Ring size is adjustable 
Ring is made of alloy metal and genuine gemstones
Ring top measures .5 inches in diameter 
Amethyst-purple/gray- guards against psychic attack transmuting the energy into love. A natural tranquilizer amethyst blocks stress and negative environmental energies. It enhances spiritual awareness, and when you meditate, it turns thoughts away from the mundane and into tranquility and deeper understanding. Mentally it helps you feel less scattered and more focused and in control of your faculties. It is helpful when insomnia is caused by an overactive mind and protects against recurring nightmares. Amethyst enhances memory and improves motivation, making you more able to set realistic goals. It can help you remember and understand dreams in the visualization process. It dispels anger, rage, fear, and anxiety alleviating sadness and grief it supports coming to terms with loss. It opens intuition and enhances psychic gifts this is an excellent stone for meditation