Google started out with a cottony (dull) black coat and his fur came in a soft, shiny silver with gold at his ears and a mix of silver/black on his body, which looks like a shiny grey. He's only 10 months old but teh grey makes him look a like a little old man.
I think the color combination is pretty, and often get remarks on how good-looking he is because of it, it's a very distinctive color combination. When my Yorkie meetup went to the Early Show last week, the cameraman thought he looked so cute he zoomed in on Google so he got his national TV debut and all he had to do was sit there in his pretty silver/gold/grey coat! Don't worry about that color combination, it makes for a beautiful Yorkie!