冠部 meaning in Chinese

acron
corona
crown
kamuribe

Perhaps the most famous diamond came onto the scene in the 1600s when world renowned gem merchant jean baptiste tavernier brought from india the 112 carat great blue diamond , part of which later became the hope diamond , and the hoh - i - noor in the british queens crown
2亮度钻石的亮度是指任何角度进入宝石冠部的光，都可以通过宝石内部，然后又经宝石冠部小面射出来，并被观测者眼睛所看得到的光亮。