Document:

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                             Mayor's Jewelers, Inc.
                            14051 N.W. 14(th) Street
                             Sunrise, Florida 33323

                                 August 16, 2002

Henry Birks & Sons Inc.
1240 Square Phillips
Montreal, Quebec
H3B 3H4

Ladies and Gentlemen:

                  Reference is made to the Investment Agreement dated July 30,
2002 (the "Investment Agreement"), between Mayor's Jewelers, Inc., a Delaware
corporation (the "Seller"), and Henry Birks & Sons Inc., a Canadian corporation
(the "Purchaser"). Pursuant to Section 8.04 of the Investment Agreement, this
letter (this "Letter") is an instrument in writing, which shall serve to amend
and modify certain definitions, representations and agreements contained in the
Investment Agreement. To the extent there is any conflict between the Investment
Agreement and this Letter with respect to the subject matter hereof, this Letter
shall supersede the Investment Agreement. In all other respects, the Investment
Agreement shall constitute the entire agreement of the parties thereto with
respect to the subject matter thereof.

                  Within Section 1.01, the definition:

                           "Credit Agreement" means the Revolving Credit,
                  Tranche B Loan and Security Agreement entered into between
                  Mayor's Jewelers, Inc. and Fleet Retail Finance Inc. and Back
                  Bay Capital Funding LLC, dated as of May 30, 2002.

                           is replaced with:

                           "Credit Agreement" means the Revolving Credit,
                  Tranche B Loan and Security Agreement entered into between
                  Mayor's Jewelers, Inc. and Fleet Retail Finance Inc. and Back
                  Bay Capital Funding LLC, dated as of May 30, 2002, and any
                  refinancing thereof including, without limitation, the
                  refinancing contemplated by the unexecuted Revolving Credit,
                  Tranche B Loan and Security Agreement among Mayor's Jewelers,
                  Inc. and its Domestic Subsidiaries and Fleet Retail Finance
                  Inc., GMAC Business Credit, LLC and Back Bay Capital Funding
                  LLC.

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                           and, the definition:

                           "Subsidiaries" means Mayor's Jewelers, Inc., a
                  Florida corporation, American Horological Corporation, a
                  Florida corporation, JBM Retail Company, Inc., a Delaware
                  corporation, JBM Venture Co. Inc., a Delaware corporation,
                  Club Duty Free, a Delaware corporation, Designer Timepieces,
                  Inc., a Delaware corporation, Ultimate Fine Jewelry and
                  Watches, Inc., a Delaware corporation, Ultimate Fine Jewelry
                  International, Inc., a Delaware corporation, UPKE, Inc., a
                  Delaware corporation, JBM International, Inc., a Delaware
                  corporation, Jewelry Depot, Inc., a Delaware corporation,
                  Mayor's Jewelers Intellectual Property Holding Company, a
                  Delaware corporation, Exclusive Diamonds International, Ltd.,
                  an Israeli corporation, Regal Diamonds International (T.A.)
                  Ltd., a Delaware corporation, Jan Bell Marketing/Puerto Rico,
                  Inc., a Puerto Rico corporation, Mayor's Jewelers Receivables
                  Holding Company, a Nevada corporation, Maier & Berkele, Inc. a
                  Georgia corporation, Maier's Jewelers, Inc., a Georgia
                  Corporation, and any and all corporations, partnerships,
                  limited liability companies, joint ventures, associations and
                  other entities controlled by the Seller directly or indirectly
                  through one or more intermediaries

                           is replaced with:

                           "Subsidiaries" means Mayor's Jewelers, Inc., a
                  Florida corporation, JBM Retail Company, Inc., a Delaware
                  corporation, JBM Venture Co., Inc., a Delaware corporation,
                  Mayor's Jewelers Intellectual Property Holding Company, a
                  Delaware corporation, Exclusive Diamonds International, Ltd.,
                  an Israeli corporation, Regal Diamonds International (T.A.)
                  Ltd., an Israeli corporation, Jan Bell Marketing/Puerto Rico,
                  Inc., a Puerto Rico corporation.

