These all crystals are very beneficial for the Leo sign:-

Sunstone- The crystal gives leo the extra boost of confidence they often need in order to get what they want out of life. These powerful stones are associated with independance and originality.

Royal Azel (Sugilite)- is known to boost the ego and help any leo sign to achieve their goals much faster. This Leo gemstone is known to radiate positive energy and protect you from any negative energies. It also helps when it comes to being in a toxic relationship so you can get out of it quickly.

Citrine- is considered to be the leo birthstone. It can help them stay focused and grounded when life gets too hectic

Tiger eye- is another one of the best crystals for a leo individual. It helps give you the courage to get what you want out of life.

Fire Agate- is considered to be a grounding stone because of its calming energy and protective force. It is a great protective stone to have.