[1] It was founded by CEO/COO Roger Raffee and Jim Hall, and based in La Jolla, California, United States.
Between 1996 and 2001, GEMM was the largest online music marketplace, with a sales and revenue yearly growth rate of 100% and 11 employees.
[1] By 2002, the site's inventory had grown from 250,000 to 16 million items.
[1][2] Similarly to trading sites such as eBay, GEMM included a five-star vendor rating system based on buyer feedback, as well as advanced search features and custom user want-lists.
[6] GEMM filed for bankruptcy and ceased business operations effective July 8, 2015.