yeah really! Prices on ebay are $350+
Malleries has a pink one in size 4.5 (ha!) for $195: http://www.malleries.com/tiffany-amp-co-pink-enamel-amp-sterling-signature-ring-i-64296-s-2650.html
Unfortunately they don't have the blue ring, only the bangle, which is going for $655: http://www.malleries.com/tiffany-am...gnature-x-bangle-bracelet-i-58897-s-2650.html