Grading Trends
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30-day & 52-week trends (set, player, parallel)
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Standard pop and replay can be found
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Updated: 2026-03-12
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1980 Topps
Basketball
View Set Trend
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Overall Summary
Total Gems
Total Grades
Gem Rate
4,670
74,780
6%
*Past 30-Day Trends*
Graded
Past 30 Days
Graded
Prior 30 Days
Momentum
Past 30 Days
Gem Rate
375
289
arrow_upward
29%
0%
Top Players - All Time
Player
Gems
Total
Gem %
Scoring Leader
552
26,599
2.1%
Rebounding Leader
703
13,495
5.2%
John Long/Magic Johnson/Ron Boone
59
3,631
1.6%
Jan Van Breda Kolff/Julius Erving/Magic Johnson
22
3,368
0.7%
Assist Leader
392
2,486
15.8%
Top Players - Past 30 Days
Player
Gems
Total
Gem %
Scoring Leader
1
137
0.7%
Rebounding Leader
0
63
0.0%
John Long/Magic Johnson/Ron Boone
0
29
0.0%
Magic Johnson/Maurice Cheeks/Ron Boone
0
16
0.0%
Assist Leader
0
15
0.0%
Top Parallels - All-Time
Parallel
Gems
Total
Gem %
Bird,Erving,Johnson
24
17,827
0.1%
Base
537
13,725
3.9%
S.May,L.Bird,J.Sikma
107
3,965
2.7%
Brown,Bird,Brewer
58
3,497
1.7%
Bird,Cartwright,Drew
32
3,341
1.0%
Top Parallels - Past 30 Days
Parallel
Gems
Total
Gem %
Bird,Erving,Johnson
0
97
0.0%
Base
0
78
0.0%
S.May,L.Bird,J.Sikma
0
17
0.0%
Brown,Bird,Brewer
0
17
0.0%
Bird,Cartwright,Drew
0
16
0.0%
Grade Distribution
Past 52 Week Grading Trend
Weekly Average:
81
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