Hatched from a Common Egg back in Season 1, Cat is one of the oldest common pets still in the game. Looks plain compared to newer releases, but that's part of the charm — it's easy to get and easy to trade. Stable enough to pick up cheap, though there's little reason to chase it unless you're filling out an early collection or need a filler in a trade.
Cat (2019) is a Common pet in Murder Mystery 2. Its combined value is 0.11, #163 of 335 common items and #881 of 921 valued items overall. Demand is very low: it sits in inventories for a while, and buyers often ask for a discount.
Closest in value: 8bit (0.11), Aqua (0.11), Big Kill (0.11). Use them as a benchmark for a fair one-for-one trade.
Value history
What it is worth in other items
How many of each item equal one Cat (2019) by value. Demand differs between items, so check it before you trade.