Diamond Head Turquoise Matrix Luster Stone Upholstery Tack in Silver Setting Turquoise matrix luster stone hand blown glass cabochon stone, each one is a unique piece of art. A replica of actual turquoise, the perfect accompanyment for the rustic western environments 15mm glass cabochon stone cut in convex form and highly polished to a brillian shine stone encased in solid steel with brushed silver plating Update your: dining room chairs, headboards, ottomans, sofas, all types of wood furniture, cornice boxes, walls, ceilings, picture frames, or where ever your imagination can take you Diamond head elite - our trademark system allows you to change the crystal or stone and bezel without replacing nails. change your mind? change your tack, not your furniture!