Henan authoritative diamond appraisal center address
No.328, Longhai West Road, Zhengzhou, Henan Province Jewelry and Jade Quality Inspection Station
Henan province gold and silver jewelry quality supervision and inspection station No.28 Jinshui Road, Zhengzhou City
Or you can also search for identification through related websites on the Internet, which is the same. Zakaly Jewelry provides professional diamond identification skills.