紅
紅 – Hong2 – Red, Popular, Revolutionary
紅寶石 – Hong2 Bao3 Shi2 – Red Gem Stone — Ruby
藍寶石 – Lan2 Bao3 Shi2 – Blue Gem Stone — Sapphire
Are they all going to be this boring?
翡翠 – Fei3 Cui – Male Kingfisher Female Kingfisher — Emerald
I guess not.
鑽石 – Zuan4 Shi2 – Drill Stone — Diamond
I wonder why?