Today only Banana Republic has 40% off any one regular-priced item with code BWJBJZ2PVGJD (the discount applies to the one highest-priced item you purchase).
That means you could get this Princess Ring for
$23.70 + $7 S&H + tax ($2.69 in Orange County or $2.99 in Los Angeles) == $33.39 or $33.69. Is it worth 33 bucks to feel like a princess? If not, you can buy the Sunset Ring for $29.7 und so weiter.