Yucheng District, Ya 'an City. Tianquan county, which belongs to Ya 'an City, Sichuan Province, is located in the western edge of Sichuan Basin, at the foot of Erlang Mountain, on the upper reaches of Qingyi River, and the Sichuan-Tibet Highway (National Highway 3 18) runs through the whole territory. The local Dingyi Jewelry Store in Yucheng District, Ya 'an recycled diamond ring, which is an ornament composed of rings and diamonds. Diamond is one of the precious stones with a long history. Her appearance is crystal clear and pure, which is just the moral of a beautiful love.