Both the variants are currently listed on Amazon US, which is selling them for $450. If you compare, this is $100 more than what the regular Classic model officially costs in the US - Amazon is currently selling it for $319 though.
However, what's worth mentioning here is that you won't get these new variants anytime soon as the retailer has mentioned a shipping time-frame of 1 to 2 months. A quick look at Samsung's official US website reveals that the company will officially start selling Rose Gold and Platinum models in the country sometime next month.
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