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                                                                    EXHIBIT 10.4



                        INDEPENDENT CONTRACTOR AGREEMENT


         THIS INDEPENDENT CONTRACTOR AGREEMENT, made effective as of the 1st day
of May, 1997 by and between C3, INC., a North Carolina corporation (the
"Company"), and Paula K. Berardinelli (the "Contractor").

                                    RECITALS:

         A. The Company is engaged in the business of designing, developing,
manufacturing and selling moissanite gemstones (the "Business").

         B. The Contractor served as Vice President of Sales and Marketing for
the Company but has taken a leave of absence from such position.

         C. The Company wishes the Contractor to continue to assist the Company
in providing marketing and sales, organization and management and other
consulting services for the Business.

         D. The Contractor desires to provide such services to the Company on
the terms and for the compensation set for herein.

         NOW, THEREFORE, the parties hereto agree as follows:

         1. ENGAGEMENT. The Company hereby engages the Contractor as a
nonexclusive contractor to perform the Services (as defined below) subject to
the terms and conditions of this Agreement, and the Contractor hereby accepts
such engagement for and in consideration of the compensation hereinafter
provided and agrees to use his best efforts performing the Services. The
Contractor shall perform her obligations hereunder in compliance with the terms
of this Agreement and any and all applicable laws and regulations. The
Contractor acknowledges that this is a nonexclusive engagement by the Company
and that the Company retains the right to appoint additional contractors as the
Company. in its sole and unrestricted judgment, may from time to time determine
to be in the best interests of the Company without liability or obligation to
the Contractor.

         2. SERVICES.

            (a) The Contractor agrees to provide marketing and sales,
         organization and management and other consulting services for the
         Company and perform other duties related thereto as the Company may
         determine from time to time (the "Services"). The Contractor warrants
         to the Company that the Services will be performed in a professional,
         timely and workmanlike manner.

            (b) The Contractor shall execute a Nondisclosure and Noncompetition
         Agreement in substantially the form attached hereto as Exhibit A
         concurrent with the execution of this Agreement.


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         3. LICENSES; TOOLS AND MATERIALS. The Contractor shall be responsible
for obtaining, at the Contractor's own expense, all licenses, permits and bonds
as may be required by any federal, state or local law or regulation for the
performance of the Contractor's duties hereunder. The Company shall be
responsible for supplying at its cost all necessary tools and materials to be
used by the Contractor.

         4. LIMITATIONS. Nothing in this Agreement shall be construed to give
the Contractor authority to represent the Company before any court or
governmental or regulatory agency without the express prior written
authorization of the Company. In addition, all files, books, accounts, records
and other information of any nature, however recorded or stored, and related to
the Company (the "Records") shall at all times belong to the Company and to the
extent possessed by the Contractor hereunder, such possession shall be for the
benefit of and as agent for the Company. The Contractor's possession of the
Records is at the will of the Company and is solely for the purpose of enabling
the Contractor to perform his obligations hereunder. The Records shall be
readily separable from the records of the Contractor.

         5. TERM. The term of this Agreement shall commence on the date hereof
and shall continue thereafter through and including the close of business on
April 30, 1998. At the end of the term, the Contractor shall have the option, in
her sole discretion, to return to the Company in her prior position or a
position equivalent to her prior position as Vice President of Sales and
Marketing. Notwithstanding the foregoing, the Company may terminate this
Agreement for "cause," as defined herein, by giving written notice at least 30
days in advance of its desire to terminate this Agreement for cause. The Company
shall be deemed to have cause for terminating the Contractor's engagement in the
event the Contractor (i) demonstrates any dishonesty or engages in any act of
moral turpitude, (ii) improperly performs or fails to perform the Services
described herein, (iii) causes intentional damage to substantial property of the
Company, or (iv) is unable to perform the Services because of death or a
disability which renders her unable to perform the Services for 30 consecutive
calendar days.

         6. FEES. As compensation for the performance of the Services, the
Company shall pay to the Contractor the amounts agreed to from time to time by
the Company and the Contractor. No amounts (including, without limitation,
social security, federal and state withholding taxes) shall be withheld or
otherwise subtracted from the compensation paid to the Contractor pursuant to
this Section 6 unless required by law. In addition, the Contractor shall be
reimbursed for all expenses incurred by the Contractor on behalf (and with the
prior written authorization) of the Company within 15 days from the date the
Contractor delivers an itemized report of such expenses, together with receipts
or other evidence of payment reasonably satisfactory to the Company and its
accountant.

         7. INDEMNIFICATION. The Contractor shall defend, release, indemnify and
hold the Company and its directors, officers, shareholders, employees and agents
and the personal representatives and assigns of each, harmless from and against
any and all claims, suits, liability, costs and expenses, including, without
limitation, attorneys' fees and expenses, in connection with any act



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or omission of the Contractor, his employees and/or agents in connection with
the provision of the Services.

         8. INSURANCE REPRESENTATIONS; WORKPLACE SAFETY. The Contractor agrees
to maintain liability, worker's compensation, errors and omission and/or other
insurance such amounts and with such carriers as the Company may reasonably
request, each of which policies shall, upon request of the Company, name the
Company as an additional insured. In addition, the Contractor shall be solely
responsible for workplace safety, shall maintain the workplace in accordance
with industry standards and shall comply with all governmental (including
federal, state and local) regulations.

