"On a corner of Carlos Place—arguably the most sublime shopping street in Mayfair—is McCormack’s atelier. The three-floor townhouse is filled with such beautiful furniture and art collection that you forget you’re there for the jewels. Until you see them: necklaces of cascading diamonds, Art Deco drop earrings, and engagement rings galore. And McCormack excels at breathing new life into family heirloom rings by creating modern “jackets” of jewels to surround the older piece to make it wearable for modern styles. An appointment here might involve relaxing on the sofas upstairs, flipping through the dozens of art and photography books stacked elegantly on the shelves for reference, or chatting with the designer about what your aesthetic preferences. McCormack considers herself a family jeweler, which is fair given that once you’ve ordered a piece, you’re likely to continue going back. The entire experience is bespoke, elegant and thoughtful. "