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<p>[QUOTE=&quot;KSW, post: 4383217, member: 8708&quot;]If it’s like the photo I posted I would think it sounds like the bracelet is silver. </p><p>I don’t know how long you should leave it&nbsp; before it becomes invalid.&nbsp; As suggested above I think you should test a few known items of varying carat to see what reaction you get.</p><p>With gold testing I look at the reaction I get within a few seconds. If it’s still there 30 secs or a minute later you are probably good to go. </p><p>Disclaimer that I am a total amateur and it may be that it should be left longer. </p><p>I watched lots of YouTube videos![/QUOTE]</p><p><br /></p>

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