“Lab-Grown Diamonds is probably the biggest scam this industry has ever seen,”: Leibish Polnauer, Founder-President, Leibish & Co.

An interesting story from the Leibish & Co takes you way back to the year 1979 when young Leibish Polnauer, then a diamond polisher, was travelling to London, having just found out that the factory at which he worked had been shut down. He found an advertisement...

24 june 2019

Botswana mining industry players speak on speculative exploration licences

Speculative mineral exploration licences was a recurring theme from presentations made by three players in Botswana mining industry at a conference convened in Gaborone. The country has issued thousands of exploration licences, across the mining industry...

17 june 2019

Design is the key to all markets

Besides being an astute businessman, Mumbai-born Laksh Pahuja is a designer par excellence known globally for his awe-inspiring unusual jewellery pieces. Trained at the Gemological Institute of India and Harrow College of Art England, Laksh combines...

10 june 2019

Mutual mass destruction will not serve anybody’s purposes

The recent moves by the U.S. Federal Trade Commission (FTC), including its letters urging some companies to abide to the revised edition of FTC Jewelry Guides and the explanations from FTC attorney Robert Frisby posted on the FTC website were...

03 june 2019

Pavel Sokolov: Every stone has its beauty

THE ‘GEMSTONES BY SOKOLOV’ brand has been popular for over 25 years. The aim of this company is to supply any kind of gem studs to the Russian market including the unique ones except diamonds of any cut. The product range by the SOKOLOV Company is very...

27 may 2019

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