Gold Testing Stone & Acid Kit – 10K to 24K Gold & Silver Tester

Verify Gold & Silver Purity at Home with Confidence

The Gold Testing Stone & Acid Solution Kit is an essential tool for jewelry lovers, collectors, and anyone who wants to know exactly what their precious metals are worth. Whether you're buying, selling, recycling, or appraising gold and silver, this portable kit gives you fast, reliable, at-home verification — no professional expertise required. Made in Mainland China.

Why You Need This Kit

• Full-Spectrum Metal Verification: Tests gold karats from 10K, 14K, 18K, 22K, and 24K, plus silver and platinum — giving you complete coverage against counterfeit metals and fraud.
• Non-Destructive Testing Method: The high-hardness touchstone gently gathers a micro-trace from your item. The 10ml testing solution triggers an immediate color-reaction result without damaging rings, pendants, ingots, coins, or bullion.
• Instant Pass/Fail Visual Indication: Real gold leaves a permanent mark on the stone. Fake or high-silver metals dissolve and turn blue upon oxidation, exposing base metal fraud at a glance — no guesswork needed.
• Easy for Everyone: Designed for adults of all experience levels. Ideal for families, jewelry enthusiasts, thrift market shoppers, and collectors verifying heirlooms or finds.
• Safety First: Includes protective gloves to prevent skin contact with the testing solution. Always handle with care and follow the included instructions to avoid contact with surfaces or other objects.

What's in the Box

• 1× Test Stone (7.62 × 4 cm / 3 × 1.6 inch)
• 1× 10ml Gold/Silver Testing Acid Solution
• 1× Pair of Protective Gloves

Specifications

How to Use

1. Put on the included protective gloves before handling any solution.
2. Rub your gold or silver item lightly across the touchstone surface to leave a small trace streak.
3. Apply a few drops of the testing solution onto the streak.
4. Observe the color reaction: real gold holds its color and mark; fake metals or lower-purity alloys will visibly dissolve or change color.
5. Compare results for a clear authenticity determination.

Perfect For

• Verifying jewelry purchases at markets, estates, and auctions
• Testing inherited heirlooms and family jewelry pieces
• Gold and silver coin & bullion collectors
• Jewelry resellers and recyclers
• Gift for jewelry enthusiasts and hobbyists

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Note: Slight color differences may occur due to lighting and display settings. Minor size variations may exist due to manual measurement.

Learn more: MedlinePlus on metal sensitivity

Frequently Asked Questions

Q: Can this gold testing kit test silver and platinum as well as gold?

A: Yes! This kit is designed for full-spectrum precious metal verification, covering gold (10K, 14K, 18K, 22K, and 24K), silver, and platinum. It's a versatile tool for anyone who regularly handles multiple types of precious metals.

Q: Will the acid testing solution damage my jewelry?

A: The kit uses a non-destructive method — you rub a micro-trace of the metal onto the high-hardness touchstone rather than applying acid directly to your item. This keeps your actual jewelry, coins, or bullion safe while still providing an accurate authenticity result.

Q: Is this kit safe to use at home without professional training?

A: Absolutely. The kit is designed for home DIY use and is user-friendly for adults of all experience levels. Always wear the included protective gloves, handle the solution carefully, and keep it away from unprotected surfaces and out of reach of children to ensure safe use.

Q: How do I interpret the color reaction results?

A: After applying the testing solution to your metal streak on the touchstone, observe the reaction: genuine gold retains its color and leaves a permanent mark on the stone. Fake metals or high-silver alloys will dissolve or turn blue upon oxidation, giving you a clear visual indication of the metal's authenticity and purity.