                  Section 3.14, paragraph (t), clause (i):

                           (i) abandoned, sold, assigned, or granted any
                  security interest in or to any item of the Owned Intellectual
                  Property, Licensed Intellectual Property, Seller IP
                  Agreements, including, without limitation, failing to perform
                  or cause to be performed all applicable filings, recordings
                  and other acts, and pay or caused to be paid all required fees
                  and taxes, to maintain and protect its interest in such
                  Intellectual Property,

                           is replaced with:

                           (i) abandoned, sold, assigned, or granted any
                  security interest in or to any item of the Owned Intellectual
                  Property, Licensed Intellectual Property, Seller IP Agreements
                  (other than a security interest or a collateral assignment
                  granted pursuant to the Credit Agreement and any other
                  document delivered in connection therewith), including,
                  without limitation, failing to perform or cause to be
                  performed all applicable filings, recordings and other acts,
                  and pay or caused

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                  to be paid all required fees and taxes, to maintain and
                  protect its interest in such Intellectual Property,

                  Section 5.07:

                           SECTION 5.07. Use of Intellectual Property. The
                  Seller acknowledges that from and after the Closing, the name
                  "Mayor's Jewelers" and all similar or related names, marks and
                  logos (all of such names, marks and logos being the "Seller
                  Marks") shall be owned by the Seller or a Subsidiary, that no
                  other person shall have any rights in the Seller Marks.

                           is replaced with:

                           SECTION 5.07. Use of Intellectual Property. The
                  Seller acknowledges that from and after the Closing, the name
                  "Mayor's Jewelers" and all similar or related names, marks and
                  logos (all of such names, marks and logos being the "Seller
                  Marks") shall be owned by the Seller or a Subsidiary, that no
                  other person shall have any rights in the Seller Marks.
                  Notwithstanding the foregoing, nothing contained herein shall
                  in any way impair the rights of the Agents and Lenders under
                  the Credit Agreement and any other document delivered in
                  connection therewith, to receive a pledge, security interest,
                  collateral assignment or other transfer of any right in the
                  Seller Marks, Owned Intellectual Property, Licensed
                  Intellectual Property or Seller IP Agreement or the rights of
                  the Seller or any Subsidiary to grant a security interest in,
                  pledge, collaterally assign or otherwise transfer such rights
                  to such lender.

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         If you agree to these amendments set forth in this Letter, please
indicate your acceptance by signing in the space provided below.

         We trust the whole is to your satisfaction, we remain,

                                                  Very truly yours,

                                                  MAYOR'S JEWELERS, INC.

                                                  By:
                                                         -----------------------
                                                  Name:  Marc Weinstein
                                                  Title: Senior Vice President,
                                                         Chief Operating Officer

Agreed and accepted as of
the date first written above:

HENRY BIRKS & SONS INC.

By:
        -----------------------------
Name:   Thomas A. Andruskevich
Title:  President and
        Chief Executive Officer

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                                                                      EXHIBIT 10

MANUFACTURING & SALE AGREEMENT, dated as of August 20, 2002

BY AND BETWEEN:                    MAYOR'S JEWELERS, INC., a company
                                   incorporated under the laws of Delaware and
                                   having its head office at 14051 Northwest
                                   14th Street Sunrise, FL 33323 (hereinafter
                                   referred to as "Mayor's")

AND:                               HENRY BIRKS & SONS INC., a company
                                   incorporated under the laws of Canada and
                                   having its head office at 1240 Phillips
                                   Square, Montreal, (Quebec) (hereinafter
                                   referred to as "Birks")

THIS AGREEMENT WITNESSETH THAT,

WHEREAS, Mayor's is engaged in the retail jewelry business at various locations
in the United States; and

WHEREAS, Birks possesses certain expertise and authority in manufacturing and
purchasing jewelry and related goods;

WHEREAS, Mayor's wishes to purchase certain jewelry and related goods from
Birks; and

WHEREAS, Mayor's and Birks wish to benefit from their combined buying power;

NOW THEREFORE, in consideration of the mutual covenants and premises herein
contained, it is agreed by and between the Parties as follows:

                                   ARTICLE ONE
                                 INTERPRETATION

1.1.     DEFINITIONS. For the purposes hereof, the following words and phrases
         shall have the following meanings, respectively, unless otherwise
         specified by the context:

         (a)      "Agreement" shall mean this Manufacturing and Sale Agreement
                  and all instruments supplemental hereto or any amendment or
                  confirmation hereof; "herein", "hereof", "hereto" and
                  "hereunder" and similar expressions mean and refer to this
                  Agreement and not to any particular Article, Section,
                  Subsection or other subdivision.

         (b)      "Independent Committee" shall mean a committee composed of two
                  or more independent members of the Board of Directors of
                  Mayor's.

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         (c)      "COO" shall mean the person then designated by the Board of
                  Directors of Mayor's as the Chief Operating Officer of
                  Mayor's.

         (d)      "Event of Default" shall have the meaning ascribed thereto in
                  Section 4.2.

         (e)      "fiscal year" shall mean a fiscal year of Mayor's.

         (f)      "Parties" shall mean Mayor's and Birks and "Party" shall mean
                  any one of them.

1.2      HEADINGS. The division of this Agreement into Articles, Sections,
         Subsections and other subdivisions and the insertion of headings are
         for convenience or reference only and shall not affect or be utilized
         in the construction or interpretation hereof.

