World’s largest Diamond in over 100 years

TOMRA Sorting Mining congratulates Lucara Diamond Corp. (Lucara) upon the recent recovery of a magnificent 1111 ct type IIa diamond using TOMRA XRT (X-ray transmission) technology at their Karowe Mine in Botswana (Fig.). The diamond, which is the second largest gem quality diamond in history and the largest ever to be recovered through a modern processing facility was recovered by a TOMRA LDR (large diamond recovery) machine utilizing X-ray transmission sensors which was commissioned at Karowe earlier this year. The value of the Diamond is not yet assessed.

Paul Day, Chief Operating Officer at Lucara Diamond Corp. said: “We selected TOMRA XRT following an extensive suite of test work which demonstrated TOMRA XRT technology as a superior technological solution having the highest efficiency of diamond recovery. TOMRA’s technology detects all types of diamonds and has a remarkably small footprint in terms of power and water consumption.” Six TOMRA XRT sorters are in operation at the Karowe Diamond Mine since May 2015 replacing conventional Dense Media Separation (DMS) technology in the -60 to + 8 mm size range. Each sorter can treat up to 150 t/h at over 8000 h/y. Advantages of the XRT technology include its compact footprint, low operating costs, high recovery rates and extremely low concentrate yields. There is no need to further process the sorter’s concentrate before final hand sorting.



Related articles:

Issue 07-08/2019 Record-breaking

TOMRA XRT Technology recovers 1758 carat diamond

One of the largest diamonds in recorded history, an unbroken 1758 carat stone, was recovered by TOMRA XRT sensor technology commissioned by Lucara Diamond Corp at its Karowe Mine in Botswana. The...

Issue 09/2021 Yield guaranteed

XRT Final Recovery solution that guarantees final pure diamond concentrate

T?OMRA Sorting Mining has launched the new TOMRA COM XRT 300 /FR Final Recovery sorter, which delivers concentration factors up to 1 million with limited stages and is the only solution on the market...

Issue 01-02/2013

CommodasUltrasort at Electra Mining as TOMRA Sorting Solutions

CommodasUltrasort, the mining division of internationally renowned Norwegian-listed, TOMRA Systems ASA, exhibited at Electra Mining (10.-14.09.2012 in Johannesburg/South Africa) under its new name...

Issue 03/2017

New diamond testimonial video campaign

TOMRA Sorting Mining introduced a new video testimonial series on 6th March 2017. Created in collaboration with Lucara Diamond, this visual-media initiative is designed to explain the impact TOMRA’s...

Issue 07-08/2020 Digital offer

TOMRA introduces virtual demonstration and test sessions

E?nsuring business continuity at this time is of paramount importance for mining operations. This includes taking forward ongoing investment projects in sorting equipment to improve their efficiency...