Login

Pavel Vinikhin: ALROSA will make a worthy contribution to the revival of the ‘Russian Cut’ Brand

ALROSA is known as the largest diamond mining company throughout the world. However, not everyone is aware that it has its own diamond-cutting division. For a long time, the activity of DIAMONDS ALROSA remained in the shadows, only occasionally attracting...

16 october 2017

William Lamb: Lucara now knows best routes to market large stones

Lucara Diamond recently announced that Graff Diamonds had bought its 1,109 carat diamond Lesedi La Rona for $53 million. The stone, which is the world’s second largest diamond found since the discovery of the 3,106-carat Cullinan diamond in 1905, failed...

09 october 2017

GSI was the first in the world to begin testing of smaller size diamonds in bulk and has never looked back since - Mark Gershburg

With more than 30 years of experience in the gem lab sector under his belt, Mark Gershburg is an industry veteran widely popular in the global gem and jewelry industry. He began his career in 1980 as a grader but his professionalism, creativity, and...

02 october 2017

Gaetano Cavalieri: Over the long term, demand for diamonds is likely to grow at a steady pace

The World Jewellery Confederation (CIBJO) represents the entire jewelry industry embracing a whole variety of companies, from those mining precious metals and gems to those, which are manufacturing and selling final products. The confederation...

25 september 2017

“I am bullish on the future of the diamond business. Three reasons for this optimism... new discoveries, extending mine life and the increasing demand for diamonds”, says Martin Leake

Martin Leake is a PhD exploration geologist and Six Sigma black belt who has been involved in the rough diamond market since 2004. He worked for BHP Billiton for 22 years and recently left Grib Diamonds where he helped set up a world-class marketing...

18 september 2017

Drilling at Botswana’s Kimberlite KX36 shows strong micro diamond results - Petra

15 march 2012

Petra Diamonds said exploration work at kimberlite KX36, which is situated in its Kukama East project area, in central Botswana has shown strong micro diamond results.
It said in a statement emailed to Rough & Polished that 250 diamonds, collectively weighing 0.756 carats, had been recovered from 403.88kg of kimberlite.
The largest diamond was a white, transparent dodecahedron, weighing 0.393 carats, it said.
"These initial drilling and microdiamond analysis results indicate that kimberlite KX36 has significant potential, in terms of its possible size, diamond grade and potential coarse diamond size frequency distribution,” said Petra chief executive Johan Dippenaar.
“The next step is a large diameter bulk sampling drilling programme, commencing in April 2012, in order to obtain further information with regards to grade and an indication of diamond value."
Company technical director Jim Davidson also said that the strong micro diamond results and the favourable coarser diamond size indications for kimberlite KX36 were most encouraging out of the five new kimberlites they had found in Botswana so far.
KX36 was approximately 60km from the nearest known kimberlite, meaning there was the potential for KX36 to be part of a new kimberlite field, he said.

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

Comments

Only registered users can add comments (Register, Login)