Maybe we’ve been mired in the frigid New York City winter for too long, but lately, our daydreams have been filled with sandy beaches, 80-degree weather, and pitchers of mojitos. So when we discovered that Piaget had designed a bejeweled homage to our favorite summer drink (price on request) we dusted off our Collins glasses and got into the collection’s spirit. “Piaget loves a party, and so do its clients,” says a company rep. “The Limelight Cocktail Party rings have been incredibly popular, so each year we serve up something new.” A few more scrumptious jewels the Swiss mixologis