25x12mm, including bale. 48 carats. This is the one with the perfect termination. This is a bicolor tourmaline with a blue (indicolite) cap and a black base. Blue Tourmaline is a crystal of Spirit and peace, providing for deep meditation and bringing past hurts to the surface for healing. Black tourmaline is a powerful grounding and protective stone, often used to ward off negative energies and promote emotional balance and inner strength.