Cream-colored cable-knit sleeveless v-neck cardigan vest with brass(?) buttons

Never worn. Drapes like a charm. 100% cashmere cardigan sweater by JCrew. Has a v-neck and no sleeves. Wear on its own for some sex appeal or as a vest with a shirt underneath. Lovely buttons have a pattern that looks like a crest and they are brass-color (not sure what they’re made of). Size medium but fits more like a small.