At the 11th International Kimberlite Conference, a report made by senior research scientists at the Gemological Institute of America (GIA) believes the 1,109-carat Lesedi La Rona — the second largest rough diamond ever found — actually weighed at least 2,774 carats before it fractured into five pieces during the sorting process at Lucara's Karowe mine in Botswana in November 2015. Report to be find on this link: http://11ikc.com/long_abstract/11IKC%20Long%20Abstracts/11IKC_46

"A UNIQUE OPPORTUNITY TO OWN A PIECE OF HISTORY" Graff. This week, Graff Diamonds revealed his first hands of 67 diamonds it plans to polish from the 1,109-carat Lesedi La Rona rough diamond. After a year of analysis followed by the cutting and polishing process has resulted in 67 finished gems, ranging in size from under a carat to in excess of 100 carats from the rough, a Graff Diamonds spokesperson said. Graff is now alerting its clients that they can purchase jewels with

The rights to the world’s most expensive rough diamond, the 813-carat diamond dubbed “The Constellation”, has been purchased by Swiss jeweler De Grisogono. To mark the opening of the 28th Biennale des Antiquaires, de GRISOGONO is delighted to announce the acquisition of The Constellation, the world’s most expensive rough diamond, at a press conference held in the Grand Palais 10 may 2016. The purchase represents a ground-breaking moment for the company in its journey to becom

After 1905, when the 3,106.75-carat rough “Cullinan Diamond” was discovered at the Cullinan Mine near Pretoria, South Africa. We had to wait till 16 November 2015 to discover “Lesedi La Rona”, at 1,111 carats, it is the second largest diamond ever extracted from our planet Earth. What does Lesedi La Rona mean? On 18 January 2016, Chief Executive Officer William Lamb of Lucara Diamond announced a competition, open to all Botswana citizens, to name the stone. In addition to nam