http://www.diamonds.co.nz/blog Advice for buying diamonds and diamond education Wed, 27 Oct 2010 04:25:58 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.diamonds.co.nz/blog/507ct-petra-diamond-named/ http://www.diamonds.co.nz/blog/507ct-petra-diamond-named/#comments Mon, 22 Feb 2010 03:28:58 +0000 admin http://www.diamonds.co.nz/blog/507ct-petra-diamond-named/ Petra Diamonds announced that the 507ct rough diamond they found in the famous Cullinan Mine has been named the Cullinan Heritage. The diamond will be placed on tender shortly in Johannesburg and is one of the top 20 largest high quality rough diamonds ever discovered. Sources say it could sell for US$30 million.

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