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<p>[QUOTE=&quot;Bronwen, post: 9585283, member: 5833&quot;]The short answer is no, often not easy, but if you develop an eye for details as Mirana has outlined them, much of the time you can make a reasonably confident guess.&nbsp; However, coral is probably the cameo material best imitated by glass &amp; plastics.</p><p><br /></p><p>These 3 are all artificial:</p><p><br /></p><p>[ATTACH=full]463009[/ATTACH] </p><p><br /></p><p>The one on the left is probably the one seen most widely.&nbsp; These are the backs of the other two:</p><p><br /></p><p>[ATTACH=full]463010[/ATTACH]</p><p><br /></p><p>With a piece in hand you can gauge a couple of properties not discernible from photos.&nbsp; Sometimes you can tell they are hollow by light weight &amp; empty sound when tapped with a fingernail.&nbsp; You can also try the same tooth test as used for telling genuine pearls from artificial ones.&nbsp; No matter how smooth a highly polished piece of coral feels against the teeth, it will not be as slick as glass or plastic.</p><p><br /></p><p>Best guidance is, if the photos don&#039;t tell a decisive story, only buy with the right to return so you can examine in person.[/QUOTE]</p><p><br /></p>

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