Which term describes the process of forming the pavilion angle by gradually polishing off the extra material at different angles?

Which term describes the process of forming the pavilion angle by gradually polishing off the extra material at different angles?

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

Answer: (C)

Coning describes shaping the pavilion by progressively removing material at varying angles to create a cone‑like lower half. The pavilion is the bottom portion of the diamond, and achieving the correct pavilion angle requires controlled material removal at different angles around the stone as you polish. This gradual, angle‑specific removal distinguishes coning from simply polishing facets or other steps. Doping is mounting the stone, bruting is rough shaping of the overall outline, and polishing is finishing the facets after the angles are established. So coning is the term that fits this process of forming the pavilion angle.

Coning describes shaping the pavilion by progressively removing material at varying angles to create a cone‑like lower half. The pavilion is the bottom portion of the diamond, and achieving the correct pavilion angle requires controlled material removal at different angles around the stone as you polish. This gradual, angle‑specific removal distinguishes coning from simply polishing facets or other steps. Doping is mounting the stone, bruting is rough shaping of the overall outline, and polishing is finishing the facets after the angles are established. So coning is the term that fits this process of forming the pavilion angle.