14k/18K solid gold is a wise and great choice, it will last you a lifetime and you will be able to share it for generations to come. 

A few areas to pay extra attention to jewelry care:

Swimming due to the risk of it falling off and getting lost. Make sure you are not wearing any loose pieces 

Cleaning-when using harsh chemicals or cleaning supplies

Gym- lifting weights can scratch gold and damage stones

Be careful with handling pieces that have stones, please handle delicately.