Genuine Gemstone 14K Gold-Plated Sterling Silver Lobster Clamp Closure Length: 16"  Extender: 2" Natural color may vary Quartz possesses the power to amplify intentions, promote mental clarity, and enhance spiritual insight. Tourmaline is a protective and grounding gemstone that aids in energetic cleansing, shielding against negativity, and promoting emotional stability, allowing for greater clarity and serenity.