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Red Diamond Pro · Card import

Your collection, priced.

Card import is a Pro feature.

Every card and duplicate count you own, with what it’s worth and what to do with it — manual and user-initiated, you click every step.

Join Pro — $5.99/mo cancel anytime · already Pro? Sign in

your best three, after your first import

  1. STEP 1

    Install the extension

    One click from the Chrome Web Store — works in Chrome, Edge and Brave, and it does nothing until you tell it to. Pin the diamond icon so it’s one click away.

    Add to Chrome — free

    Prefer a manual install? Download the extension and load it unpacked.

  2. STEP 2

    Prepare your cards

    Sign in at mlb26.theshow.com, open Inventory, then click the extension’s diamond icon → Prepare card inventory. Only cards you own are read — your Ownership and Type filters don’t affect the result.

  3. STEP 3

    Confirm and import

    Accept the consent on the import page — the only step that sends anything to Diamond Pulse. Then the Inventory Dashboard has duplicates, sellable value, liquid stubs, and a ranked action for every card.

We read only a hashed catalog key, item type, and quantity per card — it expires from tab memory in 5 minutes Never names · prices · stubs · cookies · credentials

Re-import anytime; delete or export your data from the import page. Manual browser-extension import — not live sync, automatic sync, or an official MLB, Sony, San Diego Studio, or PlayStation integration.