1.3      SEVERABILITY. Any Article, Section, Subsection or other subdivision of
         this Agreement or any other provision of this Agreement which is, or
         becomes, illegal, invalid or unenforceable shall be severed herefrom
         and shall be ineffective to the extent of such illegality, invalidity
         or unenforceability and shall not affect or impair the remaining
         provisions hereof, which provisions shall be severed from any illegal,
         invalid or unenforceable Article, Section, Subsection or other
         subdivision of this Agreement or any other provisions of this
         Agreement.

1.4      ENTIRE AGREEMENT. This Agreement, together with any documents to be
         delivered pursuant hereto or thereto, constitute the entire agreement
         between the Parties pertaining to the subject matter hereof and
         supersede all prior agreements, understandings, negotiations and
         discussions, whether oral or written, of the Parties.

1.5      WAIVER. No waiver of any of the provisions of this Agreement shall be
         deemed to constitute a waiver of any other provisions (whether similar
         or not) nor shall such waiver constitute a continuing waiver unless
         otherwise expressly provided in writing and duly executed by the Party
         to be bound thereby.

1.6      GOVERNING LAW. This Agreement shall be governed, interpreted and
         construed in accordance with the Laws of the State of Delaware
         applicable therein.

1.7      CURRENCY. Unless otherwise indicated, all dollar amounts in this
         Agreement are expressed in United States dollars.

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                                   ARTICLE TWO
                                  MANUFACTURING

2.1      MANUFACTURED PRODUCTS. From time to time and upon Mayor's request,
         Birks shall agree to manufacture and Mayor's shall agree to purchase
         from Birks, diamond, precious, semi-precious, gold and silver jewelry
         ("Manufactured Products"), the quantity, specification and delivery of
         which shall be mutually agreed upon between the two Parties.

2.2      PRICE. The price of Manufactured Products shall be calculated in
         accordance with industry practices generally prevailing at the time and
         consideration shall be given to the following, without limitation: (a)
         the cost associated with production and transportation of the
         Manufactured Products, including but not limited to, the cost of (i)
         precious metals, stones and other materials, (ii) labor, (iii) overhead
         (iv) shipping, (v) duties, (vi) taxes, (vii) brokerage fees and (b) a
         reasonable factory margin. Birks hereby represents and warrants that
         the price of Manufactured Products shall be competitive with the market
         generally prevailing at the time of the transaction.

                                  ARTICLE THREE
                          SALES OF THIRD-PARTY PRODUCTS

3.1      PRODUCTS. From time to time and upon Mayor's request, Birks shall agree
         to sell to Mayor's and Mayor's shall agree to purchase from Birks,
         diamond, precious, semi-precious, gold and silver jewelry, loose
         gemstone and other products, which Birks has purchased from a
         third-party vendor ("Third-Party Products"), the quantity,
         specification and delivery of which shall be mutually agreed upon
         between the two Parties. In addition to the foregoing, as long as
         Birks' prices remain competitive relative to market and Birks is able
         fulfill Mayor's requirements in terms of quality, standards, cut and
         specifications, as applicable, Mayor's hereby agrees that during the
         pendency of this Agreement, Birks shall have the first right to supply
         Mayor's with all of its Third-Party Product requirements.

3.2      PRICE. Birks hereby represents and warrants that the price of the
         Third-Party Products shall be competitive with the market generally
         prevailing at the time of the transaction given the quantity and
         quality of the merchandise sold, shall be fair and in any event no
         greater than the price Birks paid to a third party vendor.

                                  ARTICLE FOUR
                             TERM; PAYMENT; REMEDIES

4.1      TERM. This Agreement will become effective on the date first mentioned
         above and will remain in effect for an initial period of one year from

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         that date. The Agreement shall automatically renew for additional
         one-year terms unless otherwise terminated.

4.2      TERMINATION. Birks or the Independent Committee shall have the right to
         terminate this Agreement upon the occurrence of an Event of Default if
         such default is not cured in 10 business days. Birks or the Independent
         Committee may terminate this Agreement upon 90 days notice to the other
         Party prior to the end of a term.

4.3      PAYMENT. Birks will invoice Mayor's for amounts payable for goods sold
         to Mayor's pursuant to Sections 2 and Section 3. Payment shall be due
         and payable by Mayor's within 60 days of receipt of each invoice.

4.4      EVENT OF DEFAULT. An "Event of Default" will mean any of the following:

         (a)      The failure by any Party to perform or fulfill any obligation
                  pursuant to the Agreement;

         (b)      The bankruptcy of any Party or the making by such Party of an
                  assignment for the benefit of creditors, or the appointment of
                  a trustee or receiver and manager or liquidator to such Party
                  for all or a substantial part of its property, or the
                  commencement of bankruptcy, reorganization, arrangement,
                  insolvency or similar proceedings by or against such Party
                  under the laws of any jurisdiction, except where such
                  proceedings are defended in good faith by such Party.

