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[ Operations ] [ History of Marine Diamonds ] [ Maps & Photos ]

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This map shows the current DFI marine concessions off the coast of Luderitz Namibia. The established resource of 1.1 million carats exists in the Marshall Fork, Staple Basin/Conical Beach and Diaz Reef areas. The red dots indicated mineralized samples that formed the data for the 2000 feasibility study. The red polygons indicate only some of the prospective areas that DFI feels that has potential to contain further significant diamond resources.

Marine Diamond Mining Operations

Between 2001 and 2004 mining operations on DFI's marine diamond concessions were conducted on an irregular basis under various joint venture and contracting arrangements. In late 2004 DFI acquired its own twin airlift mining vessel, mv DF Discoverer, which began mining on the licence areas in mid 2005, and suspended operations in 2008 due to the economic downturn.

Some of the highlights of this production are as follows:
  • 158,200 carats recovered (Sep 30, 2007) - 95% gem quality.
  • Diamond Sales since June 2004 (to Sep 30, 2007) of S$12.4M with average price US$203 per carat.
  • Special Stones: gem quality 17.42 ct stone; rare 5.26 carat light blue diamond sold for >US$50,000 (US$10,457 per carat), 2.45 carat pink gem sold for US$16,771 per carat).
In 2013, The Company entered in to a joint venture agreement with Afri-Can Marine Minerals Corp. to restart mining on the concessions. As part of the venture agreement, Afri-Can undertook an independent assessment of the resources with ML111. The remaining resources derived from this study are quoted as 413 000 carats in the Indicated and 453 000 carats Inferred categories as below:

Indicated Resources
Cut-off cts/m2 Marshall Forks m2 Marshall Fork cts Marshall Fork cts/m2 Diaz Reef m2 Diaz Reef carats Diaz Reef cts/m2 Total area Total Carats Total cts/m2
0.05 438010 114777 0.26 1974314 298768 0.15 2412324 413545 0.17
0.1 368065 109286 0.3 1239639 244958 0.2 1607704 354244 0.22
0.15 288119 100033 0.35 744783 185737 0.25 1032902 285770 0.28
0.2 239404 91934 0.38 428840 132867 0.31 668244 224801 0.34
0.25 188569 80805 0.43 269447 97937 0.36 458016 178742 0.39
0.3 148728 70086 0.47 184687 75527 0.41 333415 145613 0.44
0.35 88535 51046 0.58 119104 54524 0.46 207639 105570 0.51
0.4 72498 44957 0.62 91827 44434 0.48 164325 89391 0.54
0.45 49965 35504 0.71 63872 32994 0.52 113837 68498 0.6
0.5 31588 26928 0.85 36207 19837 0.55 67795 46765 0.69
0.55 28183 25170 0.89 15774 9126 0.58 43957 34296 0.78
0.6 26065 23934 0.92 3100 1967 0.63 29165 25901 0.89
0.65 21688 21180 0.98 21688 21180 0.98      
0.7 19935 19988 1 19935 19988 1      
0.75 16636 17631 1.06 16636 17631 1.06      
0.8 15147 16470 1.09 15147 16470 1.09      
0.85 14409 15852 1.1 14409 15852 1.1      
0.9 11111 13024 1.17 11111 13024 1.17      
0.95 10828 12764 1.18 10828 12764 1.18      
1 8373 10366 1.24 8373 10366 1.24      


Inferred Resources
Cut-off cts/m2 Marshall area Fork carats cts/m2 Diaz Reef area carats cts/m2 North Bay area carats cts/m2 Totals area carats cts/m2
0.05 41766 32900 0.79 1149208 179755 0.16 1824813 240908 0.13 3015787 453563 0.15
0.1 41766 32900 0.79 805372 154545 0.19 968242 178387 0.18 1815380 365832 0.2
0.15 41766 32900 0.79 473476 115807 0.24 605641 133252 0.22 1120883 281959 0.25
0.2 39188 32424 0.83 295330 85800 0.29 302956 81087 0.27 637474 199311 0.31
0.25 37974 32133 0.85 154916 55168 0.36 95103 36067 0.38 287993 123368 0.43
0.3 31587 30465 0.96 124225 47096 0.38 73315 30120 0.41 229127 107681 0.47
0.35 28939 29630 1.02 84717 34323 0.41 63316 26945 0.43 176972 90898 0.51
0.4 26291 28795 1.1 34599 16279 0.47 49924 21915 0.44 110814 66989 0.6
0.45 23014 27386 1.19 30666 14630 0.48 24661 11191 0.45 78341 53207 0.68
0.5 21185 26545 1.25 4490 2245 0.5       25675 28790 1.12
0.55 20812 26344 1.27             20812 26344 1.27
0.6 20439 26142 1.28             20439 26142 1.28
0.65 20388 26111 1.28             20388 26111 1.28
0.7 20337 26080 1.28             20337 26080 1.28
0.75 20287 26049 1.28             20287 26049 1.28
0.8 20236 26018 1.29             20236 26018 1.29
0.85 20185 25987 1.29             20185 25987 1.29
0.9 19418 25335 1.3             19418 25335 1.3
0.95 18650 24682 1.32             18650 24682 1.32
1 17883 24030 1.34             17883 24030 1.34


DFI's combined license areas cover 719 km2 and carry important additional exploration potential to significantly increase the Company's resource base.
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