---
product_id: 295907438
title: "Thermo Gold Testing Stone/Kasauti Stone/Natural Obsidian (2.5 inch x 4 inch x 10 mm Thickness) - Made in Bharat"
brand: "thermo"
price: "B/.16"
currency: PAB
in_stock: true
category: "Thermo"
url: https://www.desertcart.com.pa/products/295907438-thermo-gold-testing-stone-kasauti-stone-natural-obsidian-2-5
store_origin: PA
region: Panama
---

# Compact 2.5" x 4" x 10mm size Natural obsidian for precision Acid-resistant & durable surface Thermo Gold Testing Stone/Kasauti Stone/Natural Obsidian (2.5 inch x 4 inch x 10 mm Thickness) - Made in Bharat

**Brand:** thermo
**Price:** B/.16
**Availability:** ✅ In Stock

## Summary

> 🖤 Test Gold Like a Pro — Don’t Let Doubt Tarnish Your Craft!

## Quick Answers

- **What is this?** Thermo Gold Testing Stone/Kasauti Stone/Natural Obsidian (2.5 inch x 4 inch x 10 mm Thickness) - Made in Bharat by thermo
- **How much does it cost?** B/.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/295907438-thermo-gold-testing-stone-kasauti-stone-natural-obsidian-2-5)

## Best For

- thermo enthusiasts

## Why This Product

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

## Key Features

- • **Heritage of Excellence:** Crafted by THERMO, pioneers since 1958, blending tradition with modern precision.
- • **Premium Natural Obsidian:** Jet black, non-reactive surface offers high contrast for flawless gold purity verification.
- • **Unmatched Acid Resistance:** Withstands corrosive gold testing acids, guaranteeing longevity and reliability.
- • **Precision Meets Portability:** Compact dimensions ensure easy handling and storage without compromising testing area.
- • **Versatile Professional Essential:** Trusted tool for jewelers, pawnshops, trade shows, and personal collections alike.

## Overview

The THERMO Gold Testing Stone is a premium, natural obsidian Kasauti stone measuring 2.5" x 4" x 10mm, designed for precise and reliable gold purity testing. Its smooth, acid-resistant surface ensures durability and accuracy, making it an indispensable tool for professional jewelers and enthusiasts. Crafted in India by THERMO, a trusted name since 1958, this compact and durable testing stone enhances workflow efficiency across jewelry stores, workshops, and trade shows.

## Description

Premium Material: Crafted from genuine natural obsidian, this Kasauti stone features a jet black surface, providing a high contrast background for accurate gold testing. Smooth Surface: Designed with a smooth, non-reactive surface, it ensures precise and reliable testing of gold samples. Convenient Size: Measuring 60mm x 40mm x 10mm, this stone is compact and easy to handle, making it perfect for on-the-go testing and convenient storage. Versatile Use: Ideal for use in jewelry stores, workshops, pawnshops, trade shows, and personal collections, this testing stone is an essential tool for jewelers and goldsmiths. Durable and Reliable: Resistant to the corrosive effects of testing acids, this durable stone remains intact and unaffected during the testing process. Ensure the quality and purity of your gold with this high-quality, natural obsidian Kasauti stone, designed for professional and personal use.

## Features

- Measuring 2.5 Inch x 4 Inch x 10mm Thickness, Gold Testing Stone offers an Ample Testing area for Examining Gold Samples. Its Dimensions Ensure Ease of Handling and Convenient Storage.
- Gold Testing Stone/Kasauti Stone is a Vital Instrument in Jewelry Making. It allows Jewelers to Accurately Verify the Purity to Gold Used In their Creations, Ensuring the Quality and Integrity to their Finished Pieces.
- Acid Resistance: Designed to Withstand the Corrosive Effects to Gold Testing Acids or Solutions, this Stone Remains Durable and Intact Throughout the Testing Process, without Reacting or Dissolving Upon Contact with Acids.
- Premium Materials: Crafted From Kasauti Stone or Natural Obsidian, the Gold Testing Stone/Kasauti Stone Features a Smooth and Non-Reactive Surface, Ideal for Performing Precise and Reliable Gold Purity Tests. These Materials are Selected for their Suitability In Gold Testing Due to their Specific Advantageous Properties.
- Ideal for Use in Jewelry Stores, Workshops, Pawnshops, Trade Shows and Personal Collections, The Gold Testing Stone Offers Fast and Clear Visual Confirmation of Metal Purity, Enhancing Workflow Efficiency.
- THERMO - Pioneering since 1958

