Stephen CurryKeep the holder. Price the crossover decision.
2009–10 Topps · Base rookie
Independent BGS 8.5 reference · different subgrades
Reference BGS 8.5 cert 0009320554; a different copy and different subgrades
Base#321BGS 8.5
PRELIMINARY BGS 8.5 GUIDE · LOW CONFIDENCE
$2,000–$2,500
Preliminary BGS 8.5 guide · low confidence
An editorial starting guide anchored to two June 2026 BGS 8.5 records in market evidence's venue history. Those records are aging, their individual certificates are not disclosed, and the photographed reference has different subgrades. Newer PSA 9 prices are separate context, not an expected crossover gain.
How we arrived at this estimate
A broad editorial BGS 8.5 guide around market evidence's June 15, 2026 venue-history record at $1,999 and June 29 UTC record at $2,310. These are the same issue and holder grade, but the history does not disclose each transaction's certificate or subgrades. The $2,500 upper end is an editorial allowance around that sparse historical evidence, not an observed sale, measured trend, statistical interval or current guaranteed bid. The displayed $3,095 active ask was excluded from the estimate, as were every PSA 9 result and the older February BGS 8.5 record.
Assumptions: Applies to an authentic 2009–10 Topps base Stephen Curry rookie #321 in BGS 8.5 with an intact holder. The submitted card's subgrades are centering 10, corners 8, edges 8.5 and surface 9.5. They differ from the independent reference, and buyers may price those differences differently. Venue-history amounts are not verified seller net proceeds; payment completion, tax, shipping and transaction-specific fees were not established. Current offers may fall outside this low-confidence guide. No PSA grade or chance of crossover is inferred from the photo or subgrades.
For the existing BGS 8.5 holder, $2,000–$2,500 is a low-confidence starting guide grounded in older June venue records. A PSA 9 crossover is a separate decision: PSA evaluates the card in its current holder against your requested minimum, and charges the full grading fee even if it does not cross. Compare a real BGS 8.5 offer with your actual all-in crossover cost before paying for that possibility.
Separate July–August context; different grade and copies
$100example cost
Illustrative all-in cost, not a grading fee quote
Matching sale prices
USD · BGS 8.5
Tap a bar to inspect the record.
$0.00$577.50$1.2k$1.7k$2.3k
Latest record · $2,310 Jun 29, 2026 · UTC · Same issue and BGS 8.5 grade in the venue's sales-history table. Displayed June 28 in the local browser, June 29 UTC. Individual certificate and subgrades are not supplied; do not attribute this row to the photographed reference slab.
Observed prices. This sample does not establish a reliable trend.
The observed spread
2 records
$311.00
$1,999.00LOW$2,310.00HIGH
Every sale is one buyer and one card. More matching sales would make the picture stronger.
Evidence depthSmall sample
FOLLOW THE EVIDENCE
The comps behind the answer.
2 matching records
The chart contains two BGS 8.5 records reported directly in market evidence's venue history. They are not two independently identified slabs, and neither is established as the submitted card. Dates and prices belong to the history rows, not automatically to the reference photo. This small June sample does not establish a September trend or a grade premium.
REPORTED SOLD · MATCHING
$2,310
Same issue and BGS 8.5 grade in the venue's sales-history table. Displayed June 28 in the local browser, June 29 UTC. Individual certificate and subgrades are not supplied; do not attribute this row to the photographed reference slab.
BGS 8.5 · venue-history record
REPORTED SOLD · MATCHING
$1,999
Same issue and BGS 8.5 grade in the venue's sales-history table. The listing headline also says SOLD $1,999, but that does not independently tie this dated history row to its photographed certificate. Individual subgrades and seller net proceeds are not established.
BGS 8.5 · venue-history record
Related evidence · comparison only
The first three entries are newer PSA 9 venue-history records for the same issue, outside the BGS 8.5 guide. Their individual certificates are not disclosed. The remaining entries are illustrative arithmetic and official policy, not sales or a prediction of a grading result. Different grades, dates and physical copies prevent treating the history as a measured crossover gain.
