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	<updated>2026-09-30T03:20:31Z</updated>
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		<id>https://ideawaza.com/index.php?title=Archive:Chalk_Emerald&amp;diff=39854</id>
		<title>Archive:Chalk Emerald</title>
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		<updated>2008-11-03T23:13:32Z</updated>

		<summary type="html">&lt;p&gt;66.190.25.143: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;The &#039;&#039;&#039;Chalk Emerald&#039;&#039;&#039; is a 973.82 [[Carat (mass)|carat]] (7.564 g) [[Colombia]]n [[emerald]].  &lt;br /&gt;
&lt;br /&gt;
It originally weighed 38.40 carats (7.68 g), but was recut and set in a ring, where it is surrounded by sixty pear-shaped diamonds (totalling 15 carats (3 g)), by [[Harry Winston]] Inc. The ring is housed in the National Gem and Mineral Collection at the [[Smithsonian Institution|Smithsonian]] [[National Museum of Natural History|Natural History Museum]] in the [[United States]] and was donated to the museum by Mr. and Mrs. [[O. Roy Chalk]] in 1972. &lt;br /&gt;
&lt;br /&gt;
==External links==&lt;br /&gt;
&lt;br /&gt;
* http://www.internetstones.com/claire-roy-chalk-emerald-ring.html&lt;br /&gt;
* http://famousdiamonds.tripod.com/chalkemeraldring.html&lt;br /&gt;
* http://www.ks.uiuc.edu/~tskirvin/pics/trips/DC-2006/NaturalHistory-2006.02.20/tn/img_2330.jpg.html&lt;br /&gt;
&lt;br /&gt;
[[Category:Named emeralds]]&lt;/div&gt;</summary>
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