Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by property]
6. imitative materials
7. artificial stone
8. imitation gemstone

Anotations

Scope note:

Any natural, treated or man-made material with the appearance but not the composition, structure or physical and optical properties of a diamond. Use "synthetic diamonds" when referring to the artificial product with the same physical and chemical properties.