Love knows no budget, at least not in high-end British wedding planning circles. Now that love knows no privacy. A veteran London wedding planner, Imogen Edwards-Jones, has just penned what her publisher is calling “an insider’s account of how the super-rich tie the knot.” Wedding planners like Edwards-Jones typically handle weddings that run at least $250,000. Their fee: 20 percent of the total cost. How high can that cost go? One recent bash cost $7.6 million. The bride spent $130,000 alone “on trips to New York for dress fittings.” At another gala, a Russian oligarch shelled out $91,000 for a floral bridal arch. The most over-the-top wedding accessory of all? At one wedding, an Edwards-Jones client spent $30,500 for a cake no one ended up eating . . .