Natural Silver Topaz is one of the prettiest stones there is.  These stones are excellent examples -- well cut and full of sparkle.

If you wonder why it's called Silver Topaz rather than White or Clear Topaz (you've never heard of Silver Sapphires, now have you?) -- clear Topaz has a Silvery sheen to it.  The name just pops into you head when you see it.

These stones are set into a bezel setting, hanging from a threader earring. 

There's no reason why this stone shouldn't last you for years, and dazzle every day of it.