Message:

<p>[QUOTE=&quot;Lucille.b, post: 10224156, member: 51&quot;]I have the &quot;Diamond tester II, same as the OP&#039;s. These testers are cheaply made machines and I don&#039;t think all are perfectly calibrated.&nbsp; Mine was $12 on Ebay with free shipping. At least for the one I purchased, I need to set the tester at 5-6 or the diamond doesn&#039;t register. (Note: If you set the machine too high you can get false positives.)&nbsp; So I always do the experiment with a genuine diamond first, set it just to the point where it registers, check it twice and then test the item in question.&nbsp; I haven&#039;t had it fail me.</p><p><br /></p><p>I&#039;d be curious if other people can just set their inexpensive testers to zero and have it work. Maybe it&#039;s time for a new machine.</p><p><br /></p><p>Either way, I think comparing the machines reaction to a real diamond first is a good practice.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in