Which term is defined as the act of shaping the rough into its basic outline before faceting?

• A. Coning
• B. Dop
• C. Bruting
• D. Planner

Answer: (C)

Shaping the rough into its basic outline before faceting is bruting. This step comes after rough removal and sets the general silhouette of the stone, establishing the girdle outline that will guide the later, precise facet cutting. Bruting is the action of forming that basic shape—often bringing the stone toward a round or intended silhouette—so the subsequent faceting can be accurate and symmetric. The other terms don’t describe this outlining work: coning isn’t the recognized preforming step for outlining a diamond, a dop is simply the tool used to mount the diamond during cutting, and planner isn’t a term used for this stage in diamond processing.