I love a good cardigan. Especially one that is worn as a top.
This is the Striped Button-Down Cashmere Cardigan by Lafayette 148 New York. Price tag: $898.00. Details: Approximately 28 1/2-inches from shoulder to hem, cashmere, v neck, button front, long sleeves, relaxed fit, unlined, dry clean.
The striped knits are easy to come by but the cashmere striped knit is not. Just grab your striped knit combo and make it. Here is a perfect pattern:
This is the Itch to Stitch Foz Top pdf pattern. The main difference between the inspiration photo and the Foz is the Foz has a slimmer fit. So you would need to account for that unless that is the fit that you prefer.