1921 Morgan Silver Dollar is valuable based on the Silver Dollar status and mint mark. Since millions were produced, operated coins are around $ 20- $ 50, mainly for their silver content. Especially with sharp details, uncontrolled examples, can get $ 100 or more. Special varieties, such as errors or proofs such as versions, can also command higher prices. Collectors prefer coins classified by PCG or NGC, as high grades can significantly increase their market value.