Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. mineral
8. diamond (mineral)

Anotations

Scope note:

Diamond that is colored blue by trace impurities of boron within the crystalline lattice structure; belong to a subcategory of diamonds called fancy color diamonds, the generic name for diamonds that exhibit intense color