The market value of a MS-70 (perfect) certified coin depends on the company that did the certification. ANACS has lost a lot of it's credibility since it was sold to ICG and is not quite as highly regarded as they use to be. I hate to say this, but check e-Bay for past sales for an idea of value. Or take it to as many coin dealers as you can.
A 2002 silver eagle is worth whatever one ounce of silver is worth. At the time of writing, an ounce of silver is worth about $22 and a silver eagle would be worth the same. However, silver fluctuates in price on a minute to minute basis.
What is the Great American Eagle by Gilroy Roberts Worth in Silver
A 1 pound Silver Eagle is worth about $200.
A 1986P American Silver Eagle in uncirculated condition is worth about $20. If proof 1986S, it is worth about $40.
"Colorized silver eagles" do not exist.
It will be worth the value of silver per ounce. Currently about 30 dollars.
As of 9 May 2013, it's worth $24.
$2300
Silver spot price = about $14/oz
A "colorized" silver eagle has no numismatic collectible value, but it's still one ounce of silver that's worth about $30.00.
3-19-12>> It is worth its silver content of around $30.
You are probably asking about American Eagle silver dollars. These are worth about the spot price of silver. Currently they are worth about $32.