A 10-carat diamond ring with round cut and emerald cut diamonds embedded in 14k yellow gold and presented by Elvis Presley to a fan during his concert in 1975, will be auctioned next month at Tallahassee in Florida, reports say. The name of the fan as reported is Lloyd Perry, with whom Elvis Presley shook hands and removed his diamond ring and gave it during the concert. %% Perry has gathered a complete file of provenance and will present the same at the time of the sale, to prove the authenticity of the Elvis Presley gift, reports say.