Botswana Diamonds’ Campbell on Alrosa exit: no exploration JV lasts forever

Botswana Diamonds is currently in talks with a major diamond producer interested in taking over a stake in Sunland Minerals previously owned by Alrosa. The Sunland joint venture was established in 2014 to test existing Alrosa exploration technology on...

19 november 2018

If real gems are replaced by artificial stones, it is not the difference in value that sellers may cheat you out, but the very idea that you are to obtain along with a jewelry piece made from a genuine stone

Elena Titova is the Director of the All-Russian Decorative Art Museum. The museum, which she heads, was founded fairly recently (less than 40 years ago), but it is one of the most popular and stylish museums of Moscow, famous, among other things...

12 november 2018

“We'll only work with mines and suppliers that can prove full and unquestionable traceability”, assures David Zabinsky, CEO, TRIGEM

Armed with a Bachelor of Science in Government & Legal Studies, and Spanish from Bowdoin College (Maine, USA), a multi-faceted professional, David Zabinsky has both international public and private sector experience, most recently managing an...

06 november 2018

The diamond market sentiment is cautious at the moment, especially in Europe

Born in Switzerland, Angelika Mavridou relocated to Thessaloniki (Greece) with her family, only to establish her own business JEWELLS GALLERY LTD, which was later transformed to S.A. Prior to venturing into her own business, she studied Gemology...

29 october 2018

Zimnisky talks about pink diamonds, De Beers’ Lightbox

An independent diamond industry analyst and consultant said although exceptional and ‘one-off’ diamonds are hard to assign a value to them, the Pink Legacy will likely fetch $2.64 million per carat when it goes under the hammer next month in Geneva...

22 october 2018

Lucara says South Lobe ore to dominate Karowe mine plan

29 june 2018
Lucara Diamond said a mineral resource estimate, which was completed by Mineral Services Canada, shows that its Karowe mine plan in Botswana will now be dominated by the South Lobe ore with the high-grade, high-value (EM/PK(S)) unit becoming increasingly prevalent with deeper mining.
The 1, 109 ct Lesedi La Rona and the 813 ct Constellation stones were recovered from the EM/PK(S)S unit.
“This resource update supports the continued recovery of large high value diamonds from the South Lobe throughout its remaining open pit mine life and the likelihood for underground mining until at least 2036,” said company chief executive Eira Thomas.
“Feasibility work assessing the potential for underground mining, including hydrogeological and geotechnical drilling together with several mining trade off studies is ongoing."
Lucara also said that the indicated mineral resource for the South Lobe of the AK06 kimberlite jumped 54 percent to 6.8 million carats due to the conversion of inferred mineral resources to a depth of 400 metres above sea level.
The mineral resource estimate for the AK06 kimberlite, which was completed by Mineral Services Canada, shows that the remaining indicated mineral resource includes 7.9 million carats, hosted in 57.85-million tonnes at an average grade of 13.7 carats per hundred tonnes (cpht), it said.

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished