Yes, if it is graded. Enter the certification number and both numbers appear straight away, computed from the market comparable published today: 70% of it in cash, or 77% as credit toward another card. The credit number is larger because credit costs us less than money does. Send three photographs — front, back and the label — and a person confirms it.
If you bought the card here, do not use this route — the Harmony Buyback pays 85% of the comparable on anything from your own order history, and it needs no photographs because we already hold the record.
Accepting the offer charges you the difference between that credit and the price of the card you want. That charge is what reserves the card: it comes off the market, in your name, for 10 days. Then you ship yours with the prepaid insured label we send, we confirm the slab is genuine and matches its certification, the credit applies, and your new card ships within 48 hours.
The offer only moves if the slab does not match its certification — which would mean it is not the card you described.