---
product_id: 148297008
title: "Pongnas Ouchstone Portable Gold Test Stone (Large) - Silver, Ideal for Jewelry, Antique Gold, Silver, Platinum Collectibles - Changes Color Based on Purity"
brand: "pongnas"
price: "€ 23.25"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/148297008-pongnas-ouchstone-portable-gold-test-stone-large-silver-ideal-jewelry
store_origin: HR
region: Croatia
---

# Portable design Color-changing acid Tests multiple purities Pongnas Ouchstone Portable Gold Test Stone (Large) - Silver, Ideal for Jewelry, Antique Gold, Silver, Platinum Collectibles - Changes Color Based on Purity

**Brand:** pongnas
**Price:** € 23.25
**Availability:** ✅ In Stock

## Summary

> 💰 Discover the True Value of Your Treasures!

## Quick Answers

- **What is this?** Pongnas Ouchstone Portable Gold Test Stone (Large) - Silver, Ideal for Jewelry, Antique Gold, Silver, Platinum Collectibles - Changes Color Based on Purity by pongnas
- **How much does it cost?** € 23.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/148297008-pongnas-ouchstone-portable-gold-test-stone-large-silver-ideal-jewelry)

## Best For

- pongnas enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Take your testing tool anywhere with ease.
- • **Color-Coded Confidence:** Watch the acid change color to reveal purity levels.
- • **Versatile Testing Power:** Perfect for gold, silver, and platinum items.
- • **User-Friendly Experience:** Simple application for quick and reliable results.
- • **Unleash Your Inner Appraiser:** Easily test jewelry and collectibles with precision.

## Overview

The Size Precious Metal Test Stone is an essential tool for anyone looking to verify the authenticity of their jewelry and collectibles. With its color-changing acid solution, it allows for easy testing of various purities, including 10K to 24K gold, silver, and platinum. Its portable design makes it perfect for on-the-go appraisals, ensuring you never miss an opportunity to uncover hidden value.

## Description

Pongnas Ouchstone Portable Gold Test Stone (Large) - Silver, Ideal for Jewelry, Antique Gold, Silver, Platinum Collectibles - Changes Color Based on Purity

## Features

- Acid changes color based on purity. Very easy to use
- Ideal for testing jewelry, coins, antique gold, silver, platinum collectibles
- This touchstone is used to verify the gold content in items
- This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, silver, and platinum pure
- Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue

## Images

![Pongnas Ouchstone Portable Gold Test Stone (Large) - Silver, Ideal for Jewelry, Antique Gold, Silver, Platinum Collectibles - Changes Color Based on Purity - Image 1](https://m.media-amazon.com/images/I/714DgCRcd7L.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.hr/products/148297008-pongnas-ouchstone-portable-gold-test-stone-large-silver-ideal-jewelry](https://www.desertcart.hr/products/148297008-pongnas-ouchstone-portable-gold-test-stone-large-silver-ideal-jewelry)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-25*