White agate this crystal is considered a grounding stone that is able to bring spirituality into your life, improve mental functions and help you think clearly, especially when you are concerned about some issues. The white color of agate gemstone is associated with peace, calmness, purity, and protection. ✓ 16-18Inch / 40-45cm *adjustable chain  ✓ 18k gold plated stainless steel ✓ waterproof: does not change color with water exposure.