One Sport, Measured
The Diamond
The deepest history in the hobby, told in cardboard.
Sub-index
1,058.73
An equal-weighted basket of the 17 cards here tracked at one fixed PSA grade (base 1,000). Descriptive, never predictive · based on asking prices, not sale prices — the middle of the range, with the highest and lowest set aside. How this is calculated. Live reading from the engine; updates twice daily.
MM1952
Heirloom 25 · thin market
Mickey Mantle
1952 Topps #311
From$60,000
BR1933
Heirloom 25 · thin market
Babe Ruth
1933 Goudey #144
From$14,250
NR1968
Heirloom 25
Nolan Ryan
1968 Topps #177
From$2,000
WM1951
Heirloom 25 · thin market
Willie Mays
1951 Bowman #305
From$4,631
HA1954
Heirloom 25 · thin market
Hank Aaron
1954 Topps #128
From$2,750
JR1948
Jackie Robinson
1948 Leaf #79
From$13,450
LG1933
Heirloom 25 · thin market
Lou Gehrig
1933 Goudey #160
From$3,855
TW1939
Heirloom 25 · thin market
Ted Williams
1939 Play Ball RC
From$7,350
RC1955
Heirloom 25 · thin market
Roberto Clemente
1955 Topps RC #164
From$1,565
SK1955
Heirloom 25 · thin market
Sandy Koufax
1955 Topps RC #123
From$1,049
KG1989
Heirloom 25
Ken Griffey Jr.
1989 Upper Deck #1 RC
From$1,000
SO2018
Heirloom 25
Shohei Ohtani
2018 Bowman Chrome #1
From$2,300
DJ1993
Derek Jeter
1993 SP Foil RC #279
From$1,000
CR1982
Heirloom 25
Cal Ripken Jr.
1982 Topps Traded #98T
From$2,599
MT2011
Mike Trout
2011 Topps Update #US175
From$1,099
AJ2013
Aaron Judge
2013 Bowman Chrome Draft Prospect Autograph
From$6,500
MS1973
Mike Schmidt
1973 Topps #615
From$1,000
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