The Ungraded Onix #212 from Start Deck 100 (Japanese) has a median market value of $10.51, based on 2 recent graded sales. See the full price history and live chart on the Onix #212 card page.
The Ungraded Onix #212 from Start Deck 100 (Japanese) has a median market value of $10.51, with recent sales ranging $10.51 to $40.66 — based on 2 recent graded sales.
Where do PokéTT's Ungraded prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the Ungraded grade — not a single outlier sale — so the mark reflects the true market.