Diesel Bad Cologne by Diesel, The rose gold and black bottle isn't the only unique thing about this fragrance. Launched in 2016, Diesel Bad's masculine scent is sophisticated and daring.The bottle may look "bad," but the aroma is all good. This long-lasting scent is moderate to heavy but not overwhelming. Launched in Italy in the late 1970s, Diesel is a unisex fashion brand known for denim, accessories, fragrances and much more. The company, which is now under parent company L'Oreal, has products in more than 5,000 stores around the world. It released its first fragrance in the late 1990s and since then, has launched 41 different men's, women's and unisex scents. Some of the noses behind the aromas include Annick Menardo, Nicolas Beaulieu and Pierre Wargnye.