Yellow Jasper Gemstone. Another extremely protective stone, Yellow Jasper also has the ability to neutralise radiation and other forms of environmental and electromagnetic pollution. It is a nurturing stone, helping to calm the nerves and emotions. Yellow Jasper aids disorders of the stomach and digestive system, helps to relieve bloating and is effective in the promotion of tissue regeneration.Price is for one stone. Stones vary in shape and size. Sizes are approx.