2021 Panini Mosaic Seth Williams Yellow Reactive Mosaic Prizm Rookie #240
Seth Williams · Panini · Rookie Card (RC), Parallel, Prizm
Player
Seth Williams
Set
2021 Panini Mosaic Football
Year
2021
Card #
#240
Condition Grade
PSA 8 (NM-MT) - Estimated. The card shows decent centering but common Mosaic issues like surface dimples and minor edge chipping on the rear are likely.
Category
Rookie Card (RC), Parallel, Prizm
Manufacturer
Panini
Demand Level
Low. Williams is currently a journeyman/practice squad player. Demand is limited to Broncos completionist collectors or Auburn University alumni.
Valuation
Raw (Ungraded) Value
$1.00 - $3.00
Graded Value
PSA 8: $8-12, PSA 9: $15-20, PSA 10: $35-45 (Note: Grading cost likely exceeds card value)
Comparable Sales
Recent raw sales for 2021 Mosaic Yellow Reactive rookies of similar-tier players range from $0.99 to $2.50 plus shipping. Graded 10s for non-star rookies in this set rarely exceed $40.
Description
This is a 2021 Panini Mosaic Seth Williams Rookie Card featuring the eye-catching Yellow Reactive Mosaic Prizm parallel, exclusive to Mega Boxes. The card depicts Williams in his Denver Broncos home orange jersey catching a football. It features the iconic Mosaic background with a vibrant yellow/gold geometric pattern that reflects light with a 'prizm' effect. Includes the RC shield in the upper left corner and the Denver Broncos logo in the lower right.
Key Features
Features the 'RC' rookie card shield; Yellow Reactive Mosaic parallel is a retail-exclusive short print; Seth Williams was a 6th round draft pick for the Broncos.
Authenticity Indicators
Confidence: High. Features correct Panini Mosaic chrome-stock thickness, crisp typography, and the distinct light-refraction pattern unique to the Reactive Yellow parallel. Not a high-risk card for counterfeiting due to current market value.
Flaws to Note
Initial observation suggests slight top-to-bottom centering bias. Mosaic cards from 2021 often suffer from 'surface dimples' (small circular indentations) and slight chipping along the dark bottom borders on the reverse side.
Selling Guide
Where to Sell
eBay (as a 'Buy It Now' or part of a player lot) or COMC (Check Out My Cards). This is an ideal candidate for a 'PWE' (Plain White Envelope) sale on eBay to minimize shipping costs relative to card value.
Selling Tips
Do not grade this card; the grading fee will be significantly higher than the market value of a PSA 10. List using the 'eBay Standard Envelope' for $0.60 - $1.00 shipping to attract buyers looking for cheap rookie parallels. Include 'Broncos RC' and 'Auburn' in the title.