GemOro AuRACLE AGT3 Gold (6-24K) & Platinum Tester Kit Newest and most advanced gold tester by GemOro with sleek and contemporary design Test result will be displayed in both Karat value and approximate gold percentage Tests all colors of gold (6-24K) and Platinum. Easy one step calibration with 14K or 18K. Extra soft Jeweler's Supermarket branded polishing cloth included 1 Year manufacturer warranty included