G Coin Digital Gold NEW! Buy & Sell Digital Gold from G-Coin with Cash G-Coin available at participating MoneyGram locations.* Buy G-Coin with Cash : MoneyGram Partnership - Blog.MoneyGram.com Discover the MoneyGram G-Coin partnership. Buy and sell G-Coin with cash easily. Enter the world of digital gold saving today! Yes We're so excited to tell you about our new partnership with G-Coin. G-Coin is digital gold - it's a title of ownership to one gram (or a fraction of one gram) of a gold kilobar, stored in a licensed vault. This new partnership lets you buy and sell G-Coin with cash