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GemDelta helps research raw Pokemon cards by showing four measured facts: Price, PSA 10, Gem rate, and Availability. The dashboard ranks by raw-to-PSA10 Delta plus Availability so large deltas do not outrank cards that actually trade.

The dashboard intro explains Dashboard, paid Crack & Repair, paid Sealed, paid Supply Watch, then the dashboard controls and plan prompt. When a full-data card is visible, the example reads that row's already-loaded Price, PSA 10, Delta, Gem rate, and Availability rather than inventing values.

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Market price

The resolved card acquisition price: TCGplayer market when available, otherwise PriceCharting raw/eBay-sold fallback.

PSA 10

The price reference for what the card could sell for if it grades a 10. It is a ceiling input, not an expected outcome.

Gem rate

How often this exact card has actually come back a PSA 10, from real population data. Blank means we don't have enough data and we won't guess.

PriceCharting raw

What an ungraded copy can resell for when we are looking at raw resale instead of buy cost.

TCGplayer market

TCGplayer's market reference for the matched card or sealed product.

PriceCharting

PriceCharting guide or sold-comps data, usually derived from eBay sold activity.

Delta

The multiple between Price and PSA 10. A larger multiple means a PSA 10 sells for more relative to raw.

Supply change

How measured supply changed since the prior scan. This is supply movement, not the raw-to-PSA 10 Delta metric.

Availability

A 1-10 age-adjusted score for how fast sellable raw copies actually move. The G marker is separate graded sales; a dash there means insufficient graded sales data, not zero demand.

In stock

How many Near Mint copies TCGplayer showed as buyable on the latest measured supply day. Unknown means no supply data; zero means measured none.

Graded copies

The total number of graded copies in the population report.

PSA 10 copies

The number of graded copies with a PSA 10 grade.

Sales per year

Annualized sales activity from the available sold-side data.

Recent sales

The count or list of sold comps in the recent window shown on the surface.

Delta is the multiple between Price and PSA 10. If a raw card is $20 and a PSA 10 is $200, the Delta is 10x. Delta is a factual difference, not a prediction that any one raw copy will become a PSA 10.

The default dashboard sort compresses Delta onto a 1-10 log scale before adding Availability. That means a huge obscure multiple can top out instead of overwhelming cards with steadier sell-side activity.

Availability is the 1-10 score for how fast sellable raw copies actually move. It starts with raw annualized sales when the source exposes them, raw completed-sales count in the recent sales window, and broad yearly sales as fallback, then age-adjusts that flow before the log2 curve. Older cards need much stronger measured flow to avoid damaged-copy churn reading like Near Mint sellability.

A 10 means roughly multiple sellable raw sales per day after adjustment. A 1 means measured near-zero raw flow. Blank means the raw availability signal was not measured.

Graded sales are separate and appear as the compact G value where space allows. It uses the best graded annualized sales rate, primarily PSA 10, only after at least three graded sales per year are visible in the source. Below that threshold the graded state is a placeholder: not enough recent graded sales to measure. That placeholder is never zero and never lowers the raw score.

Availability and In stock are separate. Availability is age-adjusted sell-side movement. In stock is buy-side supply from measured TCGplayer Near Mint listings. In-stock data may be unknown even when availability is known, and unknown still does not mean zero.

The dashboard reads precomputed CardScore facts. Price is the raw buy-side reference. PSA 10 is the graded sell-side reference. Delta is PSA 10 divided by Price. Gem rate is the measured PSA 10 share from graded-copies data. Availability is the 1-10 age-adjusted raw movement score, with graded sales shown as a separate G state.

• PriceCharting provides eBay-sold raw references and graded guide/sales data.
• TCGplayer provides card market prices, Near Mint supply, seller depth, and sealed-product supply.
• GemRate and PSA graded-copies data provide the measured gem rate and graded-copies counts.
• eBay feeds live listing checks for sealed cases and regrade/crack-repair opportunities.

PSA 10 uses dated sold comps inside a 45-day effective window when they exist. If no PSA 10 comp is inside that window, scoring may use PriceCharting's published PSA 10 guide value for the grade. In this codebase that fallback is a sales-backed guide value, not an estimate warning; the difference is recency.

Graded-copies data follows a flat 30-day floor per card, so the practical rhythm is about monthly. A scheduled run should not spend GemRate or PSA work on the same card more frequently unless a human explicitly forces it.

Crack & Repair is for graded slabs that may be worth cracking, repairing, or regrading when the delta dollars between the current slab and a stronger outcome is large enough to inspect.

Sealed tracks sealed cases from eBay and also has a TCGplayer sealed-product supply view in the codebase. It is a paid board; Supply Watch also stays paid because it scans per-user lists.

Your watchlist is the private list of cards you want to track. Your collection is your private owned-card inventory. Anonymous visitors can browse public boards, but watchlist and collection data are scoped to your signed-in account.

This section is generated from the RBAC feature table. Admin tools are operational controls, not a public plan.

raw

An ungraded card, usually bought as a single.

slab

A graded card sealed in a grader's plastic holder.

Gem rate

The measured share of graded copies that came back a PSA 10.

pop

Slang for graded copies: how many copies a grading company has recorded at each grade.

PSA

Professional Sports Authenticator, one of the graders used for population and price references.

CGC

Certified Guaranty Company, another grading company used on regrade and price checks.

TAG

Technical Authentication & Grading, used by the crack/repair flow when a listing exposes a TAG report.

reverse holo

A printing where the card body is foil instead of the artwork window.

1st edition

An older print marker that can change identity, price, and population data.

NM

Near Mint, the TCGplayer condition GemDelta uses for raw buy and supply checks.

PSA 10

The gem-mint grade used as the PSA 10 resale outcome on the dashboard.

GemDelta gives estimates from historical data. Grading outcomes are uncertain, prices move, supply changes, and one card can do the opposite of the average. Nothing here is financial advice.