How do I say "Aqua" in traditional Chinese and how would I draw it in Chinese Calligraphy?

I think aqua is the short term for aquamarine.
So check the Longman, copy the explanations as below and its Chinese translation, sound, and pronunciation are also appendixed.
Noun：
1.aquamarine：a greenish blue jewel, or the type of stone it comes
from. 藍2寶3石 2 (lan　bao　shi)
2.a greenish blue color. 淺3綠4色4 (qian　lu　se) / 水3綠4色4 (shui　lu　se)
Adjective：
Aquamarine. 淺3綠4色4的2 (qian lu se de) /
水3綠4色4的2 /shui　lu　se　de)

PS: It seems Google Translate has many versions. My Google Translate can’t recognize the short word of “aqua”.
Clicking “aquamarine” into the in-box of my Google Translate, the output is “藍晶(晶1 sound/jing in Chinese Pinyin)”. Though “藍晶” is understandable in writing, but in casual(speaking) language, we usually say “藍寶石”, because there are too many words have the same pinyin as “晶”, so to say it as “寶石(which means valuable stone)” is much easier to be understood and is commonly used in speaking.