藏品 (cáng pǐn) is a general term for any item kept in a collection, such as stamps, coins, or art — it does not imply historical or national importance. In contrast, 文物 (wén wù) specifically refers to cultural relics with historical value, and 国宝 (guó bǎo) denotes a national treasure of exceptional rarity. 珍藏 (zhēn cáng) as a noun emphasizes items that are personally treasured and carefully stored.