Neil Diamond | Diamond Jubilee | Jared Diamond | diamond | Lou Diamond Phillips | Diamond Jubilee of Elizabeth II | Diamond Head | Diamond | Richard Diamond, Private Detective | Final Cut Pro | Diamond Firetail | King Diamond | Diamond Challenge Sculls | Diamond Jim Brady | Diamond Head (band) | Diamond D | Cut Copy | Shine On You Crazy Diamond | Pokémon Diamond and Pearl | ''Pokémon Diamond'' and ''Pearl'' | Patrick Diamond | In the Cut | Diamond Head, Hawaii | Wendy Diamond | Ultimate Diamond | The Cut | My Brightest Diamond | Lavender Diamond | King Diamond (band) | Diamond Geezer |
He also wrote the screenplay for the 1932 film comedy Diamond Cut Diamond and the story for the 1942 film about Amy Johnson, They Flew Alone.
In addition to song writing, Thomas composed three larger works; The Picnic (1869), a children's operetta with a libretto by George Cooper; The Lady in the Mask (1870), an operetta with a libretto by George Cooper; and Diamond Cut Diamond (1876), a parlor opera in one act.