Cell phone charm with amethyst, rose quartz, black tourmaline and sterling silver
I made this cell phone charm with black tourmaline, amethyst and rose quartz because amethyst and black tourmaline protect us from negative energies of a cell phone and rose quartz attracts loving phone calls. More about these gemstones:

Black Tourmaline purifies negative energy and changes it into usable energy. This crystal protects against cellphones, electromagnetic waves, radiation, psychic attack and all kinds of negative energies.  It is especially useful for the people with high levels of stress in their lives. Black Tourmaline helps to get rid of negative emotions, like anger and jealousy. Black tourmaline strenghtens the immune system, purifies the body of toxins and wastes, and helps to relieve pain.

Rose quartz
Rose quartz is the crystal of heart and unconditional love. This crystal teaches to love oneself and others as well. The special ability of rose quartz is the healing of heart wounds and restoring trust. It has a very soothing effect and it is recommended for hyperactive kids and babies who cry a lot. Rose quartz releases tension, stress, anger and fear. Since rose quartz is a powerful crystal of love, all chakras react to it. It can be given as a gift to anyone, even strangers. As a talisman of love, rose quartz sends out compassion and understanding.
Rose quartz helps overcome all diseases related to the heart, and emotional traumas as well. It is also useful for the blood circulation, lungs and kidneys.

Amethyst is a stone of spiritual protection, purification and transformation. It is used to get rid of bad habits since it has cleansing effect and it helps one find balance and restraint. Bad habits in question include alcoholism, smoking, drugs, bulimia, etc. Amethyst also aids travellers and therefore it is good to keep it in the car where it helps on reach the destination safely. Amethyst eliminates fear of changes and eases one's view on the future. It is especially useful for children, who often express their emotions with anger and rage, because of its calming and balancing effect. It also relieves sadness and grief, and helps to cope with losses. Due to its cleansing effect, it is used to block geopathic stress. Amethyst relieves pain, headaches, reduces swellings and injuries. It is beneficial for lungs, respiratory tract, skin and digestive tract.