Botswana resource conference presentation 26 june 2012 - final

1. Rediscovering
the Diamond Potential of
the Kalahari
Jim Davidson, Technical Director
Petra Diamonds

2. Important Notice
These Presentation Materials do not constitute or form part of any invitation, offer for sale or subscription or any solicitation for any
offer to buy or subscribe for any securities in the Company nor shall they or any part of them form the basis of or be relied upon in
any manner or for any purpose whatsoever.
These Presentation Materials must not be used or relied upon for the purpose of making any investment decision or engaging in an
investment activity and any decision in connection with a purchase of shares in the Company must be made solely on the basis of
the publicly available information. Accordingly, neither the Company nor its directors makes any representation or warranty in
respect of the contents of the Presentation Materials.
The information contained in the Presentation Materials is subject to amendment, revision and updating in any way without notice or
liability to any party. The presentation materials contain forward-looking statements which involve risk and uncertainties and actual
results and developments may differ materially from those expressed or implied by these statements depending on a variety of
factors. No representation or warranty, express or implied, is made as to the fairness, accuracy or completeness of the information
or opinions contained herein, which have not been independently verified.
The delivery of these Presentation Materials shall not at any time or in any circumstance create any implication that there has been
no adverse change, or any event reasonably likely to involve any adverse change, in the condition (financial or otherwise) of the
Company since the date of these Presentation Materials.
The Presentation Materials are confidential and being supplied to you for your own information and may not be reproduced, further
distributed, passed on, or the contents otherwise divulged, directly or indirectly, to any other person (except the recipient’s
professional advisers) or published, in whole or in part, for any purpose whatsoever. The Presentation Materials may not be used for
the purpose of an offer or solicitation to subscribe for securities by anyone in any jurisdiction.
2

3. Discover Petra Diamonds
3
Cullinan
July 2008
Block Cave
16yr Mine Plan
+50yr Potential Life
Williamson
November 2008
Open Pit
17 yr Mine Plan
+50yr Potential Life
Kimberley UG
May 2010
Block Cave
11yr Mine Plan
+12yr Potential Life
Finsch
Block Cave
18yr Mine Plan
+25yr Potential Life
Koffiefontein
July 2007
Front Cave
14yr Mine Plan
+20yr Potential Life
September 2011
Petra has acquired the following five diamond mines from De Beers:
• The largest quoted pure diamond mining group (LSE: PDL) – member of FTSE 250
• One of the world’s largest diamond resources at +300 million carats
• Diversified portfolio – five major kimberlite mines and three fissure mines in production
• Exceptional growth – objective to increase production to over 5 million carats by FY 2019
• Provides direct exposure to the positive long term fundamentals of the diamond market

4. Proven Track Record – Continuous Growth
4
0.0
0.5
1.0
1.5
2.0
2.5
FY
2007
FY
2008
FY
2009
FY
2010
FY
2011
FY
2012
Gross Production Profile
Strong
production
growth due
to Finsch
acquisition
Mcts
Major increase
due to higher
volume Cullinan
mine
0
50
100
150
200
250
300
350
FY
2007
FY
2008
FY
2009
FY
2010
FY
2011
FY
2012
Gross Revenue Profile
US$
million
Acquisition
of
Koffiefontein
Recovery
in rough
diamond
prices &
sale of 507
ct Cullinan
Heritage
Finsch
contribution
boosts
revenue
Decreased
revenue due to
the economic
downturn
Q3 FY 2012
Q3 FY 2012
* The above columns suggesting full year FY 2012 production and revenue levels are for illustrative purposes only and are not market forecasts
*
*

5. A Diversified Portfolio
• Focus on Africa – source of 60% of the world’s diamonds by value
• Eight producing mines – provides flexibility in terms of portfolio performance
• Kimberlite exploration programme in Botswana
5

