Stone: 100% natural earth mined green tourmaline. Carat weight: 4.65 carat. Measurements: 10 x 8.20 mm. Cut: Emerald. Saturation & Color: Excellent. Beautiful unmounted loose green tourmaline gemstone. Perfect gemstone to set in engagement, wedding and bridal jewelry. Free from any scratches and blemishes. Green Tourmaline is ideal for healing purposes, as it can focus its healing energies, clearing the aura, and removing blockages. Green Tourmaline is often used for opening and activating the heart chakra, as well as providing a sense of peace and calm to the heart and nervous system.