14K 18K Gold & Silver JSP Acid Jewelry Testing Kit with GTE Test stone

JSP & GTE Gold and Silver Testing Kit

5-Piece Professional Appraisal Set

This easy-to-use testing kit is built with genuine JSP testing acids, trusted by jewelry and precious-metal professionals since 1980, and designed to accurately determine the karat and purity of gold and silver jewelry, scrap, bars, and coins.

Why JSP Testing Acids Matter

Most entry-level kits rely on small, imported acids that sit too long and lose effectiveness. This kit does not.

• Never imported testing acids
• Manufactured in the USA by JSP, a trusted industry name since 1980
• Full 0.5 oz bottles, up to 3× larger than many competitors
• Always fresh for consistent, reliable results
• Each bottle performs hundreds of tests

Fresh acid matters. Old or diluted acid leads to inaccurate readings. This kit is built for real testing, not guesswork.

Simple, Proven Testing Process

Scratch the item on the test stone, apply a drop of the appropriate testing solution, and observe the reaction. Results appear quickly and clearly using the included color chart and instructions.

What’s Included. 5-Piece Kit

• JSP 14K Gold Testing Acid Solution 0.5 oz
• JSP 18K Gold Testing Acid Solution 0.5 oz
• JSP Silver Testing Acid Solution 0.5 oz

• GTE black 2 x 2 inch Scratch Test Stone
– Non-slip rubber backing for safe desktop testing

• Easy-to-follow instruction booklet with color chart

Built for Portability and Real Use

Compact enough for estate sales, shops, and travel, yet equipped with full-size bottles for long-term value and repeat testing.

Ideal For

• Gold and silver investors
• Jewelry buyers and sellers
• Estate sale and auction shoppers
• Collectors and hobbyists

Test with confidence using fresh, American-made JSP testing acids and proven GTE tools.