Our main role is to inspire consumers to consider diamonds - Jean-Marc Lieberherr

With over 25 years of experience in a variety of leadership positions across many geographies, functions and businesses, Jean-Marc Lieberherr has more than 10 years’ experience as a diamond industry leader, which includes as a Board member of the World...

09 december 2019

Training in diamond valuation is key for artisanal miners

Ian Rowe, the Executive Director of the Diamond Development Initiative (DDI) was appointed in September 2019, having joined DDI as Deputy Executive Director a year earlier. Ian managed field operations in Sierra Leone within this role and led...

02 december 2019

Kangalassi 2.0: Raising the living standards, creating new jobs

At the V Eastern Economic Forum (EEF) held in early September in Vladivostok, the Yakut company SAYBM signed a tripartite agreement with two agencies - the Far Eastern agency and the regional one - for attracting investments and providing export...

25 november 2019

We live in a new dimension of environmental responsibility carried by business

In mid-October, Moscow hosted the VIII Ecological Forum attended by representatives from the State, large industrial companies, scientific and public organizations. The forum delegates discussed the issues related to finding a balance between the socio-economic...

18 november 2019

De Beers’ GemFair delivering ‘positive impacts’ to ASM sector in Sierra Leone – David Johnson

GemFair, a pilot project developed by De Beers to create a secure and transparent route to market ethically sourced artisanal and small-scale mined (ASM) diamonds, is already delivering “important positive impacts” in Sierra Leone. Group head...

11 november 2019

ALROSA will keep matryoshka diamond

22 november 2019

A unique diamond resembling a traditional Russian Matryoshka doll, or a diamond in a diamond, will be included in ALROSA’s collection of rare finds. The stones from the collection are not for sale. It also includes a skull-shaped diamond and a stone similar to a soccer ball mined in recent years.

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                           Image credit: ALROSA
 

The diamond with another one moving freely inside was unearthed at the Nyurba Mining and Processing Division. 
According to scientists, diamond may be over 800 million years old. Despite its complex structure, it weighs only 0.62 carats (0.124 grams) and has maximum dimensions of 4.8 x 4.9 x 2.8 mm. The internal cavity volume is 6 mm3 and the internal crystal volume is 1.6 mm3 with an estimated weight of 0.02 carats (0.004 grams). The inner diamond has a tabular shape and dimensions of 1.9×2.1×0.6 mm.
Specialists of the Yakutsk Diamond Trade Enterprise discovered this unusual diamond during a sorting process.
It is yet to be discovered how exactly such a diamond was formed, but it is assumed that both stones were formed simultaneously.

Victoria Quiri, Correspondent of the European Bureau, Rough&Polished, Strasbourg