Diamond

  

Origin: Udachnaya Mine, Yakutia, Siberia, Russia

Ex. Marty Zinn III collection

Sample size: 4.2 x 4 x 2.4 cm

 

Origin: Premier Mine, Guateng Province, South Africa

Sample size: 4 x 4 x 4 mm

 

  

Origin: De Beers Mine, Kimberly, South Africa

Ex. Ed Ruggiero collection

Sample size: 13 x 11 x 11 mm

 

Origin: Sierra Leone

Sample size: 15 x 15 x 15 mm

 

 

  

Penetration twin

Origin: Bakwanga, Kasai, Democratic Republic of Congo (former Zaire)

Ex. Gilbert Gauthier collection

Sample size: 14 x 13 x 12 mm

 

Origin: Mimy Region, Yakutia, Russia (illustrated in Barlow Collection book)

Sample size: 11 x 11 x 1 mm

 

  

Origin: Trinity County, California, U.S.A.

Ex. John Koivula collection

Sample size: 11 x 10 x 8 mm (left), 8 x 8 x 6 mm (right)

 

Origin: Hayfork Creek from 1974 mining, Trinity County, California, U.S.A. (illlustrated Gems and Gemology, Fall 1990 issue, pp. 212-219)

Ex. John Koivula collection

Sample size: 3 x 3 x 3 mm

 

Oriign: South Africa

Sample size: 7 x 6 x 6 mm

 

  

 

  

 

Origin: Crater of Diamonds, Murfreesboro, Arkansas, U.S.A.

Sample size: 13 x 3 x 2 mm (top left), 5 x 4 x 3 mm (top right), 9 x 5 x 2 mm (2nd row), 5 x 4 x 2 mm (bottom)

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone