EX-23.1 4 0004.txt CONSENT OF DELOITTE & TOUCHE LLP Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 333-43613 of C3, Inc. on Form S-8 of our report dated February 22, 2001, appearing in the Annual Report on Form 10-K of Charles & Colvard, Ltd. (formerly C3, Inc.) for the year ended December 31, 2000. /s/ DELOITTE & TOUCHE LLP Raleigh, North Carolina February 26, 2001