Doba

Thermal‑Conductivity Gem Testing Pen, LED & Audio Alert for Diamond Ruby Sapphire Jade Agate Crystal

$18.96 USD

~~$25.28 USD~~ $18.96 USD

Sale Sold out

Shipping calculated at checkout.

Quantity 1 set

✅ 30‑Day Satisfaction Guarantee

🚀 Ships Within 24 Business Hours

📦 Complete Kit, Battery Included

🎒 Portable Leather Storage Pouch

Portable Diamond & Gemstone Tester Kit | With 30X Jeweler's Loupe

Thermal‑Conductivity Gem Testing Pen, LED & Audio Alert for Diamond Ruby Sapphire Jade Agate Crystal

All‑in‑one portable gem identification kit: thermal‑conductivity diamond tester pen plus 30X jeweler magnifying loupe, test tray, leather carry pouch, 9V battery and instruction manual. Uses LED lamp and beeping audio feedback for quick non‑damaging gemstone screening. Works for diamond, ruby, sapphire, jadeite, agate, crystal and tells apart CZ / glass simulants. Important: This is preliminary screening tool ONLY. Cannot separate moissanite from diamond, cannot replace official gem‑lab certification report.

✅ Non‑Damaging Test

✅ LED + Beep Feedback

✅ 30X Jeweler Loupe Included

✅ Full‑Set Ready‑To‑Use

Gem‑Buyer Common Frustrations

Buying second‑hand jewelry online, hard to quickly tell real diamond from cubic‑zirconia glass fakes without sending gems to expensive certified labs.

Many cheap testers lack magnifier, need buying loupe separately; fragile probes break easily without proper protective storage pouch.

❗ Critical limitation: Thermal‑type testers CANNOT distinguish moissanite from diamond. This tool is for quick preliminary screening only, not official certification.

Why Choose Our Gemstone Tester Kit?

Feature	Our Complete Gem Testing Kit	Typical Low‑Cost Tester‑Only Unit
Package Contents	Tester +30X loupe, tray, pouch, 9V battery, manual	Tester pen only; no loupe, no battery, no storage bag
Result Feedback	LED light + audible beep dual‑alert	LED‑only, no audio reminder
Testing Scope	Diamond, ruby, sapphire, jade, agate, crystal; screen‑out CZ / glass fakes	Limited gem support, vague instruction manual
Important Disclaimer	Clearly stated: cannot detect moissanite; preliminary‑screening‑only	Omit moissanite limitation, mislead buyers expecting full‑certification

What This Gem‑Testing Kit Brings To You

💎 Thermal‑Conductivity Non‑Destructive Testing

Thermal‑probe pen tester, no scratch or harm to gemstone surface.

You get: Quick preliminary screening for diamond, ruby, sapphire, jadeite, agate, crystal. Differentiate real gems from cubic‑zirconia, glass simulants. Cannot tell moissanite apart from diamond; not official lab certificate.

🔔 Dual LED‑Light & Audible Beep Indication

Multi‑segment LED scale plus buzzer audio alert, reference reading for each gem‑variety.

You get: Intuitive read‑out without professional expertise. ≥9 light + beep suggests diamond; different LED ranges correspond to sapphire, agate, crystal, jade. Probe must keep 90‑degree vertical contact with gem surface during measurement.

🔍 30X Jeweler Loupe For Auxiliary Inspection

30‑times magnifying jeweler loupe included for gem detail observation.

You get: Check inclusions, cracks, surface condition of stones. Combine thermal tester + loupe for double‑check during second‑hand jewelry buying, collection appraisal.

🎒 Full‑Set Portable Travel‑Ready Kit

Includes tester, loupe, gem test tray, protective leather pouch, 9V battery, instruction manual.

You get: Out‑of‑box usable. Compact pen‑shape tester, leather bag shields delicate probe. Perfect for hobby‑collectors, small‑jewelry‑shops, off‑site buying / screening jobs.

What Our Gem‑Buyer Customers Are Saying

⭐⭐⭐⭐⭐

"Great starter screening kit! Remember it cannot catch moissanite. Works well telling CZ glass fakes away from real diamond for my second‑hand jewelry shopping."

