Grib pipe, Verkhotina occurrence, Zimny Bereg kimberlite field, Zimny Bereg District, Arkhangel'skaja Oblast', Northern Region, Russia

Kimberlite with diamond grades of around 0.7 ct/t (70 to 80 US$/ct).
The pipe was discovered in 1996 and exploration was completed in 2002.
Located 115 km northeast of Arkhangel'sk.

References:
- Kononova, V.A., Golubeva, Y.Y., Bogatikov, O.A., and Kargin, A.V. (2007): Diamond Resource Potential of Kimberlites from the Zimny Bereg Field, Arkhangel’sk Oblast. Geology of Ore Deposits 49(6), 421-441.