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 Diamonds = Blue
- HPHT Lab Diamonds = Red
- CVD Lab Diamonds = Green
- 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.