REFINING CUSTOMERS - Due to the current influx of precious metal pricing, our standard lead time has increased by 3 business days. Please allow 6 business days for refining clean scrap and 13 business days for stone removal and/or sweeps.

Hoover and Strong - The Gold Standard
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  • Mill
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  • Harmony
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    Proudly serving the jewelry industry since 1912, Hoover & Strong offers the finest quality mill and findings products as well as reliable refining, casting and diamond services. We are committed to supplying responsibly sourced products made in the USA.
    mill products
    findings
    bands
    bridal jewelry
    finished jewelry
    diamonds
    you know our metals. now meet our gems.you know our metals. now meet our gems.

    We’re excited to introduce gemstones to our offerings!

    In addition to our searchable inventory of over 8,000 diamonds, you can now explore a wide selection of colorful and vibrant, responsibly-sourced Harmony gemstones. Our collections include certified conflict-free, mined, lab-grown, and recycled stones — all aligned with the values you've come to expect from Hoover & Strong.

    You’ve trusted our metals for years. Now, say hello to our stones!

    LEARN THE STORY BEHIND HARMONY GEMSTONES Sapphires | Rhodolites | Garnets | Tsavorites | Aquamarines | Tourmalines | Emeralds

    contract casting

    We offer quality castings manufactured with 100% recycled Harmony casting grains.

    Enjoy volume discounts with annual purchase commitments. Quick and reasonable turn-around times. FREE consultation and technical advice.

    refining

    World's Greenest Refiner!

    We offer FREE Refining, FREE Shipping and Industry Leading Payouts

    We believe in a responsible and transparent supply chain and do our part to offer products that live up to these values. We offer both recycled and responsibly sourced, newly mined materials so you can choose what fits best with your business objectives.
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