Diamond enhancements are specific treatments, performed on natural diamonds (usually those already cut and polished into gems), which are designed to improve the visual gemological characteristics of the diamond in one or more ways.
Mandarin is the language of instruction of China and Taiwan. Mandarin is one of five major regional languages of China. It spreads wider than any other regional language, from the whole northern part of China down to Yunnan Province in the southwest corner of China.
Mandarin is the most common language in the world as it is the official language of Mainland China, Taiwan, and one of the official languages of Singapore. Thus, Mandarin is commonly referred to as Chinese.. But in fact, it is just one of many Chinese languages. China is an old and vast country geographically speaking, and the many mountain ranges, rivers, and deserts create natural regional borders. Over time, each region has developed its own spoken language.