Is there any trustworthy custom made jewelry studio in shanghai?

i'd like to have an engagement ring custom made, with special engraving in it, is there any good  custom made jewelry studios in shanghai?

My wife and i ,we made our engagement rings in Yves Lemay's jewelry studio,he is a cool guy,and he is faster ,cheaper !the rings were really fabulous !
u can refer to his website :new.ylemay.com/.