Map for East Tennessee Diamond Company Map for East Tennessee Diamond Company Search | Advanced Search | New Members | Coupons and Discounts | All Categories Shopping & Specialty Retail >> Jeweler East Tennessee Diamond Company 149 West Main StreetMorristown, TN 37814 | directions (423) 587-6893 | fax: (423) 587-5341 Visit Site If your business isn't here and you are a Jefferson County Chamber Member or want to become a Jefferson County Chamber Member, please contact us today!