Because it's been professionally graded, it could be worth a few dollars. Being that it's only a 1978-D half dollar, it's not an especially valuable coin.
Current retail value for a MS-67 example is over $20,000.00
Currently they are worth around $78.85. Keep in mind you probably won't get this amount when you sell it to a collector or coin shop.
A 1880-S Morgan Silver Dollar that is in a mint state of MS67 is worth: $ 450.00.
Average retail values of a certified MS-67 example is $70.00-$80.00.
5-29-11>> MS60(mint state)...................$6 MS63......................................$7 MS65......................................$11 MS67.......................................$55 MS68.......................................$450 1999D MS60.......................$6 MS63.......................$9 MS65.......................$11 MS67.......................$45 MS68.......................$1450
1964-p -ms67, $13,500; 1962-p - ms68, $10,000; 1961-p - ms67, $8,500; 1962-d - ms67, $8,500; 1963-p - ms57, $8,500;
July 10, 2009 A circulated 1954-S Washington quarter is worth $6-$7 Uncirculated coins are worth $8 in MS60, $10 in MS63, $13 in MS64, $25 in MS65, $65 in MS66, $1800 in MS67.
MS67 is a really, really nice coin. 70 is the highest you can get and there really aren't many. The coins in your pocket are probably 5 or 10 out of 70. Maybe 20 if one is really nice.
Only if the coin has a certified grade retail values are MS-65 $5,060.00/ MS-66 $13,840.00/ MS-67$48,600.00
August 15, 2009 The circulated and uncirculated values for the 1885-S Half Eagle are shown in the following list: Circulated Grades.........1885-S VF30................................$335 EF40................................$345 AU55................................$375 Uncirculated GradesMS60................................$465 MS62................................$600 MS63................................$1,500 MS64................................$2,300 MS65................................$6,500 MS66................................$12,500 MS67................................$30,000
August 9, 2009 The 1998-D Kennedy half dollar is still available in circulation. So in circulated grades it has a value of 50 cents. The uncirculated values are shown in the following list. Uncirculated Grades...........1998-D MS60...................................$6 MS63...................................$8 MS64...................................$9 MS65...................................$11 MS66...................................$42 MS67...................................$150 MS68...................................$2,500
MS67 refers to a specific grade in the Sheldon scale used to assess the condition of coins, where "MS" stands for "Mint State," indicating that the coin has not been circulated and retains its original mint luster. The number 67 signifies a high level of quality, suggesting that the coin has only minor imperfections, if any, visible under magnification. Coins graded MS67 are considered to be of exceptional quality and are highly sought after by collectors.