All Giardinoblu jewels are made of nickel free materials and finishes.Feel free to buy the jewels that you love the most from Giardinoblu and wear them with joy and freedom.However, intolerance to nickel could be very high for some people and allergy could manifest also wearing nickel free bijouxIf your intolerance is very high you will definitely have experienced that the only wearable metals for you are gold and steel. I don’t advise buying in our Boutique just in these cases.