EXHIBIT 23.3

            Consent of Ernst & Young LLP, Independent Auditors

We consent to the reference to our firm under the caption "Experts" in the
Amendment No. 1 to the Registration Statement (Form S-3 No. 333-125100) and
related Prospectus of Illumina, Inc. for the registration of 1,579,897 shares of
Illumina, Inc. common stock and to the incorporation by reference therein of our
report dated February 22, 2005, with respect to the 2004 and 2003 financial
statements of CyVera Corporation included in a Current Report (Form 8-K/A) of
Illumina, Inc., filed with the Securities and Exchange Commission.

                                            /s/ Ernst & Young LLP

San Diego, California
June 17, 2005