See bottom of post for update.
This silk blazer from Rebecca Minkoff comes in a ton of colors and retails for $348 at Singer 22.
Saving you a bit of cash (180 bucks to be exact), this Free People silk blazer will give you a similar style for $168. Click on the image below if you're interested in purchasing, also available in blue.
*Update - 2/29/12* - This blazer from Tinley Road (available in pink, black, or white) is also similar in style to the Becky jacket and retails for $69. You can click on the image below if you're interested in purchasing or to view the other color options.