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    **For desktop view

    Presidium Diamond Verification Instrument®

    Diamond & Moissanite Testers

    Colored Gemstone Testers

    Gauges

    Scales

    Engraver

    Accessories

    shop all

    **For tablet and mobile view

    Shop All

    Presidium Diamond Verification Instrument®

    Diamond & Moissanite Testers

    Colored Gemstone Testers

    Gauges

    Scales

    Engraver

    Accessories

  • Locate A Reseller
  • Downloads
  • Repair Service
Home Diamond Tester

Diamond Tester

Earth-mined vs Lab-grown Diamonds - Presidium Blog

Earth-mined vs Lab-grown Diamonds

Is Singapore a Good Place to Buy Diamonds?

Is Singapore a Good Place to Buy Diamonds?

Top 5 Presidium Products in 2021

Top 5 Presidium Products in 2021

How Does a Diamond Tester Work?

How Does a Diamond Tester Work?

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