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MVZ9KJZ |
| ASIN  | B07MVZ9KJZ |
| Best Sellers Rank | #24,160 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #32 in Massage Stones |
| Brand Name | THERMO |
| Colour | Jet Black with High Contrast |
| Country of Origin | India |
| Country of Origin  | India |
| Customer Reviews | 3.8 3.8 out of 5 stars (230) |
| Date First Available  | 2 April 2018 |
| Generic Name  | Gold Testing Stone | Kasauti Stone |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 6.4 x 10.2 x 1 Centimeters |
| Item Dimensions LxWxH  | 6.4 x 10.2 x 1 Centimeters |
| Item Type Name | Gold Testing Stone | Kasauti Stone |
| Item Weight | 300 Grams |
| Item Weight  | 300 g |
| Item model number  | HVD-8812 |
| Manufacturer | THERMO, Thermo Forg Co. 10/6 Bhaktinagar Station Plot, Rajkot (Gujarat)-360002 (97730-32245) (whatsapp),WEB-www.THERMOINDIA.com // MAIL-info@thermoindia.com |
| Manufacturer  | THERMO, Thermo Forg Co. 10/6 Bhaktinagar Station Plot, Rajkot (Gujarat)-360002 (97730-32245) (whatsapp),WEB-www.THERMOINDIA.com // MAIL-info@thermoindia.com |
| Manufacturer Contact Information | Thermo Forg Co. 10/6 Bhaktinagar Station Plot, Rajkot (Gujarat)-360002 (97730-32245) (whatsapp),WEB-www.THERMOINDIA.com // MAIL-info@thermoindia.com |
| Model Number | HVD-8812 |
| Net Quantity  | 1 Piece |
| Number of Items | 1 |
| Packer  | Thermo Forg Co. 10/6 Bhaktinagar Station Plot, Rajkot (Gujarat)-360002 (97730-32245) (whatsapp),WEB-www.THERMOINDIA.com // MAIL-info@thermoindia.com |
| Packer Contact Information | Thermo Forg Co. 10/6 Bhaktinagar Station Plot, Rajkot (Gujarat)-360002 (97730-32245) (whatsapp),WEB-www.THERMOINDIA.com // MAIL-info@thermoindia.com |
| Part Number | HVD-8812QQ |
| Power Source Type | Corded Electric |
| Product Dimensions  | 6.35 x 10.16 x 0.99 cm; 300 g |
| Style Name | 2.5" X 4" (inches) |
| Unit Count | 1 Piece |

## Product Details

- **Brand:** THERMO
- **Colour:** Jet Black with High Contrast
- **Item Weight:** 300 Grams
- **Power Source:** Corded Electric
- **Style:** 2.5" X 4" (inches)

## Images

![Thermo Gold Testing Stone/Kasauti Stone/Natural Obsidian (2.5 inch x 4 inch x 10 mm Thickness) - Made in Bharat - Image 1](https://m.media-amazon.com/images/I/61RGzhnNvDL.jpg)

## Available Options

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

## Frequently Bought Together

- Thermo Gold Testing Stone/Kasauti Stone/Natural Obsidian (2.5 inch x 4 inch x 10 mm Thickness) - Made in Bharat
- Johnson Tools Gold Testing Stone or Natural Obsidian For Testing Gold Jewellery (Color : Black, shape : Owl)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-09-07*