How to test stones when no longer in a setting?

[Cherry Picker]

Over the years I have amassed a fair number of stones from jewelry I have sold or was mangled. Most are stones that were sent back from ARS in Texas when I sold gold, so I know few of them are real. I have a Diamondnite diamond/moissanite tester, but how would you suggest I test a stone that is not in a setting?

 

[markinmichigan]

Holy F++K what a bunch of stones, that's so crazy, you need to meet up with an honest gemologist. If half of those are the real deal, you're on easy street.

Mark in Michigan

 

[cellrdwellr]

Most cheapo diamond testers come with a metal bracket to hold the gems. Like this:

 

[markinmichigan]

Most cheapo diamond testers come with a metal bracket to hold the gems. Like this:

That's a good start. Bought one of those off amazon, not the same as a legit gemologist trained eye. Better than nothing and a good place to start.

Mark in Michigan

 

[Cherry Picker]

Most cheapo diamond testers come with a metal bracket to hold the gems. Like this:
View attachment 587425

Yeah, I got one with my tester but like an idiot I lost where I put it. Maybe I can make one using a nail to make the holes in a piece of tin?

 

[aviationgale]

I see some "foil back" stones, those most likely are glass. Find a good pawn shop or even a jeweler and take a few at a time. They will test them with a persidium tester.