18" dainty silver plated chain
1” tall Natural real gemstone
Onyx is a stone of happiness, good fortune and strength. It is said to be useful in fighting basic fears and helping to move beyond bad relationships--as well as to heal old emotional wounds. Onyx is thought to bring strength, balance and self control. It is very good for people under extreme mental or emotional stress. It is an excellent stone for releasing negative emotions such as sorrow and grief, and therefore brings good fortune and helps in recognizing personal strength. This black colored stone helps in relaxation, and in facing various challenges in life, especially if one suffers from a lack of life energy and exhaustion.
Research more on your own for more info