The 2018 1/2 oz American Gold Eagle MS-70 NGC (Mike Castle) is a certified gold bullion coin struck by the United States Mint. Each coin contains ½ troy ounce of gold and is minted in durable 22-karat (.9167 fine) gold, alloyed with copper and silver to enhance strength while maintaining its full precious metal content.
This coin has been graded Mint State-70 (MS-70) by the Numismatic Guaranty Company, the highest grade possible for a business-strike coin. An MS-70 grade indicates a perfect specimen with flawless surfaces and full mint luster, showing no imperfections under 5× magnification.
The holder features the Mike Castle signature label. Michael Castle was instrumental in the creation of the American Gold Eagle program through the Gold Bullion Coin Act of 1985, making his signature labels especially meaningful for collectors of this series.
The obverse displays Augustus Saint-Gaudens’ iconic Lady Liberty design, widely regarded as one of the most beautiful motifs in American coinage. The reverse features the classic American Gold Eagle family of eagles design by Miley Busiek, used on the series from 1986 through mid-2021.
Each coin carries a $25 face value and is fully backed by the United States government for weight and purity. The coin is encapsulated in a secure NGC certification holder, ensuring authenticity and long-term preservation.
Key Highlights
Year: 2018
Grade: MS-70 (Perfect Mint State)
Signature Label: Mike Castle
Grading Service: NGC
Metal Content: ½ Troy oz Gold
Purity: .9167 Fine Gold (22K)
Face Value: $25 USD
Encapsulation: NGC Certified Holder
Government Guaranteed Weight & Purity
The 2018 ½ oz American Gold Eagle MS-70 NGC (Mike Castle) combines flawless certification, historical significance through the Castle signature label, and the enduring beauty of the American Gold Eagle series—making it a desirable piece for modern coin collectors and investors.
