Terahertz Druzy Statement Ring - Designer GemstoneThis is a truly stunning statement ring! Terahertz is a man made stone that was first synthesized by Japanese scientists. It is made up of silica and is formed by extracting quartz or silica from grains of sand. Terahertz druzy has a shiny luster that resemble stainless steel. Druzy is a layer of tiny crystals that forms on top of a rock or gemstone. The crystals sparkle and glitter, catching light rays. All Henryka jewellery comes complete with a