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<p>[QUOTE=&quot;Bronwen, post: 11317962, member: 5833&quot;]Any chance of seeing how the center stone would look with plain white behind it?&nbsp; I agree with evelyb&#039;s thoughts.&nbsp; Based on color alone, my first thought for all the stones was treated topaz.&nbsp; If the appraiser IDed the round stones as diamonds, I have no way to argue with that.</p><p><br /></p><p>As for blue quartz, had to poke around a bit on that.&nbsp; Between the Internet and the gems &amp; minerals book I keep at my elbow, I&#039;m not seeing any gem quality quartz that is this shade of blue, although I can&#039;t entirely rule out the possibility that a technique has been found to produce this color, the way citrine is produced from amethyst.</p><p><br /></p><p>&nbsp; As evelyb said, aquamarine crystals can grow quite large, and since it is beryl, the same mineral as emerald, it lends itself to this type of cut.&nbsp; It also seems more likely to find a large aquamarine accented with diamonds than any quartz, no matter the color.</p><p><br /></p><p>Unless I missed it, the appraisal does not state how the nature of the stones was determined.[/QUOTE]</p><p><br /></p>

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