Topaz is generally a precious gemstone naturally often displaying a luscious range of smoky chocolate, cocoa and golden tones.  Topaz also occurs in icy blue shades, and reds, pinks, violet and green shades which are highly collectible.  During the Middle Ages, Europeans believed that wearing Topaz cured lunacy and deflected the evil eye. 
Natural Unheated Purplish Pink Topaz Octagonal Shape 6.19 Carats With GIA Report
Natural Unheated Yellow Orange Imperial Topaz  Cushion Shape 42.72ct With GIA Report