One pair of high quality ruthenium 21 gauge earwires with Swarovski crystals set in the tips.  These have been patinaed to be gunmetal in color.

What is Ruthenium? A member of the platinum group, ruthenium is an extremely hard metal used as a premier alloy for palladium and platinum to make them more wear resistant. Objects plated with ruthenium have exceptional resistance to scratching and abrasion. Ruthenium plated surfaces offer a very unique finish and can be modified from a light grey to dark brownish-black grey color.