Kering SA (OTCPK:PPRUF, OTCPK:PPRUY) continued a series of strong results from the world's top luxury brands, reporting record earnings for FY 2018. Expectations were high, but Kering still managed to exceed them, as Gucci's performance continued unabated.Gucci has been a resounding success under the leadership of creative director Alessandro Michele. Its growth has made it by far the main contributor to Kering's earnings, to the extent that an investment in Kering is now effectively an investment in Gucci. The investment case goes down to one's degree of confidence in Gucci's prospects. Though