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  • Au Cornerstone, Inc.
    Au Cornerstone, Inc.
    (360) 336-5234
    PO Box 1127, 98273  Mount Vernon

    In 1987 Au Cornerstone was started by Sean McCarty and Lynn Strauss to provide quality jewelry repair and custom manufacturing to the Skagit Valley in Washington State. Our customers were instrumental in the design process to create marketable pieces of fine jewelry. In 1989 Au Cornerstone was offi…