Gemisphere’s Quartz necklaces are made with flawless, optical-quality Quartz spheres and intentionally frosted for maximum therapeutic effectiveness. The vast majority of frosted Quartz available today is lower-quality Quartz that is frosted to hide its flaws. Therapeutic Quality Quartz To receive the maximum therapeutic benefits from Quartz, only optical or near-optical quality spheres should be used. Optical-quality Quartz is colorless, clear, and free from flaws to the naked eye. Such flaws include cracks and inclusions, or foreign matter. Near-optical Quartz has very slight flaws in a small portion of the sphere but is otherwise identical to optical quality. If a Quartz sphere has anything more than very slight flaws, its ability to balance your physical, emotional, and mental bodies will be significantly inhibited. Therapeutic Quartz also has no hint of yellow, gray, brown, or smoky coloration. Color contamination and internal flaws greatly limit the spheres’ inflow and outflow of energy. People who wear lower-quality Quartz may still feel some effects, since any gemstone will influence an individual's energetic field. However, only the highest quality Quartz necklace—one with deeply frosted, optical or near-optical quality spheres and precisely cut drill holes—will spark the true changes and transformations one seeks from this gemstone. Optical-quality Quartz is extremely rare. Yet it is well worth seeking out, since a necklace made of such Quartz radiates an incomparable energy.