---
product_id: 103553420
title: "GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy"
brand: "gemoro"
price: "VT97902"
currency: VUV
in_stock: true
reviews_count: 11
category: "Gem Oro"
url: https://www.desertcart.vu/products/103553420-gemoro-ultratester-3-diamond-tester-test-diamond-moissanite-white-sapphire
store_origin: VU
region: Vanuatu
---

# Precision diamond/moissanite detection Multi-source USB Type-C & rechargeable power LED illumination & UV fluorescence detection GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy

**Brand:** gemoro
**Price:** VT97902
**Availability:** ✅ In Stock

## Summary

> 💎 Test like a pro, never miss a sparkle!

## Quick Answers

- **What is this?** GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy by gemoro
- **How much does it cost?** VT97902 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/103553420-gemoro-ultratester-3-diamond-tester-test-diamond-moissanite-white-sapphire)

## Best For

- gemoro enthusiasts

## Why This Product

- Trusted gemoro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Your Way:** Flexible USB Type-C, rechargeable NiMH, or AAA battery options keep you testing nonstop.
- • **Trusted by Experts:** Recommended by Charles & Colvard, backed by lifetime electronics warranty for peace of mind.
- • **Ergonomic & Durable:** Sleek USA-designed shape with retractable probe tip built for professional comfort and longevity.
- • **Illuminate Every Detail:** LED stone illumination and UV fluorescence reveal clarity nuances and treatments instantly.
- • **Unmatched Stone Accuracy:** Breakthrough tech separates diamonds from moissanite & white sapphire with expert precision.

## Overview

The GemOro UltraTester 3+ is a professional-grade diamond tester designed to accurately distinguish diamonds from moissanite, CZ, and white sapphire using advanced scanning and software analysis. Featuring LED illumination and UV fluorescence detection, it offers detailed gemstone insights. Powered via USB Type-C or rechargeable/AAA batteries, its ergonomic design ensures comfort and durability. Trusted by industry experts and backed by a robust warranty, it’s the essential tool for precise gemstone authentication.

## Description

desertcart.com: GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy : Arts, Crafts & Sewing

Review: ACCURATE IF YOU FOLLOW INSTRUCTIONS - I replaced an outdated diamond tester with this and I love it!! You need to read and follow the instructions carefully before you start. It takes a little practice to hold/use the tester correctly to get an accurate reading. It becomes easy and fun to use once you get the hang of it. Other testers I have tried before detected moissanites as diamonds. I picked this Gemoro tester for its reliability in distinguishing the two.
Review: Very delicate and broke with ease, regretting not getting Presidium tester that i used for 20 years. - First the probe tip cap broke, and the probe tip came off. I got it working but the chargeable batteries didn’t work, i place 2 set of different brand new batteries and still did not work, only works with the provided USB cable and its power supply adapter, i know for the cap my warranty is useless i take the loss but bad product, i regret not going with the same brand of tester i’ve been using for more than 20 years, better get Presidium tester, like old saying if it isn’t broke don’t fix it.

