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 major dialect of China both in terms of number of speakers (about 70% of the total population) and political importance.The term Mandarin is an English translation of guÄn-hua âhuÃ  officialâ, language.i., e the dialect spoken In. beijing Standard Mandarin is the official language of mainland China and of Taiwan where it serves as a lingua franca for speakers of mutually unintelligible dialects. 2  Standard Mandarin is used in all spheres of informal and formal communication.