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What stands out

PSA population larger than 87% of its price band ($16 to $32).

Reference class: its price band ($16 to $32). Percentiles are recomputed nightly, by disclosed rule, from recorded data across every tracked card.

01The verdict block6 readings

What the fixed formulas say about the figures below, with the arithmetic shown.

Assay

Supportive2Caution1Context2Neutral1

Each stamp is one fixed formula applied identically to every card. Supportive and caution mark a reading that cuts the same way for anyone holding the card. Context marks a fact that is good news to a buyer and bad news to a holder, so the desk does not pick a side.

LiquidityNeutral

TRADEABLE

Verified sales a week at PSA 10, from the daily graded tape.

Registry inflowContext

STEADY INFLOW

New slabs a week against the recorded PSA population.

Market floatContext

NORMAL LISTED FLOAT

Active raw listings divided by the PSA population.

Gem-rate driftSupportive

GEMMING HARDER

The recent gem share against the rate at the window start.

Grading EVCaution

EV NEGATIVE

Every verdict is a disclosed formula over recorded data, applied with the same fixed thresholds to every card. No discretionary price forecasting is used, and the arithmetic is printed so it can be reproduced.

moonstone Pro

The full Giovanni's Persian dossier is sealed

Pro breaks the seal on our call: a stamped buy, hold, or sell and a fair value on every rated card, each a disclosed formula over recorded data. Below is every section this dossier is holding back.

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3 days free, then $9.99 a month. Cancel any time before the free days end and you are not charged. Payments are handled by Stripe.

What this dossier is holding7 sealed sections

02
The call
The rating was refused on this card November 2, 2026 and the refusal states its reason; members read why in full.
03
The tape · verified sold medians
4 grades carry a verified sold median on this card, each with its sample size. Comps through November 2, 2026.
04
The registry
9 daily PSA population snapshots on file, 68 days of continuous history, drawn as a growth curve.

Giovanni's Persian Challenge from the Darkness Market Report