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<p>[QUOTE=&quot;Bronwen, post: 10333232, member: 5833&quot;]Followed back to the post in the cameo thread because I wanted to see the back for an idea of the age of the setting.&nbsp; I know they did not figure out how to produce blue corundum in the lab until well after they could do it in red, but have never seen exactly when this was.&nbsp; Your jeweller may well be right in any case, but there was a chance that the age of the mount could confirm it.[/QUOTE]</p><p><br /></p>

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