acetone, allophone, anemone, anklebone, anticyclone, argonne, backbone, baritone, bloodstone, bluestone, brownstone, capstone, chaperone, cheekbone, cherrystone, cicerone, cobblestone, collarbone, cornerstone, cortisone.
Your query has returned 176 words, which include anagrams of gemstone as well as other shorter words that can be made using the letters included in gemstone.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.