size 6.1/2 Peridot , good for endoctrine and digestive system. Aid tissue regeneration. Beneficial to heart. pancreas, spleen, liver, adrenals. Purifies body, mind and heart . Cleanse negative thought and reduce stress. Stimulate mind . Enhance awareness and direct positive way of thinking . Opens new doors of life, brings in abundance -wealth and happienss. Chakra: heart, navel ,solar, also reach third eye.