| black diamond | เพชรดำ [ธรณีวิทยา๑๔ ม.ค. ๒๕๔๖] |
| carbonado | (n) an inferior dark diamond used in industry for drilling and polishing, Syn. black diamond |
| 黒ダイヤ | [くろダイヤ, kuro daiya] (n) black diamond [Add to Longdo] |
| 黒金剛石 | [くろこんごうせき, kurokongouseki] (n) black diamond; carbon; carbonado [Add to Longdo] |