4.5      REMEDIES. If any Event of Default shall have occurred to any Party,
         then the other Party may exercise the remedies permitted by the law and
         the Agreement may immediately terminate and all amounts shall become
         due and payable.

4.6      DEFAULT INTEREST. If any Party fails to pay as and when due and payable
         any amount hereunder, then such Party shall pay interest on such amount
         from the due date up to and including the date when such amount and all
         interests thereon are paid in full at the rate per annum equal to 18%
         (1.5% per month). Such interest shall be payable on demand.

                                  ARTICLE FIVE
                                     GENERAL

5.1      REVIEW. For each fiscal year under this Agreement, the COO shall
         present a proposed purchase plan to the Independent Committee setting
         forth (i) a schedule of the goods to be purchased from Birks for that
         fiscal year and (ii) the cost of such goods (a "Purchase Plan"). For
         the current fiscal year, the COO shall present a Purchase Plan to the
         Independent Committee within 60 days following execution of this
         Agreement. For each subsequent fiscal year under this Agreement, the
         COO shall present a Purchase Plan to the Independent Committee by the
         end of the first quarter of the fiscal year to which such Project
         Schedule applies. In each fiscal year, the Independent Committee shall
         review the Purchase Plan and approve the Purchase Plan either (i) as
         proposed by the COO or (ii) as modified by the Independent Committee in

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         consultation with the COO. Once approved by the Independent Committee,
         a Purchase Plan may be amended by the COO, in his discretion, to
         reflect changes in events, circumstances or the requirements of
         Mayor's; provided that, any material amendment shall be approved by the
         Independent Committee. By the end of the first quarter of each fiscal
         year under this Agreement, the COO shall present a report to the
         Independent Committee, detailing (i) the goods by product category
         purchased from Birks in the preceding fiscal year (ii) the cost of such
         goods (iii) the year end inventory of such goods and (iv) the standard
         mark-up on sales of such goods. Notwithstanding anything to the
         contrary herein contained, at any time during the pendency of this
         Agreement the Independent Committee shall have authority to
         investigate, audit, review or otherwise examine any goods purchased or
         to be purchased hereunder from Birks, including without limitation, the
         cost of such goods, the quality of such goods, the rate of return,
         comparable goods, third-party vendors of Birks and other matters deemed
         important by the Independent Committee. The Independent Committee shall
         consult with and advise the COO of Mayor's as the Independent Committee
         deems appropriate.

5.2      CONTROL PROCEDURES. The Parties hereby agree that the procedures under
         this Agreement with respect to quality control, customer returned
         goods, damaged goods, delivery and seasonality will be consistent with
         customary industry practices then prevailing.

5.3      NOTIFICATION. Each Party shall forthwith notify the other Party of any
         circumstances or facts that materially and adversely affect or could
         reasonably be expected to materially and adversely affect such Party's
         performance of its obligations hereunder.

5.4      NOTICES. Any notice, consent, approval, direction or other instrument
         required or permitted to be given hereunder shall be in writing and
         given by delivery or sent by telex, telecopier or similar
         telecommunication device and addressed:

         (a)      in the case of Mayor's:

                           Mayor's Jewelers, Inc.
                           14051 Northwest 14th
                           Street Sunrise, FL 33323
                           Attention: Chief Operating Officer

         (b)      in the case of Birks:

                           Henry Birks & Sons Inc.
                           1240 Phillips Square
                           Montreal, Quebec
                           H3B 3H4, Canada
                           Attention: Chief Financial Officer

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         Any notice, consent, approval, direction or other instrument given as
         aforesaid shall be deemed to have been effectively given and received,
         if sent by telex, telecopier or similar telecommunications device on
         the next business day following such transmission or, if delivered, to
         have been given and received on the date of such delivery. Any Party
         may change its address for service by written notice given as
         aforesaid.

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IN WITNESS WHEREOF, the Parties have executed this Agreement on the date and at
the place first above mentioned.

                                MAYOR'S JEWELERS, INC.

                                By: /s/ Mark Weinstein
                                   -----------------------------------------
                                     Name:    Mark Weinstein
                                     Title:   Chief Operating Officer and
                                              Senior Vice President

                                HENRY BIRKS & SONS INC.

                                By:  /s/ Thomas A. Andruskevich
                                     ---------------------------------------
                                     Name:     Thomas A. Andruskevich
                                     Title:    President and
                                               Chief Executive Officer

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