11/08/2026

White Acid Test Stone for Gold Silver Platinum Jewelry Testing 10k 14k 18k 24k

This listing includes: Quantity 1: GTE 2x2 **ULTRA WHITE** PREMIUM PRO TESTING STONE - $20 Retail Value! Essential for testing gold, silver, and platinum! These specially designed high quality testing ultra white test stones can be washed and used again for hundreds of tests. They are designed specifically for testing and leaves a very visible streak when testing gold, silver, and platinum. These stones will not damage the pieces you are testing and feature a rubber backing and are brand new in the original GTE Box! In comparison to the black 2x2 stone, the ultra white GTE stone has increased color change visibility! Testing stone for rubbing metals for testing without leaving a huge mark.
10/08/2026

4 Gold Silver Platinum Jewelry Tester Scratch Streak Stones Acid Testing 14K 18K

These EASY to use genuine lot of 4 GTE Acid Scratch Test Stones are a convenient tool to use with testing acids to determine the karat value and purity of Gold, and Silver Jewelry, scrap, bars, coins, and much more! Simply scratch the test stone with your jewelry and apply a drop of the acid to the stone and watch the results appear! *Our goal is to make testing your jewelry FUN, FAST, and EASY! *Each stone will allow for over 1000 tests! Use the included neutralizer to clean the stones. This 5 Piece kit includes: - GTE Black 3''x6" Test Stone - GTE Black 2''x4'' Test Stone- GTE Black 2''x2'' Test Stone- GTE White 2''x2'' Test Stone. Each with rubber backing to ensure non-slip desktop testing! - Easy to follow instruction booklet with color chart! (Note: Testing acids sold separately)