1999 Black Diamond
Each base card is available in one of three "Diamond" parallels: Double, Triple, and Quadruple. Each is serial-numbered to the following production figures EXCEPT the cards of Sammy Sosa, Ken Griffey, Jr., and Mark McGwire.
Double (Red foil): short set, 3000; Debuts, 2500
Triple (Yellow foil): short set, 1500; Debuts, 1000
Quadruple (Green foil): short set, 150; Debuts, 100
For Sosa, Griffey, and McGwire their Double, Triple, and Quadruple Diamond parallels are as follows.
Double (serial-numbered to 1998)
Triple (Sosa: 273 copies, Griffey: 350, McGwire: 457)
Quadruple (Sosa: 66 copies, Griffey: 56, McGwire: 70)
The Triple Diamonds were serial-numbered to their career home run total after the 1998 season. The Quadruple Diamonds were numbered to their 1998 season home run total.
