EXHIBIT 5 HART & HART, LLC ATTORNEYS AT LAW 1624 Washington Street Denver, CO 80203 William T. Hart, P.C. ________ harttrinen@aol.com Will Hart (303) 839-0061 Fax: (303) 839-5414 February 1, 2017 The Diamond Cartel, Inc. 28 Banting Crescent London, Ontario Canada N6G 4G2 This letter will constitute an opinion upon the legality of the sale by certain selling shareholders of the Diamond Cartel, Inc., a Delaware corporation (the "Company"), of up to 895,750 shares of common stock, all as referred to in the Registration Statement on Form S-1 filed by the Company with the Securities and Exchange Commission. We have examined the Articles of Incorporation, the Bylaws, and the minutes of the Board of Directors of the Company, the applicable laws of the State of Delaware, and a copy of the Registration Statement. In our opinion, the Company was authorized to issue the shares of common stock held by the selling shareholders and such shares were validly issued and represent fully paid and non-assessable shares of the Company's common stock. Very truly yours, HART & HART, LLC /s/ William T. Hart William T. Hart