered six grains with similar shapes and sizes, but differing in crystal structure from ordinary natural and synthetic diamonds. The diamond has abnormal X-ray diffraction peaks and inclusions of magnetite and other features, indicating that these diamonds can be ruled out the possibility of man-made or foreign samples contamination. The rediscovery of diamonds proves that the formation pressure of the Sulu eclogites can reach above 4GPa and provides an important symbol for comparing the two EHV metamorphic belt between Dabie and Sulu. The abnormal diamond cell parameters and X-Ray anomalous peak may occur with the UHP metamorphism, but need to confirm the experimental petrology.