Portable Diamond Gem Tester Pen – Jeweler Tool With Gemstone Platform – Selector

So, you think that rock is a diamond?

This little pen tester will tell you for sure.

It's a portable diamond and gem selector.

Just place the stone on the platform and use the pen to test.

It's brand new in its original packaging.

Whether you're a jeweler, a pawn shop owner, or just someone who hits up a lot of estate sales, this tool is a must-have.

No more guessing—get the facts.

UPC 644730638791.