Results diversification is an approach used in literature to cover the possible interpretations of the results produced by query evaluation. For diversifying search results we propose the GrOnto model. This model is based on a normalized granular view of an ontology: GrOnto allows to associate each result with the suited topical granules in order to categorize it based on the granular information. Categories and Subject Descriptors H.3.3 [Information Storage and Retrieval]: Information Search and Retrieval- information filtering, search process