Roughly 28mm. Compared to the 50 cent coin. Blue Tigers Eye is a highly soothing stone that can reduce your stress, ease your anxieties, and increase your calm and relaxation. The energies of Blue Tigers Eye will aid in removing fatigue and easing the symptoms of depression. Golden Tiger's Eye has meaning and properties to adjust energy balance. It is a gemstone which can obtain the balance power with offence strength and defense power. If you need to conflict, you will be able to give courage and vitality. When defensive is necessary, it gives you calmness and insight.