You will get a pair intuitively chosen for you.
Healing Properties of Carnelian.
Carnelian helps to stimulate love and passion. Warriors would string Carnelian around their neck to give them courage in battle.  Like all fire stones, Carnelian infuses the body with life and light calling on the powers of physical energy. It’s all about stimulating the muscles, helping oxygen to find its free flow, and keeping your tissues and organs flushed with the finest health. For anyone out there who may be in a bind when it comes to their sexual energy, Carnelian may be able to help. This stone stirs up fertility and even for those not wanting to go down that path, it can be an amazing aid in giving your libido a boost and helping you to fully step into the fire of your own sexual identity and power.
This bright burst of energy will get you back on your feet and feeling the drive to go forth and conquer, especially when it comes to creative projects. 
Carnelian is connected to the three lower chakras. The Root Chakra is the foundation of all our chakras, it is where our safety sits and keeps us grounded to the world that holds us. If the Root Chakra is blocked, it may feel like you are totally off balance and that you live life constantly feeling on edge and in a place of insecurity. When this chakra is in flow you know you can take emotional risks in life because the centre will always hold.
The Sacral Chakra is where our passion, intimacy, and the inner fire sits. If yours is blocked, you may feel that you struggle to connect, and that joy almost seems impossible to find. Carnelian awakens this zest for life, letting the energy flow through from the ground to the naval. The final chakra connected to Carnelian is the Solar Plexus Chakra, the place where our personal power burns. This is the centre of our self-esteem and where our warrior spirit sits in wait. If your Solar Plexus isn’t flowing, then you may feel as though there’s no fight left in you. Fear not, Carnelian is here to call that warrior into action.
Disclaimer - I am NOT a medical professional & this should not be used in replace of seeking advice from a medical professional or medication.