GTE Gold & Silver Jewelry Tester Kit — Touchstones, Acid Reagents for 10K–24K and 999/925 Purity

GTE Gold Silver Jewelry Tester Appraisal Kit is a complete, portable solution to verify karat and purity for gold and silver pieces quickly and safely.

If you need a dependable way to check jewelry without risking damage or sending items to a lab, this all-in-one GTE kit delivers touchstones, reagents, and a neutralizer for fast on-the-spot appraisal. The kit supports common karats (10K, 14K, 18K, 22K, 24K) and purity marks like 999 and 925, letting collectors, resellers, hobbyists, and estate buyers make informed decisions in minutes.

How does the kit determine gold and silver purity?

The kit uses acid reagents applied to a scratch mark on a GTE touchstone to compare how the metal reacts versus known karat standards. A neutralizer included in the set clears residue so you can retest quickly without cross-contamination.

• Two large 2" x 4" GTE jewelry touchstones for safe, non-destructive testing
• Acid vials tailored to 10K, 14K, 18K, 22K, 24K gold identification
• Silver reagent for 999 and 925 evaluations
• GTE neutralizer to clean the stone between tests

What accuracy and speed can I expect using this kit?

When used as instructed, the tester gives rapid, visually clear results in seconds by comparing streak color and reaction strength. It’s designed to be consistent for common alloys, though microscopic or plated items may require professional lab verification.

• Immediate visual comparison on the touchstone after applying reagent
• Large stones reduce risk of damaging delicate pieces
• Neutralizer accelerates cleanup for multiple sequential tests
• Suitable for quick checks at markets, home, and estate sales

Is the kit safe for my jewelry and easy to use?

The included touchstones let you test with minimal surface abrasion—only a small scratch is needed for an accurate result. Clear instructions and labeled reagents make the process approachable for beginners while remaining reliable for professional buyers.

• Touchstones protect jewelry by minimizing contact and surface damage
• Labeled reagents reduce user error during testing
• Compact kit layout is portable and organized for field use
• Instructions enable repeatable results with a little practice

How do I interpret results and what are limitations?

Compare the color and dissolution on the stone to the expected reaction charts: stronger or unchanged marks indicate higher purity. Keep in mind plated items, heavy alloys, or surface treatments can mask true purity, and this kit complements—rather than replaces—professional assays when absolute certainty is needed.

• Use comparison charts provided to match reactions to karat levels
• Retest after neutralizing the stone for consistency
• Non-uniform alloys may require multiple scratch points
• Send high-value or ambiguous pieces for laboratory assay if needed

Who is this for: The GTE Gold Silver Jewelry Tester Appraisal Kit is ideal for jewelry dealers, pawn shops, estate sale buyers, metals investors, hobbyists, and anyone who needs fast, reliable metal identification without specialized equipment. It’s a practical tool for people who inspect many pieces, work on a budget, or want a portable solution to make confident purchase and resale choices.