This superb producer has turned out an intense, mineral-scented wine that comes as close as anything I have tasted in California to resembling a great grand cru from the renowned Chablis producer, Jean-Marie Raveneau. The 1991 Chardonnay from the Diamond T Estate possesses great fruit, full body, a superbly well-delineated personality, and excellent underlying acidity. A rich, multidimensional Chardonnay with considerable finesse and force, it should be drunk over the next 2-4 years.