Steam Vents #257 from Guilds of Ravnica is a rare card that currently sells for about $11.75 ungraded and around $79.99 at grade 10. A grade 10 copy sells for around $79.99, about 6.8× the $11.75 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Steam Vents
Grade
Market Price
vs Raw
💎 10
$79.99
6.8×
Raw (ungraded)
$11.75
1×
Worth grading? A grade 10 copy sells for around $79.99, about 6.8× the $11.75 raw price, so high-grade copies are worth grading.