CONTEXT ONLY · PSA 9 · separate venue history
$6,900 reported
PSA 9 venue-history row, displayed August 30 in the local browser and August 31 UTC. Individual certificate and transaction fee basis are not disclosed. Not the undated $2,200 headline copy and not a forecast for the submitted BGS 8.5.
Market evidence
CONTEXT ONLY · PSA 9 · separate venue history
$5,999 reported
PSA 9 category-history record; its certificate is not disclosed. The displayed price is historical venue context, not seller net proceeds or a value assigned to this BGS 8.5 card.
Market evidence
CONTEXT ONLY · PSA 9 · separate venue history
$4,440 reported
PSA 9 category-history record, displayed July 26 locally and July 27 UTC. Different date and undisclosed copy; excluded from the BGS 8.5 estimate and any calculation of a guaranteed grading premium.
Market evidence
CONTEXT ONLY · Illustrative arithmetic · not a sale
$1,914 vs $2,510 net
Hypothetical inputs only: sell in BGS 8.5 for $2,200 gross, or successfully cross and later sell for $3,000 gross; use a 13% selling fee either way and $100 incremental all-in crossover cost. Current-holder net is $2,200 × 0.87 = $1,914. Successful-crossover net is $3,000 × 0.87 − $100 = $2,510, a $596 difference. Neither gross price is a forecast, and $100/13% are illustrative assumptions, not quotes.
Market evidence
CONTEXT ONLY · Illustrative arithmetic · not a sale
$2,314.95 break-even
With those same assumptions, the required crossover gross sale is $2,200 + $100 ÷ 0.87, rounded up to $2,314.95. If the card does not cross and still sells for $2,200 gross, net falls to $1,814 after the assumed cost: $100 below keeping the current holder. This comparison excludes the shared purchase cost and unmodeled taxes; substitute your real offer, full incremental costs and fees. No outcome probabilities are assigned.
Market evidence
CONTEXT ONLY · Official policy · not price evidence
Minimum grade required
PSA evaluates a crossover submission inside its existing holder. Specify the minimum acceptable grade; it crosses only if that minimum is met. Otherwise PSA returns it in the original holder. The full grading fee applies regardless of the result. A minimum of PSA 9 describes the requested threshold, not a prediction that this card meets it. No current fee amount is quoted here.
Market evidence
Primary market evidence pages and the official PSA crossover page were read on September 23, 2026. BGS 8.5 and PSA 9 history rows are category/grade records, not independently linked certificate histories. The BGS page's $1,999 headline is distinct from assigning a date to that pictured slab. The PSA 9 page's SOLD $2,200 headline has no established sale date and is not included as a current comparison. Local and UTC dates are identified where the venue displays both. Payment completion and transaction-specific tax, shipping and fees were not independently established.
What was included and excluded?
Excluded from the guide: a $3,095 active BGS 8.5 ask; a February 2026 BGS 8.5 history record at $1,560; the undated PSA 9 $2,200 headline; older CardFacts aggregates; and an unverified search snippet suggesting a September PSA 9 accepted offer. Topps Chrome, refractors, Gold parallels, reprints and other grading companies are different comparisons. No population, numerical grade prediction, crossover probability or expected appreciation is supplied.
PULL ODDS
A minimum grade is a condition, not an odds forecast.
No print run, pull probability or crossover success rate is established here. BGS subgrades do not convert into a reliable PSA 9 probability. PSA's minimum-grade service explains what happens to the holder if the card does not meet the requested minimum; it does not guarantee the result.
SMALL DETAILS. DIFFERENT CARDS.
Make sure it’s this one.
The question concerns the 2009–10 Topps base Stephen Curry rookie #321 in BGS 8.5, submitted certificate 0011018505. Its visible subgrades are centering 10, corners 8, edges 8.5 and surface 9.5. The independent reference shown here is certificate 0009320554 with centering 9.5, corners 8.5, edges 9 and surface 8. Same issue and overall grade do not make those physical cards interchangeable. This is the regular Topps card, not Topps Chrome.
Player
Stephen Curry
Team
Golden State Warriors
Set
2009–10 Topps
Card number
#321
Parallel
Base
Print run
Not established
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