Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.
NM-Mint - $1.80
Lightly Played - $1.70
Moderately Played - $1.50
Heavily Played - $1.30
Damaged - $0.90
NM-Mint Non English - $1.80
Lightly Played Non English - $1.70
Moderately Played Non English - $1.50
Heavily Played Non English - $1.30
Damaged Non English - $0.90