6. Focus On Botswana
• Africa’s premier mining jurisdiction
• World’s largest diamond producer by
value
• Superb geological prospectivity
• Stable politically and attractive fiscal
regime
• Easy logistics
• Transparent land tenure system
Petra Diamonds Botswana
• Petra Diamonds Botswana holds major
diamond exploration landholding of
22,250km² – all ‘on craton’
• Team operates a highly focused and cost
effective exploration programme
• Recent discovery of KX36 – LDD drilling
programme underway to further evaluate
this potentially high grade discovery
6
!
!
!
!
!
!
!
!
!
!
!
!
!
CKGR
Maun
Orapa
Gweta
Serowe
Kokong
Toteng
Palapye
Jwaneng
Khutswe
Gaborone
Letlhakane
Letlhakeng
Francistown
Legend
Petra Diamonds Botswana
Licences and Folios
Other Diamond Licences
0 300150
Kilometers
¯

7. Historical Precious Stones Licences - 1983
7

8. Historical Precious Stones Licences - 1989
8

9. Historical Precious Stones Licences - 1990
9

10. Historical Precious Stones Licences - 1996
10

11. Historical Precious Stones Licences - 2004
Folio1
Folio1
Folio1
27/98
8/2004
PL51/98
20/2002
Folio1
26/98
PL82/99
28/98
Wati
Folio
PL45/99
PL45/99
50/2004
PL72/99
PL73/99
PL74/99
27/2003
PL81/99
PL94/99
19/2003
55/2001
18/2003
PL44/99
PL75/99
PL21/98
Folio32B
PL43/99
111/2002
Folio32A
PL47/99
PL95/99
PL9/2002
PL102/99
PL33/99
PL125/2002
PL2/2002
PL3/2002
56/2001
57/98
Folio47L1
PL52/2003
100/2002
PL51/2003
PL74/2001
PL96/99
PL101/97
PL50/99
PL43/2001
PL70/99
PL64/2002
PL69/2002
PL60/2002
PL59/2001
PL98/2002
PL97/2002
PL62/2002
PL53/2003
PL70/2001
PL68/2002
PL48/99
PL99/2002
PL10/2002
PL54/2001
PL14/2002
PL71/2002
PL50/2002
PL72/2001
PL21/2002
PL24/2003
PL25/2003
PL23/2003
PL73/2001
PL66/2002
PL30/2003
PL24/2001
PL62/2003
PL108/2002
PL14/2001
PL88/2002
PL20/2003
PL21/2003
PL60/2001
PL67/2002
PL28/2003
PL61/2002
PL44/2003
PL32//2003
PL92/2002
PL89/2002
PL11/2002
PL22/2003
PL22/2002
PL41/2003
PL51/2002
PL46/2002
PL43/2002
PL37/2002
PL34/2002
PL45/2003 PL46/2003
PL62/2001
PL58/2001
PL63/2001PL61/2001
PL43/2003
PL47/2003
PL42/2003
PL23/2001
PL54/2002
PL33/2002 PL35/2002
PL38/2002
PL42/2002
PL57/2003
PL40/2000
PL47/2002
PL12/2002
PL25/2001
PL85/2002
PL41/2002
PL60/2003
PL26/2001
PL28/2001
PL27/2001
PL19/2002
PL83/2002
PL55/2002
PL64/2003
PL22/98
PL117/2002
PL118/2002
PL59/2002
PL68/2001
PL114/2002
PL113/2002
PL119/2002
PL46/2001
PL45/2002
PL121/2002
PL122/2002
PL123/2002
PL124/2002
PL115/2002
PL44/2002
PL13/2002
PL104/2002
PL72/2002
PL112/2002
PL65/2002
PL29/2003
PL110/2002
PL76/2001
PL55/99
PL116/2002
PL67/2001
PL58/2002
PL29/2001
PL49/2002
PL120/2002
PL22/2001
PL10/2001
PL45/2001
PL103/2002
PL15/2001
PL36/2003
PL106/2002
PL63/2002
PL24/2000
PL52/2002
PL63/2003
PL73/2002
Folio64A3
PL86/99
PL9/2004
PL102/2002
PL16/2000
PL1/2003
PL92/96
PL2/2003
PL66/2001
PL55/2003
PL37/2003
PL54/2003
PL17/2002
PL75/2001
PL56/99
PL94/2002
PL107/2002
PL95/2002
PL49/99
PL34/99
PL91/99
Folio32C
PL104/97
PL18/2002
PL111/99
Folio64A1
PL39/2002
PL36/2002
PL32/2001
PL48/2002
PL67/99
PL51/2001
PL93/2002
PL96/2002
PL53/2002
PL44/2001
PL24/98
PL49/2001
PL109/97
PL47/2000
PL109/2002
PL52000
PL91/2002
PL46/2000
101/2002
PL68/99
Folio43
PL48/2001
PL74/2002
Folio47L2
PL91/96
PL34/2001
Folio65A2
PL21/2001
PL90/99
