Seraphinite with sterling silver beads.
Adjustable size. 
 
Seraphinite:
Self-healing, regeneration, wholeness, angelic connection.
All chakras.
Storm and Earth Energy.
 
Known as a powerful stone, it is said to assist in aligning the energetic body; this is said to happen along the spinal column, which may be why it has been connection with Kundalini energy and Kundalini awakenings before.
 
It is both centering and harmonising and may help to move blocked energy, especially if used with acupuncture too. It is also related to the Angelic realm too and may bring greater awareness to the Divine Feminine, bringing greater assistance to the wearer. 
Helps to heal old patterns and stagnant energy and heralding in new, fresh energy.