gemagenta 199 Carat Series Faceted Emerald Pendant, $25, EtsyDiamonds may be a girl's best friend, but they're so darn expensive that we haven't been able to adorn ourselves with the sparkly gemstones. That's why we're loving the slew of diamond jewelry that has popped up. These necklaces, rings, and earrings are shaped like faceted stones, but they're a little cheeky and don't have the hefty price tag that's usually associated with the hardest naturally occurring substance.