— Verified Gem Collector

⭐⭐⭐⭐⭐

"Love that it comes with 30X loupe and battery. Follow the manual strictly, angle and finger contact make huge difference for readings."

— Verified Small‑Shop Jeweler

⭐⭐⭐⭐

"Probe is really sensitive, need avoid wind. This is screening tool only, do not treat it as official gem lab report."

— Verified Second‑Hand Jewelry Buyer

Quality & Practical Details You Can Trust

Portable Thermal‑Tester Pen

LED scale + beep audio output

30X Jeweler Loupe Included

For gem inclusion inspection

Full‑Kit: Battery + Pouch + Tray

Ready‑to‑use out‑of‑box

Preliminary‑Screening‑Only

Cannot detect moissanite

Important Note: Preliminary screening tool, NOT lab‑certified equipment; cannot distinguish moissanite vs diamond. Operate within 10‑35℃, avoid wind, humidity under 80%. Probe is delicate; strictly follow manual, never test metal objects. Not replacement for official gem‑lab appraisal certificate.

Ideal Application Scenarios

💎 Gem & Jewelry Hobby‑Collectors

Home preliminary screening for collected diamonds, rubies, jade and other gemstones.

🛒 Second‑Hand Jewelry Buying

Quick on‑site check when purchasing pre‑owned jewelry online / in‑person markets.

🏪 Small Jeweler & Reseller Shop

Portable tool for daily fast pre‑inspection before sending stones to certified labs.

🔍 Auxiliary Gem‑Detail Observation

30X loupe for checking gem cracks, inclusions and surface finishing status.

Suggested Matching Gem‑Tools

Gem Tweezers

Safe for holding loose gem‑stones

Moissanite Tester

For separating diamond & moissanite

Gem Storage Box

Organize loose gem‑stone specimens

Product Specifications

Product	Portable Diamond & Gemstone Tester Kit with 30X Jeweler's Loupe
Tester Dimension	6.1" × 1.61" × 0.28"
Power Source	1 × 9V battery (included)
Indicator	Multi‑segment LED lamp + audible beep alert
Warm‑Up Time	Approx. 20 seconds
Working‑Condition	10‑35℃; Humidity below 80%; wind‑free environment
Package‑Includes	Gem tester pen,30X jeweler loupe, test tray, leather protective bag,9V battery, user manual
Price Info	Sale $18.96 USD \| Original $25.28 USD

Pre‑Purchase Reminder: Only preliminary screening tool; cannot tell moissanite from diamond, not replace official gem‑lab certificate. Operate 10‑35℃ wind‑free space. Probe is fragile, strictly follow manual, never test metal objects.

Frequently Asked Questions

Q: Can this tester tell moissanite apart from real diamond?

No. Thermal‑conductivity‑based tester cannot distinguish moissanite and diamond. For moissanite identification you need dedicated moissanite tester. This is preliminary‑screening‑only tool.

Q: Does this tool replace official gem‑lab appraisal certificate?

No. It is quick home / shop preliminary screening device. For formal appraisal you need certified gem‑laboratory report.

Q: Why I get unstable, wrong readings?

Check environment: avoid wind, temperature 10‑35℃. Probe must be 90‑degree vertical on gem. Follow finger‑contact rule: touch metal‑panel for diamond test, no‑touch for other gems. Do‑not‑wear‑gloves.

Q: Can I test metal items with this pen?

Absolutely not. Never test metal objects, will damage the precision probe permanently.

Q: What if tester or accessories arrive defective?

Please contact our customer‑support team promptly for assistance with your order‑issue.

Important Operation & Care Guidelines

This is preliminary‑screening‑only; cannot separate moissanite and diamond, cannot substitute certified gem‑lab appraisal certificate.
Operate in wind‑free environment, working temp 10‑35℃, humidity under 80%; low‑temperature degrades battery and reading‑accuracy.
Probe must keep vertical 90‑degree against gem‑surface; diamond‑test requires finger touch rear‑metal‑panel; other gems must NOT touch metal‑panel; no gloves during operation.
Never test metal objects, it will destroy delicate probe assembly. Calibrate on glass before testing non‑diamond gem‑stones.
After‑use power‑off, cover probe protective cap, store inside leather pouch to prevent probe‑damage.