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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

  • Contact Us
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Home Blog

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Green: The color of Life

10 awesome blue gems that can chase your Monday blues away

Gems in Red - Secrets of 10 Red Gemstones

The ARI by Presidium

Top 10 colorless gems that are an alternative to Diamonds

Guide to Buying Lab-Grown Diamonds in Singapore

5 Things You Should Know About Lab-Grown Diamonds

Screen out potential laboratory-grown diamonds with the Synthetic Diamond Screener II by Presidium

10 Most Common Colored Gemstones

Earth-mined vs Lab-grown Diamonds

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