I prefer buying natural gemstones however, these days what's being mined and sold for lower price range jewelry are generally horrible looking albeit natural gemstones.  Dark, opaque, cracked.  Even glass-filled gemstones (mostly rubies) is what companies are passing off as "gemstones" these days.  As a result, if you want a lovely looking gemstone, can't afford or refuse to pay a premium and prefer to keep some of your money in your pocket, then going the route of synthetic (man-made) gemstones offers a lovely, inexpensive (for now) alternative to getting stuck with ugly, albeit natural gemstones.

The stones for THESE earrings are apparently synthetic ruby and white sapphire.  The stones are clean and clear absorbing and reflecting light giving sparkle to the stones.  The rubies are red with a slight leaning toward the pink (this depends upon the light source).  The white sapphires are white, not quite as sparkly as diamonds, but then again, they're not diamonds.  The sterling silver is non-magnetic as sterling silver should be.  Small enough to be unobtrusive yet still large enough to be quietly noticed.  Can be worn everyday and look just as nice with jeans as they do with more classy attire.  Classy without arrogance describe these earrings.  Lovely.