Varvara Dmitrieva: The jewelry industry of Yakutia is distinguished by its creativity, unique cultural code and conservation of traditions

Varvara Dmitrieva, Associate Professor and Head of the Department of Precious Stones and Metals Processing Technologies of the North-Eastern Federal University, told Rough&Polished about the results of the Forum of jewelry Craftsmanship and the prospects...

16 april 2024

Valery Budny: There is no strategy and legislation in Russia enabling the full cycle processing of precious raw materials within the country

Valery Budny, Head of the Jewelry Russia program and CEO of the JUNWEX media holding, told Rough&Polished about the results of the meeting and pressing issues in the precious metals and precious stones (PMPS) and the jewelry sectors.

11 april 2024

Paul Zimnisky: Natural diamonds face the risk of eroding their appeal if constantly discounted

New York-based independent diamond and jewellery analyst and consultant Paul Zimnisky told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that the industry should do away with discounts. He said the industry should treat natural diamonds...

01 april 2024

Edahn Golan: Lab-grown diamond prices to continue declining

In an exclusive interview with Rough&Polished's Mathew Nyaungwa, Edahn Golan, proprietor of the eponymous Edahn Golan Diamond Research and Data, predicted that the prices of lab-grown diamonds would continue to decline, especially at the retail and...

25 march 2024

ADPA’s Ellah Muchemwa: G7 restrictions to bring extra costs from diamond mining to retail

The African Diamond Producers Association (ADPA), which has openly registered its disdain for the G7’s rough diamond trade restrictions, is of the opinion that the move will bring extra costs on all stages, from mining to retail. ADPA executive...

18 march 2024

Anabar Diamonds reveals new details about a large diamond mined in Russia last year

05 february 2024

JSC Anabar Diamonds, a subsidiary of the ALROSA group, announced new details about the largest diamond mined in Russia over the past 10 years.

A gem-quality diamond weighing 390.7 carats was produced at the Mayat diamond mine in the Anabarsky district of the Republic of Yakutia.

Specialists from the Vilyuisk geological exploration expedition of ALROSA, ESO and the Gokhran of Russia studied the diamond and came to the conclusion that this stone is only a fragment of a larger diamond, making up about 25% of its original shape. The original diamond probably weighed up to 1,500 carats.

The diamond does not contain impurities in its structure, in particular nitrogen (quite common in natural diamonds), does not glow in ultraviolet rays and has only one small inclusion.

The diamond found is a light crystal of irregular shape, bordered by a yellow-brown halo - a combination of mass, shape and color that is unique today. Before this, the largest gem-quality diamond weighing 401 carats was found ten years ago, in 2013.

Theodor Lisovoy, Editor in Chief of the European bureau, Rough&Polished