faceted
adjective
having facets, or small, polished, flat surfaces, cut on it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He looked down at them as if he were really interested in the flat, unfaceted diamond, engraved with the Tarnhorst arms, that gleamed on the ring on his finger.
From Thin Edge by Randall Garrett