{{Short description|Large diamond}} {{Infobox gem | name = Oppenheimer Diamond | image = Oppenheimer Diamond.jpg | caption = Oppenheimer Diamond displayed in the Smithsonian Institution | type_of_stone = diamond | weight = {{cvt|253.7|carat|g}} | dimensions = {{cvt|20|×|20|mm|in}} | color = yellow | type = | cut = (uncut) | facets = | country = South Africa | mine = Dutoitspan Mine | found = 1964 | cutter = | original_owner = | owner = | value = }} The '''Oppenheimer Diamond''', a nearly perfectly formed {{cvt|253.7|carat|g}} yellow diamond crystal, is one of the largest uncut diamonds in the world,<ref name="Smithsonian Institution">{{cite web |title=Oppenheimer Diamond [117538] |url=https://geogallery.si.edu/index.php/en/1054705/oppenheimer-diamond |publisher=Smithsonian Institution |access-date=2013-06-29}}</ref> and measures approximately {{cvt|20|×|20|mm|in}}. It was discovered in the Dutoitspan Mine, Kimberley, South Africa, in 1964.<ref name="Smithsonian Institution" /> Harry Winston acquired the stone and presented it to the Smithsonian Institution in memory of Sir Ernest Oppenheimer.<ref name="Smithsonian Institution" />
<gallery widths="280px" heights="128px" > File:Oppenheimer Diamond 03 (cropped).jpg|{{center|Oppenheimer Diamond}} File:DiamanteEZ.jpg </gallery>
==See also== * List of diamonds
==References== {{reflist}}
==External links== {{Commonscat}} *[https://naturalhistory.si.edu/explore/collections/geogallery/10002807 Oppenheimer Diamond] at the Smithsonian, with better closeup photos *[http://www.glitteringstones.com/Images/oppenheimer-diamond.jpg Another view] *[https://web.archive.org/web/20140826115556/http://www.sberatel.info/public/clanky/kameny_g/12_b.jpg Third closeup]
Category:Oppenheimer family Category:Jewelry in the Smithsonian Institution Category:Diamonds originating in South Africa Category:1964 in South Africa Category:Yellow diamonds Category:Individual diamonds
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