Tianyu Promotion Price Lab Grown Diamond IGI certified 1.136ct Cushion Cut Fancy Blue Loose CVD/HPHT Diamond 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