BEFORE SCENTED candles were a $533 million industry, there was Rigaud. Back in the 1950s, when American homes likely smelled of Dad’s cigarettes and Mom’s pot roast, there was Rigaud. And today, when fine interiors can contain a whiff of citrus or Fraser fir, the Rigaud candle in its original cypres scent is still the standard. The original, with its simple silver-tone snuffer lid, is $105 at Gump’s San Francisco. Smaller sizes are $40 and $75.