         9. NOTICES. All notices, demands, requests or other communications
which may be or are required to be given, served or sent by one party to the
other party pursuant to this Agreement shall be in writing and shall be hand
delivered or mailed by certified mail return receipt requested, postage prepaid,
or sent by telefax, addressed as follows:

            If to the Company:

                     P.O. Box 13533
                     Research Triangle Park, NC 27709
                     Attention:  Jeff Hunter, President
                     Telecopy:  (919) 468-0486

            If to the Contractor:

                     ______________________________
                     ______________________________
                     ______________________________

            Each party may designate by notice in writing a new address to which
any notice, demand, request or communication may thereafter be delivered, given
or sent. Documents delivered by hand shall be deemed to have been received upon
delivery; documents sent by telefax shall be deemed to have been received when
the answer back is received; and documents sent by mail shall be deemed to have
been received upon their receipt or at such time as delivery is refused by the
addressee upon presentation.

         10. SECURITY. The Contractor agrees that she will at all times comply
with all security regulations in effect from time to time at the Company's
premises or applicable outside such premises to materials belonging to the
Company. The Contractor agrees not to use or disclose to any party any
information, systems, equipment, ideas, processor or methods of operation
observed in connection with the performance of his obligations hereunder.

         11. INDEPENDENT CONTRACTOR.

             (a) Acknowledgment by the Contractor. The Contractor acknowledges
         and agrees that the Contractor will be treated, vis-a-vis the Company,
         as an independent contractor and

             
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         not as an employee, agent or authorized representative of the Company.
         The Contractor shall have no authority to bind the Company to any
         contract, agreement or obligation whatsoever. The acts of the
         Contractor shall in no way constitute the acts of the Company, and the
         Contractor shall not represent to any third party that the Contractor
         has any express or implied authority to bind the Company to any such
         contract, agreement or obligation.

             (b) Tax Matters. Because the Contractor is an independent
         contractor, the Company will not withhold from any compensation paid to
         the Contractor any amounts for federal or state income taxes, or social
         security (FICA) for the Contractor, nor will the Company pay any social
         security or unemployment tax with respect to the Contractor. Such taxes
         are the responsibility of the Contractor. The Contractor agrees to
         indemnify and hold the Company (including its employees, officers,
         directors, agents, subsidiaries or affiliates) harmless, and hereby
         indemnifies and hold the Company harmless, from and against any damage,
         claim, assessment, interest charge or penalty incurred by or charged to
         the Company as a result of any claim, cause of action or assessment by
         any federal or state government or agency for any nonpayment or late
         payment by the Contractor of any tax or contribution based upon
         compensation paid hereunder or because the Company did not withhold any
         taxes from compensation paid hereunder.

             (c) No insurance. Consistent with the Contractor's status as an
         independent contractor, the Company will not provide the Contractor
         with any company, individual or group insurance policy or any other
         kind of insurance coverage whatsoever.

         12. ASSIGNMENT. Neither this Agreement or any interest herein or any
rights hereunder shall be sold or assigned by the Contractor, nor shall any of
the duties of the Contractor hereunder be delegated to any person, firm or
corporation, without prior notice to and consent of the Company.

         13. INTELLECTUAL PROPERTY. Any inventions, copyrights or other
intellectual property created or developed by the Contractor or the Contractor's
employees, or associates or subcontractors during the term of this Agreement
related to the work performed under the Agreement shall be assigned to the
Company.

         14. STANDARD OF CARE. The Contractor warrants that she will exercise
due diligence to performance Services in a professional manner in compliance
with all applicable laws and regulations and the highest ethical standards. In
addition, the Contractor represents and warrants that any information which she
may supply the Company during the term of this Agreement (i) will have been
obtained by the Contractor lawfully and firm publicly available sources and (ii)
will not be confidential or proprietary to any third person. Nothing in this
Agreement shall be construed as authorizing or encouraging the Contractor to
obtain information for the Company in violation of any third party's rights to
copyright or trade secret protection.

         15. MISCELLANEOUS.

             (a) The provisions of this Agreement may be waived, altered,
         amended or repealed, in whole or in part, only on the written consent
         of the Company and the Contractor.


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             (b) Section headings and numbers used in this Agreement are
         included for convenience of reference only, and, if there is any
         conflict between any such numbers and headings and the text of this
         Agreement, the text shall control. Each of the statements set forth in
         the premises of this Agreement is incorporated into the Agreement as a
         valid and binding representation of the party or parties to whom it
         relates.

             (c) This Agreement shall be governed by and construed in accordance
         with the laws of the State of North Carolina without reference to the
         choice of law principles thereof. If any dispute arises hereunder, the
         parties hereto agree that any suit brought by either party shall be
         heard in the courts of North Carolina or any federal court sitting in
         North Carolina, and the parties hereto consent to the jurisdiction of
         such courts.

             (d) This Agreement may be executed in one or more counterparts,
         each of which shall be deemed an original, but all of which together
         shall constitute one and the same instrument.

             (e) This Agreement, together with the Confidential Disclosure
         Agreement herein referenced represent the entire agreement of the
         parties with respect to the subject matter hereof and supersede in
         their entirety any and all prior written or oral agreements with
         respect thereto.

             (f) Neither party shall have the right under this Agreement to use
         the name, trademark or trade names of the other, unless prior written
         approval has been obtained. Any such approval or authorization shall
         cease upon termination of this Agreement.

         IN WITNESS WHEREOF, the duly authorized representations of the parties
have executed this Independent Contractor Agreement as of the date and year
first above written.


                                    COMPANY

                                    C3, Inc.


                                    By: /s/ Jeff Hunter
                                    -------------------------------------
                                        Jeff Hunter, President



                                    CONTRACTOR


                                    /s/ Paula K. Berardinelli            (SEAL)
                                    -------------------------------------
                                    Paula K. Berardinelli



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