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<p>[QUOTE=&quot;Bronwen, post: 2289985, member: 5833&quot;]It was a really left field notion, but because of the colors it shows in photos, I had to wonder if it was a color change sapphire, as unlikely as that was.&nbsp; They look about like this in daylight; under UV they look deep red with bright green glints.&nbsp; You would have known you had a weird stone in front of you.&nbsp; It&#039;s also unlikely because it&#039;s really, really difficult to engrave sapphire/ruby.&nbsp; Corundum is used to etch other stones.</p><p><br /></p><p>I have been casting around in my mind to see if I can remember stone seals that were faceted on the back, not just glass ones.&nbsp; I do.&nbsp; Some spinner fob seals have a faceted stone, most commonly a citrine.&nbsp; It&#039;s weird to set a faceted gem with the facets covered up in a desk seal.[/QUOTE]</p><p><br /></p>

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