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Yehuda Watson AI - CVD, CZ, Moissanite, and HPHT Lab Grown Diamond Detector

Yehuda Watson AI - CVD, CZ, Moissanite, and HPHT Lab Grown Diamond Detector - Main image
$2591.5 $3550 In stock

Know exactly what you're buying, selling, or repairing — in 15 seconds. The Watson AI is Yehuda's newest compact detector, separating natural diamonds from lab-grown (CVD & HPHT) and simulants (CZ, Moissanite) with AI-powered accuracy trusted by jewelry professionals worldwide.

Why Watson AI

  • AI stone classification — Every stone gets a color-coded ID: Natural, CVD, HPHT, CZ, or Moissanite. Auto-detects stones from 0.03 ct; manual marking covers any size. Over 99% accuracy in internal testing — and zero lab-grown diamonds missed across hundreds of thousands of stones tested.
  • Patent-pending CZ detection — Induces a distinct pink fluorescence that positively identifies Cubic Zirconia and similar simulants down to 0.01 ct, loose or mounted, with over 99% accuracy.
  • Compact & portable — Lightweight, rechargeable, and counter-friendly, yet tests up to 8 rings or ~50 carats of loose stones at a time.
  • Tests everything you handle daily — Loose stones, mounted jewelry, rings, parcels, and melee of any size (white diamonds, D–K color).
  • Six-image analysis — RESULT, Long UV, COLORED, GLOWING, ORIGINAL, and SIMULANTS views give a complete fluorescence profile. One golden rule: blue-only under Long UV = 100% natural.
  • Industry-low false positives — ~2% vs. the 5–15% typical of detectors in this price range.
  • No calibration, ever — Self-calibrating. Charges with any USB-C charger and works while charging.
  • Cloud Back Office — Store 1,000 tests in your Yehuda cloud. View, filter, export, and check per-stone AI confidence from any device at cloud.yehuda.com.

AI Color-Coded Results

  • Natural Diam>
  • HPHT Lab Diam>
  • CVD Lab Diam>
  • CZ = Pink
  • Moissanite = Orange

Included Accessories

  • 1 – 1.5" x 2.5" loose stone tray
  • 1 – 1.5" x 2.5" loose stone tray with sections
  • 1 – Slotted ring holder accommodates up to 8 rings
  • 1 – USB-C charging cable
  • 1 – Smart device connector

Attributes

  • Dimensions: WxLxH 90x140x102mm, 3.5" x 5.5" x 4"
  • Power: 5V/1A
  • Shipping Weight: 0.85Kg, 1.9lbs

What's in the box
Watson AI detector, smartphone, loose stone tray, divided stone tray, slotted ring holder (holds 8 rings), Ethernet-to-USB-C adapter, short + long USB-C cables.

Good to know
Requires a $12.50/month subscription (per account — covers up to 10 detectors and unlimited users) for app updates, AI development, and cloud storage. 1-year warranty; extended warranty available within 1 month of registration. AI results are advisory and require an internet connection.

Backed by Yehuda — the global leader in lab-grown diamond detection — with continuous AI updates, training videos, and worldwide phone, WhatsApp, and in-app support.

*Due to manufacturer restrictions, this is a final sale item (no returns)

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Henry W. ★★★★★

I was tired of guessing between moissanite and diamond during repairs, but this detector settles it in seconds. The compact size fits right in my toolkit, and the 15-second test speed is a lifesaver for quick checks.

Daniel T. ★★★★★

Finally, a tool that actually tells me in 15 seconds if a stone is moissanite or HPHT lab-grown. I've been burned before buying what I thought were naturals. The screen is clear and easy to read even in dim light, so no more second-guessing my purchases.

David F. ★★★★★

Took it to a local jeweler and we tested it side-by-side on a few loose stones — the 15-second readout nailed every single one, including a HPHT stone that had fooled two other testers. It's compact enough to slip in my pocket for estate sales, which is exactly what I needed.