Hunter Green Velvet Underglaze is an emerald color that is vivid at cone 05, darkens to a deep blue-green at cone 5, and becomes slightly darker and develops a sheen at cone 10. A clear glaze deepens the color of the underglaze significantly at any temperature. For Hunter Green Velvet Underglaze, we recommend using HF-9 Zinc Free Clear. If HF-10 Clear is used, color may shift.