I did some research:
JSA offers a "Basic Certification" service for $20-30. Looking up the player by name, I find that Kobe Bryant signatures are at the high end, $30. For an additional $10, they send it to BGS for encapsulation and card grading. I think autograph grading would be another $10 on top of that. Lastly, return shipping is $13, and insurance is $7. So the total is $60! ($70 with autograph grade)
PSA offers a "Autographed Card Grading and Authentication" service for $25, which I think is grading of the card, not the autograph. For autograph grading, the fee is $10, however because it is a Kobe signature I think the fee is actually $25. The return postage would be $17.50. So the total is $42.50. ($67.50 with autograph grade).
JSA offers a "Basic Certification" service for $20-30. Looking up the player by name, I find that Kobe Bryant signatures are at the high end, $30. For an additional $10, they send it to BGS for encapsulation and card grading. I think autograph grading would be another $10 on top of that. Lastly, return shipping is $13, and insurance is $7. So the total is $60! ($70 with autograph grade)
PSA offers a "Autographed Card Grading and Authentication" service for $25, which I think is grading of the card, not the autograph. For autograph grading, the fee is $10, however because it is a Kobe signature I think the fee is actually $25. The return postage would be $17.50. So the total is $42.50. ($67.50 with autograph grade).