In September, Plant № 16 belonging to Nyurba GOK (mining and concentrating mill) recovered a diamond weighing 158.2 carats. Rough&Polished received this information from ALROSA. The diamond’s size is 35x22x22 millimeters. This is a natural crystal roundish in shape, transparent and having prominent facets on one of the sides. The central part is clean, with no visible defects; there are inclusions of dark color, cracks and a technical chip in the peripheral area.
According to the experts from ALROSA’s Diamond Sorting Center, this diamond may be sold at a price exceeding $1.5 million if put on auction. If cut, this rough diamond may produce several polished diamonds having high quality characteristics, and each of them may be worth hundreds of thousands of U.S. dollars.
In recent years, due to the technical innovations introduced by ALROSA the safety of recovered diamonds was improving and the number of damaged crystals reduced. The fact that this diamond was retrieved intact attests to professionalism of miners and dressers and a high level of processing equipment.
Exclusive
Sarine’s David Block: Diamond Industry at Standstill Until Chinese Demand Returns
David Block is CEO of Israel’s Sarine Technologies and has served in the position since 2012. In this exclusive interview for Rough and Polished, Block gives his opinion on the leading issues affecting today’s diamond trade.
11 september 2024
Dr M'zée Fula Ngenge: Demand for considerable-sized diamonds stronger than ever
The African Diamond Council (ADC) chairperson Dr M'zée Fula Ngenge told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that although overall global diamond prices have been somewhat soft, the demand for considerable-sized diamonds...
02 september 2024
Amplats sees prospects as a standalone company
Anglo has revealed its plans to demerge Anglo American Platinum (Amplats), which has operations in South Africa and Zimbabwe, to optimise shareholder value. Rough&Polished contacted Amplats to comment on this and other issues but was referred...
19 august 2024
WFDB President Yoram Dvash Remains Confident Despite Global Diamond Challenges
Yoram Dvash is President of the World Federation of Diamond Bourses (WFDB) having been elected in 2020. He found time in his busy schedule to speak to Rough&Polished about the state of the diamond industry around the world and some of the major...
12 august 2024
Lyudmila Vysotskaya: Amber is a mystical stone, a living substance
Lyudmila Vysotskaya is a Kaliningrad-based amber artist and designer, expert, chairwoman of the Amber Academy and member of the Creative Union of Artists in Decorative and Applied Arts. This summer, visitors could admire the art works by Lyudmila Vysotskaya...
30 july 2024
