Joining the Upper East Side’s high-end jewelry pack on December 2 is Tanagro (450 Park Ave., at 57th St.; 877-826-2476), a supplier to the stars previously available by appointment only. Once inside the red-leather-padded walls, you’ll pay at least $1,500 for a diamond-pavé ring, or $250,000 for a diamond-and-sapphire necklace in platinum.
Other noteworthy openings: Nina Griscom’s self-titled store opens on December 1 (958 Lexington Ave., at 70th St.; 212-717-7373). Leaving her Southampton store partner Anthony Todd behind, Griscom traveled the world to find unique home furnishings like a goatskin-covered cabinet from the forties ($35,000), silk votive candles ($50), and coral picture frames ($150). And on December 5, South African legend Carrol Boyes (who counts Nelson Mandela among her fans) opens up shop (118 Prince St., nr. Greene St.; 212-334-3556), selling functional-yet-sophisticated pitchers, plates, and platters made from pewter, aluminum, and stainless steel ($16-$3,000).