PL28/2000
PL39/99
PL20/2000
PL84/2002
Folio44a
PL103/99
PL102/97 PL103/97
PL19/2001
PL60/99
PL37/99
Folio65A2
PL87/99
PL64/99
PL15/2003
PL40/2002 PL26/2000A
PL65/99
95/97
PL59/99
PL17/2000
PL108/96
PL30/2002
PL59/98
PL51/2000
PL85/99
PL88/96
PL40/2003
PL16/2001
PL64/2001
PL37/97
PL38/97
Folio65A1
PL4/2003
PL83/99
PL26/2000
PL59/2003
PL29/2002
Folio64A2
PL12/2003
PL23/2002
PL11/2001
PL31/2001
Folio47L3
PL36/2001
PL108/99
PL37/2001
PL56/2003
PL36/99
51/2004
PL49/2003
PL77/99
PL41/99
PL24/2002
PL47/2001
PL6/2000
PL16/2002
49/2004
PL116/99
Folio65A3
PL38/99
PL58/2003
PL19/2000
13/2003
PL28/2002
PL100/99
PL90/2002
PL44/2000
PL99/99
PL105/2002
30/98
PL53/2001
PL38/2003
PL35/99
PL31/2003
PL61/2003
PL50/2001
PL71/2001
PL69/2001
PL107/97
7/2000
PL3/2000
PL20/2001
PL76/99
96/97
PL52/2000
PL18/2001
ML10/71
PL16/2001
PL71/2001
13/2003
PL53/2001
PL18/2000
Folio2PA&B
PL50/2003
PL44/2000
7/2000
PL83/99
PL67/98
PL48/2003
PL33/2003
PL98/99
PL66/99
PL84/99
PL100/99
PL90/96
PL56/2002
PL83/99
PL105/99
Folio65A3
PL5/2003
PL40/99
PL25/2000
PL38/2000
PL39/2003
PL4/2002
101/2002
PL34/2003
PL27/2000
PL106/96
PL13/2001
Folio64A3
Folio44b
PL39/99
PL87/99
PL2/2000
PL26/2003
Folio64A2
PL126/2002
PL69/2001
PL32/99
PL97/99
13/2003
PL110/99
Folio64A1
PL83/99
PL4/2000
PL100/97
Jwag Mi
PL115/99
PL115/99
13/2003
PL65/2001
PL89/99
Folio65A3
PL35/2001
PL70/2003
Folio 58
PL71/2001
PL83/99
PL50/2000
53/2000
PL39/2000
13/2003
PL29/2002
PL106/97
PL50/98
PL100/97
PL107/96
PL89/96
PL6/2003
PL30/2001
PL41/99
Folio65A3
PL115/99
PL115/99
PL40/99
PL99/99
PL99/99
PL107/99
62/98
Folio65A1
PL101/99
PL48/2000
PL35/99
PL50/2003
PL23/2000
PL61/98
PL4/2002
PL37/99
PL2/97
PL64/2004
PL87/2002
PL35/99
PL53/2001
PL109/96
PL92/96
Folio2PA&B
PL63/2003
PL63/2003
PL31/2002
PL14/2000
PL11/2000
PL67/98
PL89/99
Folio 58
PL11/2000
PL103/97
PL35/99
PL16/2003
PL87/2002
96/97
PL105/97
PL66/99
PL106/99
PL29/2002
PL53/2001
PL97/99
PL32/99
PL107/96
PL101/99
PL71/2001
PL3/2003
60/98
Folio65A3
PL35/99
PL27/2002
PL39/2000
PL85/99
PL21/2000
PL26/2002
Folio64A1
PL98/99
PL91/96
51/2004
PL31/2002
Port2
PL48/2003
PL32/99
PL40/99
PL64/99
RTL1/2001
PL106/99
PL39/2000
PL53/2001
PL97/97
PL99/97
PL3/2000
Folio 58
PL86/99
PL67/98
PL66/99
PL17/2003
PL26/2002
PL103/99
ML8/75
PL52/2000
PL107/96
PL31/99
PL104/99
PL38/2000
PL35/2003
PL4/2000
95/97
PL17/2001
PL102/96
PL1/97
PL48/2003
95/97
PL31/99
PL50/2003
PL102/96
PL64/99
60/98
PL12/2001
PL40/99
PL85/96
PL110/99
PL26/2002
PL57/2001
PL31/2002
PL98/99
PL50/98
PL126/2002
PL5/2003
PL61/98
PL98/96
PL97/97
PL3/2000
PL48/2003
PL3/2000
PL98/96
PL35/2003
PL35/2003
PL53/98
PL110/97
PL98/99
PL90/96
PL107/96
PL25/2002
Port1
PL93/96
PL35/2003
PL105/99
PL2/97
PL22/2000
PL50/98
PL110/99
PL35/2003
PL6/2003
PL110/99
PL88/99
PL4/2000
PL100/97
PL70/2003
PL65/2001
PL101/99
PL65/2001
PL88/99
PL86/2002
PL26/2002
PL26/2002
PL26/2002
PL25/2002
PL25/2002
PL25/2002
PL25/2002
PL31/2002
PL107/99
PL107/99
PL37/99
PL35/2003
PL89/96
PL89/96
PL109/99
PL103/96
PL63/98
PL63/98
PL97/97
PL35/2003
22.000000
22.000000
26.000000
26.000000
-26
.000000
-26.000000
-22
.000000
-22.000000
-18
.000000
-18.000000
Areas held under Reconnaisance Permits, Prospecting Licences and Mining Leases
as at 26th July, 2004
0 500250
Kilometers
11

