Describe a mysterious black stone pendant set in an intricately crafted silver f

Describe a mysterious black stone pendant set in an intricately crafted silver frame, hanging from a delicate chain. The pendant should exude an aura of ancient power and mystique, with faint, glowing runes etched into the stone. This enchanted piece is central to a fantasy medieval story, imbued with a magical essence that holds great significance to the plot

(worst quality, low quality:1.4), bad hands, bad fingers, deformed hands, deformed fingers, fewer digits