Tianyu Wholesale Lab Grown 1ct to 4ct DEF VS IGI Certified Emerald Cut HPHT/CVD Diamond For Jewelry 1.Firstly, put the HPHT diamond in to a Plastic vacuum bag. 2.Packed with Polyethlyene Bag and Soft Paper. 3.Put some bubble paper into the carton box for proteciting stones. 3.As customer requested