Look, we all know, deep down, that cash is becoming a little…ahem…vulnerable, so why not get ready for the coming funny money age by investing in one of these RS Mizar Gold & Diamond Testing Kits? You can test pure and alloy gold up to 24K, distinguish gold plate from solid, and identify platinum, diamond and synthetic diamonds like Zirconia or Moissanite on demand. Suddenly you’re a powerful person in your hood. $395.95.

 The RS Mizar M24 Electronic Gold Tester is an indispensable tool for jewelry professionals, jewelry lovers, flea market visitors, and for the rest of us—whenever we are not 100% sure.