How Does a Diamond Tester Work? 💎🔍

  • 1️⃣ Thermal Conductivity Testers 🔥 (Most Common)

    • Diamonds conduct heat extremely well, unlike most fake stones
    • The tester has a metal tip that touches the stone and detects how quickly heat moves through it
    • If the heat dissipates fast → it’s a real diamond
    • Moissanite can also conduct heat, so this test may not always distinguish between the two

  • 2️⃣ Electrical Conductivity Testers ⚡ (For Diamonds vs. Moissanite)

    • Moissanite conducts electricity, while diamonds do not
    • Electrical diamond testers use a small electrical current to check conductivity
    • If it conducts electricity → it’s moissanite, not a diamond
    • This test is often combined with thermal testing for accuracy

  • 3️⃣ UV & Fluorescence Test 🌟

    • Some diamonds glow under UV light (fluorescence), while others do not
    • Lab-grown diamonds sometimes have different fluorescence patterns than natural ones