Desert SilverWhen better to launch new looks than during the biggest market week in ­America? While making the rounds of the shows in Las Vegas, we spotted numerous new silver collections worth closer inspection. Here are just two you’ll want to consider stocking.Hera CollectionToronto-based Hera Arkarakas has been making jewelry for more than 30 years: She grew up in a jewelry family, honed her skills at George Brown College in Toronto, and ran a manufacturing firm with her husband in the 1980s. But it wasn’t until 2010, after her husband’s death, that she launched Hera Collection. She abandoned the classical high-end looks she’d previously relied on in favor of more wallet-friendly “fun and ­spirited” styles. Marquise shapes—inspiration from peacock feathers—are a staple since the bird is the symbol of the Greek goddess Hera. Plus, who doesn’t long for that elongate