1.20years experience of mozambique manufacturing 2.more than 500 kinds cutting styles 3.quality grades: AB,A,AA,AAA,AAAA AAAAA ABOUT US HuangHe Gems Firm is an integrated trading company with the ability of product development, production, custom made,process and sales.We produce the synthetic gems including cubic zirconia,glass,spinel,corundum etc kinds of synthetic gems which meet the needs of ...