Grading prices are determined by the value of the coin. For instance, depending on the business of your choice, current coins with a maximum value of $300 will cost between $17 and $22. Coins with a maximum value of $10,000 can be graded from $65 to $80. Of course, you need to figure in postage and insurance expenses both going and coming. So it isn’t cheap to have a coin graded by one of the major coin grading services.