## Features

- STONE IDENTIFICATION: This new enhanced testing technology is a breakthrough in the identification, detection, and separation of diamonds from other materials such as CZ, moissanite, and white sapphire. This technology has the capability to identify stones with low conductivity, allowing accurate detection and separation of diamonds from other materials. It evaluates stones using cutting-edge scanning techniques and advanced software analysis, ensuring a highly accurate test result.
- LED STONE ILLUMINATION & DETECTION: This is a high-performance diamond tester with LED stone illumination and UV fluorescence detection. It uses a unique retractable probe tip that is designed for enhanced durability. The LED stone illumination will help you see the subtle nuances of the diamond, such as clarity, while the UV fluorescence detection allows you to detect any potential diamond treatments. This is the perfect tool for diamond grading, authentication, and identification.
- POWERED BY USB Type-C: This versatile device comes with multiple power sources. It can be powered by either your USB Type-C cable, rechargeable NiMH batteries, or AAA Alkaline batteries with a battery-saving auto-off function. It includes (3) user-replaceable AAA NiMH rechargeable batteries, a universal multi-voltage 100V–240V AC adapter / charger cube, and a premium USB Type-C cord. You get to choose the power source that works best for you, and the device will be ready when you need it!
- DESIGNED IN THE USA: The sleek ergonomic shape of the ULTRA TESTER 3+ allows it to comfortably rest in your hand, and its LED stone illumination makes it even easier to see what you're testing! Designed in the USA and recommended by Charles and Colvard. It comes with 2-year limited replacement warranty on probe tip - Lifetime warranty on the electronics. This tester is not intended for Emerald.
- GEMORO TESTERS: GemOro is a leading manufacturer of gold and platinum testers, as well as diamond, moissanite and white sapphire testers. They are trusted by professionals and hobbyists alike. GemOro's testers are known for their accuracy, reliability, and ease of use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QUGGK3Y |
| Best Sellers Rank | #68,561 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #21 in Jewelry Diamond Testers |
| Brand Name | GemOro |
| Color | Black |
| Customer Reviews | 3.8 3.8 out of 5 stars (206) |
| Global Trade Identification Number | 00854413003543 |
| Item Dimensions | 9 x 5 x 2 inches |
| Item Type Name | 0776 Ultratester 3+ Diamond, Moissanite & White Sapphire Tester |
| Manufacturer | GemOro |
| Model | 0776 |
| Part Number | 776 |
| UPC | 854413003543 000311063817 081601410351 752913375347 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year warranty. |

## Product Details

- **Brand:** GemOro
- **Color:** Black
- **Item dimensions L x W x H:** 9 x 5 x 2 inches
- **UPC:** 854413003543 000311063817 081601410351 752913375347
- **Unit Count:** 1.0 Count

## Images

![GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy - Image 1](https://m.media-amazon.com/images/I/51WoRmJ1+8L.jpg)

## Questions & Answers

**Q: Does this detector detect gold silver or platinum?**
A: No.  This only detects if it is metal.  Not which kind.  Still a great tool.

**Q: What gem stones can it detect?  I have a huge variety of stones**
A: Diamonds, moissanite and sapphires.

**Q: Hello, what's the difference between 0776 and 0775?**
A: Not much of a difference at all

**Q: Will this test and identify treated black diamond?**
A: Yes.  It’s still a diamond.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ACCURATE IF YOU FOLLOW INSTRUCTIONS
*by C***. on January 30, 2022*

I replaced an outdated diamond tester with this and I love it!! You need to read and follow the instructions carefully before you start. It takes a little practice to hold/use the tester correctly to get an accurate reading. It becomes easy and fun to use once you get the hang of it. Other testers I have tried before detected moissanites as diamonds. I picked this Gemoro tester for its reliability in distinguishing the two.

### ⭐ Very delicate and broke with ease, regretting not getting Presidium tester that i used for 20 years.
*by M***O on July 6, 2022*

First the probe tip cap broke, and the probe tip came off. I got it working but the chargeable batteries didn’t work, i place 2 set of different brand new batteries and still did not work, only works with the provided USB cable and its power supply adapter, i know for the cap my warranty is useless i take the loss but bad product, i regret not going with the same brand of tester i’ve been using for more than 20 years, better get Presidium tester, like old saying if it isn’t broke don’t fix it.

### ⭐⭐⭐⭐⭐ Gemoro, great unit
*by J***R on November 14, 2025*

So far great, still checking and testing unit.

## Frequently Bought Together

- GemOro UltraTester 3+ Diamond Tester | Test Diamond, Moissanite, White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy
- Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K 14K 18K 24K 999 925 Scrap

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**Shop now:** [https://www.desertcart.vu/products/103553420-gemoro-ultratester-3-diamond-tester-test-diamond-moissanite-white-sapphire](https://www.desertcart.vu/products/103553420-gemoro-ultratester-3-diamond-tester-test-diamond-moissanite-white-sapphire)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-03*