In this paper, the authors report the discovery of a similar collection of minerals in mantle peridotites of the Purang ophiolite, which lies in the westernmost part of the Yarlung-Zangbo suture, more than 1 000 km from the Luobusa massif. The Purang ophiolite consists mainly of harzburgite, lherzolite and dunite, probably of MOR type, which were modified in a SSZ environment. Based on the presence of similar minerals in the Ray-Iz ophiolite of the Polar Urals, and reports of diamonds in Alpine-type mantle peridotites, the authors suggest that diamonds and highly reduced minerals may be common in ophiolitic peridotites. These occurrences indicate a completely new environment for diamond formation.