Hello Kitty, the mouthless cat turned global icon of cuteness, has gone platinum with a gem-studded miniature priced at $163 000.The 590g miniature of the feminine feline is made of platinum and comes with seven hair ribbons made of gems including diamond, ruby, pink sapphire, amethyst and blue topaz, Hello Kitty's maker Sanrio said Friday.The figurine comes with a price tag of ¥18,9-million -- a record high in Hello Kitty's extensive line-up.Only one set is available, which will go on sale Tuesday for the holiday shopping season at the Mitsukoshi department store in Tokyo.Sanrio designer Ikuko Shimizu launched Hello Kitty in 1974 as a moon-faced cartoon cat on a coin purse.It has since emerged into a global phenomenon with more than 50,000 different products on sale along with an upcoming feature film and animated television series.