Handcrafted matt 925 Sterling Silver ring with a rough hand-cut Green and Blue Kyanite, and Black Tourmaline gemstone. KYANITE THE WELL-BALANCED SPIRITUALITY • BALANCE • TRANQUILITY Brings clarity and tranquillity. A very calming stone that can be perfect in times of stress or when you’re anxious. Balances emotions and brings a clear mind so that you can work through your problems rationally. BLACK TOURMALINE FORCEFIELD PROTECTOR PROTECTION • SECURITY • STRESS RELIEF Wherever you happen to be on your spiritual journey, Black Tourmaline is an excellent crystal for everyone because it's the bodyguard stone that provides protection and elimination of negative energy.