12. The Search For KX36

13. 13
Regional Aeromagnetics
Xcalibur high resolution dataGovernment data
5 km 5 km

14. KX36
New Kimberlite Discovery
• Initial drilling and micro-diamond sampling campaign
indicated:
• Initial modelled (undiluted) diamond grade
between 75-180 cpht (J Ferreira / MSA)
• Indications of a reasonably coarse diamond size
distribution from MiDA modelling (J Ferreira /
MSA)
• Surface area interpreted to be ~5 ha under 78m of
Kalahari overburden
• LDD drilling and bulk sampling campaign has now
commenced
• Results expected later in the year
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface); Deposit open at depth 14

15. 15
KX36 Magnetics
Standpipe magnetics with drill rig
in the background
Elephant Rig on
KX36

16. ±
0 100 20050
Meters
Garnets
0
1
2
3 - 6
>6
Deflation Sampling Results: Garnets
9 samples,
28 garnets
16
N

17. ±
0 100 20050
Meters
Chromites
0
1
8
Deflation Sampling Results: Chromites
9 samples,
10 chromites
17
N

18. KX36 Garnets
Cr-Ca Mineral Chemistry
G10 G9
ECLOGITIC
Cr2O3wt%
CaO wt%
Cr-Ca
All garnets
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0 2 4 6 8 10
18

19. MEGACRYSTS
GROUP 1
ECLOGITES
GROUP 2
ECLOGITES
KX36 Garnets
Ti-Na Mineral Chemistry
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.00 0.05 0.10 0.15 0.20
Na2O wt%
TiO2wt%
19

20. Cr2O3wt%
TiO2 wt%
Cr-Ti
All Chromites
KX36 Chromites
Cr-Ti Mineral Chemistry
25
30
35
40
45
50
55
60
65
70
75
0 2 4 6 8 10
20

21. TiO2wt%
MgO wt%
KX36 Ilmenites
Ti-Mg Mineral Chemistry
30
35
40
45
50
55
60
0 2 4 6 8 10 12 14 16 18 20
KNK
KX36
Drill Core
KE02
Def. Sample
21

22. KX36
CPX - PT Plot
25
35
45
55
65
600 700 800 900 1000 1100 1200 1300 1400
P(kbar)
Temp (ºC)
Gph
Dia
36 38 40 42 44
22

