Walk into any number of chic boutiques in the world —the Calvin Klein flagship on Madison Avenue, Dior in London, Dover Street Market in New York — and you're bound to see the work of Samuel Amoia, the interior designer–turned–furniture phenom who's shot to stardom in the last few years making pieces that mix high and low materials, and incorporate healing minerals and crystals such as amethyst, malachite, pyrite, onyx, and agate. But there's one place you won't find many examples of Amoia's work — in the spare, textural one-bedroom Chelsea apartment he's shared for five years with his boyfriend, Enrique, and two dogs, Pig and Bruno.