The PSA 10 price gap on NBA Prizm rookies, with the sums done

By CardPop Research Team — 2026-08-06 · 8 min read

Across CardPop's snapshots to 4 August 2026, the graded premium on five tracked Prizm rookies ran from 1.6x to a meaningless 56x. Once an Australian submission's real cost comes out — postage both ways, extra cover, the FX spread — only one of the five clears the bar with room to spare.

On 4 August 2026, an average raw Luka Dončić 2018-19 Prizm rookie was listed at AUD $159.75 across eight listings. An average graded copy was AUD $463.74 across seventeen. That is a PSA 10 price gap of $303.99, and it is the widest defensible one in CardPop's five tracked Prizm rookies. Most of the others do not survive the arithmetic once you subtract what it actually costs to get a card from an Australian letterbox to Santa Ana and back.

This piece does that subtraction. All price figures below come from CardPop's daily eBay AU/US snapshots over the window 4 July to 4 August 2026, 31 observations per card. The cost figures are my own working, marked as assumptions, and you should re-run them against whatever PSA and Australia Post are charging on the day you submit.

What the PSA 10 price gap looks like on five Prizm rookies

Two of those rows are already unusable, and it is worth being blunt about why before anyone plans a submission around them.

The Edwards 56x is noise. Four graded listings, a minimum of $76.36 and a maximum of $18,588.57. That spread does not describe a base Prizm rookie in a PSA 10 slab. It describes a pool containing at least one high-end parallel or autograph and at least one low-grade copy that sold for less than the average raw listing at $87.58. You cannot budget against a four-listing average with a 243x internal range. I would not try.

Cooper Flagg has no graded comparison at all. Zero graded listings in the 4 August snapshot. The raw side moved from a window low of $75.60 to $319.06 on 4 August, a 322% change across the window, which tells you the release is being repriced fast and tells you nothing about what a slab fetches. If you send Flagg to PSA right now you are guessing at the sell side.

The graded average is not a PSA 10 average

This matters more than most grading maths admits. CardPop's graded figure tracks graded listings broadly, not PSA 10s in isolation. The minimums prove it. Luka's graded minimum on 4 August was $135.21, below the raw average of $159.75. SGA's graded minimum was $78.65, roughly half the raw average of $144.67. Those are 8s and 9s, possibly a CGC or two, sitting in the same pool as the 10s.

So the real PSA 10 price gap on these cards is wider than the multiples in the table, and the average grade outcome is worse than the multiples imply. Both directions at once. Without a grade-level split in the snapshot data, I cannot tell you how much wider or how much worse. What I can do is treat the graded average as the honest expected value of a submission across a mixed bag of outcomes, which is closer to what actually happens when you send ten raw cards away.

What an Australian submission really costs

Here is the line-by-line for a ten-card batch at PSA's value tier, with a declared value under USD $500 per card. Every number here is an assumption, not snapshot data. Check them.

Call it AUD $55 to $65 per card in a full batch. Send one card on its own and the fixed postage stops being amortised: the same submission costs roughly $175 to $190 for that single card, because you are paying $130 in freight either way. Single-card international submissions almost never make sense on a base Prizm rookie. If you are sending one card, send ten.

There are two more costs people leave out. The first is the sell-side fee. On eBay AU you are handing back roughly 12% to 13% of gross, and that is a percentage of the graded price, which is the bigger number. The second is time. Turnaround on value-tier service plus international freight both ways is measured in months, and the graded price you sold into your spreadsheet may not be there when the slab lands. Our grading guide covers tier selection and declared value in more detail.

Break-even, card by card

The test is simple. You need the graded sale price, minus a 13% marketplace fee, minus $60 in submission cost, to exceed what you paid for the raw card. Written out: break-even graded price = (raw cost + $60) ÷ 0.87.

On the face of it, all three clear. Now the qualifications, in order of how much they hurt.

Wembanyama: the headroom is an illusion

The raw average of $990.29 sits inside a range of $121.55 to $5,210.70 across nine listings. That is not a base rookie market. It is a base rookie priced somewhere near the bottom of that range and a stack of Silvers, colour parallels and numbered cards priced near the top, blended into one average. The graded average of $1,560.03 has the same problem, with a minimum of $299 against a maximum of $5,499.99.

The multiple of 1.6x is the tell. A 1.6x graded premium on a modern rookie is unusually thin, and it is thin because both sides of the ratio are contaminated by parallels rather than because the market has decided a slab adds little. Add the direction of travel: graded fell 27.9% across the window while raw rose 5.3%. A gap that is closing is a gap you do not build a four-month submission plan around. Also, at a declared value near AUD $1,500 you are out of the value tier and into a dearer PSA service, which pushes the per-card cost well above $56.

Verdict: no call. The data cannot separate the base card from the parallels, so the sums cannot be done properly.

Shai Gilgeous-Alexander: $93 of headroom is not enough

The nominal headroom is $93.43 per card. Then remember the graded average includes 8s and 9s, and the graded minimum was $78.65. If a submission comes back a 9 on the softer end of that pool, you have paid $60 to convert a $144.67 raw card into something that sells for less than you started with.

The window direction makes it worse. Graded fell 61.1% from the first observation to the last while raw fell 29.5%. That is the graded premium compressing hard over 32 days on thirteen graded listings. Thirteen listings across a month is not much of a base. The compression could be composition rather than genuine softening.

Verdict: not worth the postage at these numbers. You need $150-plus of headroom before grade risk stops eating the whole margin, and $93 is not that.

Luka Dončić: the one that clears

$211.15 of headroom over break-even is roughly 3.5 times the per-card submission cost. That is the buffer you want, because it means a mediocre grade outcome costs you upside rather than capital. The 2.9x multiple is calculated off seventeen graded listings and eight raw, which is the healthiest listing count in the group.

Two things to hold in mind. Raw fell 45.5% across the window, from a high of $353.82 to $159.75 on 4 August, while graded fell 15%. Read one way, that is exactly when you want to buy raw and grade. Read another way, a 45.5% fall in raw over 32 days is a market moving fast enough that the graded side may follow. The graded minimum of $135.21 remains the floor scenario: a low grade on a card you bought at $159.75, and a total loss of about $85 plus the $60 fee.

Verdict: the one submission of the five I would defend. Buy raw near the $159.75 average or below, in a ten-card batch, on copies you have actually inspected for centring and edge wear.

The pattern underneath

Four of five tracked Prizm rookies either fail the break-even test or cannot be tested with the data available. That ratio is not unusual and it is not pessimism. Grading pays on cards where the graded market is deep, the raw market is cheap relative to it, and the gap is measured in hundreds rather than tens of dollars. Base Prizm rookies of established stars mostly do not qualify, because the population report already has tens of thousands of 10s and the premium has been arbitraged down.

Two practical rules fall out of the sums. First, ignore any graded average built on fewer than about ten listings. The Edwards 56x is what that mistake looks like at full size. Second, insist on headroom of at least three times your per-card cost before you post anything, because the graded average you are modelling includes 8s and 9s you might get instead of the 10 you are picturing.

And if the raw side moved 322% in a month, as Flagg's did, the honest answer is that nobody knows yet what the slab is worth. Wait for the graded listings to appear. They will.