On the basis of the eruption time and tectonic setting of primary diamond- bearing parental rocks (e.g, kimberlites and lamproites) in China, combined with the nature and evolution of the deep continental lithosphere of North and South China, this study discusses the favorable formation and preservation conditions of primary diamonds in China, such as the relatively old, cold, thick lithospheric keel, and long enough residence time of diamonds in the mantle. In addition, based on relationship between deep mantle and shallow intrusion processes with respect to magmatism of diamond host rocks, it establishes a possible “multi- stage mushroom growth style” model for the emplacement of diamond- bearing parental magmas. This model provides some ideas for enhancing deep prospecting and discovery of blind rock bodies, to potentially enable a breakthrough in the prospecting of primary diamonds. We speculate that the late stage mafic- ultramafic magmas are likely to have fortuitously captured concealed (or abortive) diamondiferous kimberlites that formed in the early stage, or to have luckily passed diamond- bearing sedimentary strata during ascent. These accidental events result in an unconventional phenomenon that “non- kimberlites” rock bodies contain diamonds.