23. • The rock is classified as a hypabyssal-facies, coherent, macrocrystic, altered
phlogopite kimberlite
• Based on the grain size of the groundmass, euhedral, opaque spinels (up to 0.07 mm)
this kimberlite is petrographically rated as high interest with respect to diamond
potential
• The development of the kimberlites indicates the intervention of hypabyssal crystallization
by a process known as second boiling. This process is likely to put an end to diamond
oxidation and should therefore be seen as a positive process with regard to diamond
preservation
23
KX36
Petrographic Assessment (by Mike Skinner)

24. Total Diamond Content Model for
KX36 MiDA sampling. Red dots
represent combined sample
broken down into size classes.
Solid black line represents total
diamond content model.
(modelling by Mr. J Ferreira, MSA
Geoservices).
No. of Diamonds according to Sieve Size Fraction (mm)
Hole Sample
ID
Weight
(Kg)
+75 +106 +150 +212 +300 +425 +600 +850 +1180 +2360 No. of
Diamonds
H4 80-125 19.98 0 0 4 2 2 1 0 0 0 0 9
H4 125-170 20.46 0 0 4 4 3 1 0 0 0 0 12
H4 170-215 20.14 0 1 2 0 0 2 0 0 0 0 5
H4 215-232 20.08 0 2 2 3 2 0 2 0 0 0 11
H5 83-128 20.66 0 0 1 0 6 2 0 0 0 0 9
H5 128-173 20.12 0 4 7 3 1 0 0 1 0 0 16
H5 173-218 20.34 0 2 4 6 2 3 0 0 0 1 18
H6 81-126 20.16 0 2 4 3 1 1 2 0 0 0 13
H6 126-171 20.02 0 0 2 1 0 0 0 0 0 0 3
H6 171-216 20.62 1 1 4 0 1 0 0 1 0 0 8
H6 216-242 20.02 0 7 4 1 2 3 0 0 0 0 17
H7 77-122 20.24 0 0 4 2 1 0 0 0 1 0 8
H7 122-167 20.08 0 8 6 8 3 0 1 0 1 1 28
H7 167-212 20.2 0 0 7 5 2 1 3 0 0 0 18
H7 212-257 20.1 0 1 5 1 5 0 0 0 0 0 12
H7 257-302 20 0 3 6 3 2 1 3 0 0 0 18
H7 302-347 19.98 0 0 2 1 0 1 1 0 1 0 6
H7 347-392 19.96 0 0 3 1 1 2 0 0 0 1 8
H7 392-437 20.12 1 3 4 3 2 2 2 0 1 0 18
H7 437-482 20.6 0 6 3 1 2 0 1 0 0 0 13
TOTAL 403.88 2 40 78 48 38 20 15 2 4 3 250
KX36
MiDA
24

25. Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface)
KX36
Completed Delineation Drilling
25

26. Extension of holes for
Geotechnical assessment of wall rock
Total: 1,680m
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface)
KX36
Planned Delineation Drilling
(shallow & geotechnical)
26

27. Total: 1,920m
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface)
KX36
Planned Delineation Drilling
(intermediate & geotechnical)
27

28. Total: 2,400m
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface)
KX36
Planned Delineation Drilling
(deep)
28

29. Completed
In Progress
Planned
Total: 1,550m
(+/- 740 tonnes)
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface)
KX36
Initial 24” LDD Sampling
29

30. Total: 1,240m
(+/- 590 tonnes)
KX36
Proposed Infill 24” LDD Sampling
Calcretized Kimberlite
Weathered Kimberlite
Fresh Kimberlite
516m
Tonnage estimate of between
28Mt and 34Mt to base of Deposit
(516m below surface) 30

31. Some “Classics ”
• “No kimberlite has been intersected and it is considered
highly unlikely that any kimberlites are located within this
area”
• “It is quite possible that the grains recovered in this license
come from elsewhere having been transported by aeolian
and fluvial forces”
31

32. How many more?
……we’ve only just begun!
3232
15 km

33. Further enquiries:
Petra Diamonds
Cathy Malins
cathym@petradiamonds.com
+44 20 7318 0452
www.petradiamonds.com