EXCLUSIVE AT NET-A-PORTER. Holistic coach Tori Boughey bases her practice with TBalance Crystals around the healing properties of stones and positive affirmations - the lettering on this set of two bracelets reads 'Calm' and 'Balance'. They're each strung with aventurine that's said to help dissolve negative feelings and encourage a sense of well-being. - Aventurine - Slip on - Made in the UK