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TrueAssay

Gold Testing Kit – 14K, 18K with 2x4 Test Stone & Silver

Gold Testing Kit – 14K, 18K with 2x4 Test Stone & Silver

$13.99 USD
$19.99 USD $13.99 USD
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The High-Karat Gold Testing Kit

Purpose-built for buyers who handle high-karat gold. Pinpoint 14K and 18K gold with precision and neutralize acid residue between tests for consistently clean, accurate results. Perfect for coin dealers, bullion buyers, and jewelers working with fine gold.

What's Included

  • TrueAssay 14K Gold Testing Solution
  • TrueAssay 18K Gold Testing Solution
  • TrueAssay Silver (.925/.999) Testing Solution
  • 2x4 Black Testing Stone with non-slip backing
  • Freshly mixed, US-made, tamper-evident bottles

How to Test High-Karat Gold

  1. Rub your item on the testing stone to leave a visible gold streak.
  2. Apply a single drop of the karat solution directly onto the streak.
  3. If the streak stays, your item is that karat or higher.
  4. Work up from 14K to 18K to pinpoint the exact karat.

For silver: Use the silver solution and read the reaction using your silver color and fading guide (fine, sterling, lower-grade, or not silver).

Who This Is For

  • Coin and bullion dealers handling fine gold
  • Pawn shops and precious metal buyers
  • Resellers sourcing imported or high-karat gold
  • Collectors verifying investment-grade pieces

Why TrueAssay

  • Freshly mixed in the USA — potent, reliable reactions
  • High-karat coverage — 14K and 18K gold in one kit
  • Trusted by thousands of Amazon and Shopify buyers

Frequently Asked Questions

Will this damage my gold? No. Testing happens on the stone, not on your item.

How many tests per bottle?

  • Small — 150–200 drops
  • Medium — 300–400 drops
  • Large — 400–550 drops

Can I buy refills separately? Yes — individual TrueAssay solutions and neutralizer are available in our store.

Safety First

These solutions contain strong acids. Wear gloves and eye protection, work in a ventilated area, and keep away from children and pets. In case of skin contact, rinse immediately with plenty of water. See the included SDS for full handling details.

Disclaimer

Acid testing is a screening method. For high-value items, confirm results with XRF analysis or a certified assay.

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Trusted by Industry Professionals

  • Lab-Tested Quality

    Each batch is formulated to professional-grade testing standards used by jewelers and refiners.

  • Fast U.S. Shipping

    Orders ship same-day from Atlanta, GA. Most U.S. customers receive in 2 to 5 business days.

  • Helpful Customer Support

    Questions about testing technique or kits? Reach our team for guidance before and after your purchase.

Frequently Asked Questions

How do I use the testing solution?

Rub the metal on a testing stone, apply a drop of acid to the streak, then compare the color reaction to the standard chart for that karat.

How fast does my order ship?

Orders placed before 2 PM EST ship the same business day from Atlanta, GA. Most U.S. orders arrive in 2 to 5 business days.

Are these solutions safe to handle?

Our acid solutions are professional-grade and should be handled with gloves and eye protection in a well-ventilated area. SDS sheets are available on request.

What's your return policy?

Unopened items can be returned within 30 days of delivery. Opened acid bottles cannot be returned for safety and shipping reasons.