---
product_id: 103553420
title: "UltraTester 3+ Diamond Tester | Professional Jewelry Testing Machine"
brand: "gemoro"
price: "$540.92"
currency: USD
in_stock: true
category: "Gem Oro"
url: https://www.desertcart.us/products/103553420-ultratester-3-diamond-tester-professional-jewelry-testing-machine
store_origin: US
region: United States of America
---

# Color-coded LED alerts 4-way gem detection UV-F1 moissanite tech UltraTester 3+ Diamond Tester | Professional Jewelry Testing Machine

**Brand:** gemoro
**Price:** $540.92
**Availability:** ✅ In Stock

## Summary

> 💎 Test Like a Pro, Shine Like a Boss

## Quick Answers

- **What is this?** UltraTester 3+ Diamond Tester | Professional Jewelry Testing Machine by gemoro
- **How much does it cost?** $540.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/103553420-ultratester-3-diamond-tester-professional-jewelry-testing-machine)

## 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

- • **Precision 4-Way Testing:** Confidently identify diamonds, moissanite, CZ, and sapphires with one device.
- • **Instant Color-Coded Alerts:** Green, blue, pink, and red LEDs simplify gem identification at a glance.
- • **Ergonomic & Portable Design:** Comfort grip, retractable probe, and rugged housing for on-the-go pros.
- • **All-Inclusive Professional Kit:** Comes with carrying case, stone holder, rechargeable batteries, and USB-C charging.
- • **Advanced UV-F1 Moissanite Detection:** Detects even super-low conductive Forever One moissanite flawlessly.

## Overview

The GemOro UltraTester 3+ is a professional-grade diamond tester that accurately identifies earth-mined diamonds, moissanite (including low-conductivity types), CZ, and sapphires using advanced UV-F1 technology and color-coded LED indicators. Designed for durability and portability, it includes a complete testing kit with rechargeable batteries and USB-C charging, making it the essential tool for jewelry professionals and serious collectors.

## Description

desertcart.com: GemOro UltraTester 3+ Diamond Tester | Professional Jewelry Testing Machine | Tests earth-mined diamond, CZ, white sapphire, & moissanite with UV-F1 technology + color-coded identification. : Arts, Crafts & Sewing

## Features

- 4-WAY TESTER: Identifies earth-mined diamond, CZ, moissanite, white sapphire, and genuine sapphire watch crystals. Not intended for lab-grown diamonds.
- UV-F1 MOISSANITE TECHNOLOGY: Detects a wide range of electrically conductive moissanite, including super-low conductive Forever One moissanite.
- COLOR-CODED TESTING: LED illumination, UV fluorescence detection, and glowing probe identify Diamond in green, Moissanite in blue, Sapphire in pink, and Metal Alert in red. CZ has no reaction.
- PORTABLE & DURABLE: Ergonomic finger grip, retractable probe tip, impact-resistant housing, and fast warm-up provide convenient professional testing.
- COMPLETE TESTING KIT: Includes carrying case, loose stone holder, cloth, 3 AAA rechargeable batteries, AC adapter, and USB-C power cord.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QUGGK3Y |
| Best Sellers Rank | #54,910 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #15 in Jewelry Diamond Testers |
| Brand Name | GemOro |
| Color | Black |
| Customer Reviews | 3.7 3.7 out of 5 stars (216) |
| Global Trade Identification Number | 00854413003543 |
| Item Dimensions | 9 x 5 x 2 inches |
| Item Highlight | Tests earth-mined diamond, CZ, white sapphire, & moissanite with UV-F1 technology + color-coded identification. |
| Item Type Name | 0776 Ultratester 3+ Diamond, Moissanite & White Sapphire Tester |
| Manufacturer | GemOro |
| Minimum Operating Voltage | 100 volts_of_alternating_current |
| Model | 0776 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 776 |
| UPC | 854413003543 000311063817 081601410351 752913375347 |
| Unit Count | 1 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
- **Min. Operating Voltage:** 100 volts_of_alternating_current
- **Unit Count:** 1 Count

## Images

![UltraTester 3+ Diamond Tester | Professional Jewelry Testing Machine - 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.

## 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.us/products/103553420-ultratester-3-diamond-tester-professional-jewelry-testing-machine](https://www.desertcart.us/products/103553420-ultratester-3-diamond-tester-professional-jewelry-testing-machine)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-28*