Stellar Diamonds plc marketing presentation Jan 2013

1. ADVANCING DIAMOND RESOURCES
IN SIERRA LEONE AND GUINEA
TOWARDS FEASIBILITY AND PRODUCTION
Marketing Presentation: January 2013
AIM:STEL

2. DISCLAIMER
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Stellar Diamonds plc (the “Company”). Those directors have taken all reasonable care to ensure that the facts stated herein are true to the best of their knowledge,
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PAGE 1

3. DISCLAIMER (contd.)
The Company’s ordinary shares have not been, and are not expected to be, registered under the United States Securities Act 1933, as amended, (the “US Securities Act”) or
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No undertaking, representation, warranty or other assurance, expressed or implied, is made or given by or on behalf of the Company, Daniel Stewart & Company Plc
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omission of any material information for which the directors of the Company are solely responsible.
PAGE 2

4. OVERVIEW OF STELLAR DIAMONDS
Strategic diamond assets in Sierra Leone
and Guinea
JORC compliant resource of c. 4 million carats
compiled in 2012
Implied contained value of $381 million (Oct-12 prices)
Market cap £8.1m
Significant growth potential and a robust
diamond market outlook
Placing to raise up to £1m to fund economic studies
prior to pre-feasibility studies
Tongo gems ($248/ct average run of mine)
PAGE 3

5. FAST TRACK PROGRESS TOWARDS PRODUCTION
2007-2010 2011 2012 2013 2014
Assets acquired,
exploration starts
Bulk sampling &
drilling
4m carat diamond
resource confirmed
Pre-feasibility
studies
Production decision
$10m invested to date to define an inferred 4m carat JORC
resource with an contained value of $381m
PAGE 4
TODAY

6. FOCUSSED IN THE HEART OF THE WEST AFRICAN DIAMOND FIELDS
PAGE 5 Kono licences in dispute

7. OPERATIONS ACTIVITIES DURING 2012
PAGE 6
Droujba: panoramic view
Tongo: 5tph bulk sample plant
* Kono licences subject to dispute
Tongo: core drilling (Boart Longyear)
Kono: Lion-5 kimberlite
Shuttering - Safety 1st
Droujba: Katcha Dyke bulk sampling
Tongo: Rig mobility – rapid interhole
moves (Boart Longyear)
Kono: Inside Lion-5 kimberlite
Droujba: Bulk sampling
Droujba: 5tph bulk sampling plant
Droujba Pit & Bulk sample sites

8. DIAMOND RESOURCE: 4 MILLION CARAT JORC COMPLIANT
Project Resource tonnes
Grade
+1mm
(cpht)
Inferred JORC
carats in
resource
Modelled
average
diamond
value ($/ct)
Implied
contained
value
US$m
In-situ
value $/t
TONGO 895,000 120 1,074,000 248 266 298
DROUJBA 3,960,000 63 2,474,000 38 94 24
KATCHA 319,000 140 446,000 48 21 67
TOTAL 5,174,000 3,994,000 381
PAGE 7
Further resource potential: Tongo
- Dyke-1 increasing resource from 300m to 600m depth could double existing resource
- Dyke 2 (140cpht est.) and Dyke 4 (109cpht and $100/ct) not yet in resource
Further resource potential: Droujba
- Surface grade of 88cpht (diluted) being confirmed at depth could increase existing resource by 40%
- Katcha resource is currently only over a 470m strike length to 150m depth
- Katcha is 5,000m long and to 300m depth could increase the current Katcha resource by 20 times

9. PAGE 8
RISING ROUGH DIAMOND DEMAND DRIVEN BY EMERGING MARKETS
• During the next 10 years, growing GDP and urbanisation in emerging markets plus shifting consumer
tastes will drive rough diamond demand
• Global demand for rough diamonds is forecast to grow annually by a rate of 5.9%
• Diamond supply, from existing or new mines, is predicted to grow annually by only 2.5% until around
2018 when global production will level off and probably decline
• Global Jewellery demand, with a trend towards higher gem diamond content, is forecasted to grow by
35% over the next 5 years
• By 2016, India & China will account for ~30% of incremental global demand. By 2020 this is predicted to
rise to 50% overtaking the USA as the largest diamond jewellery market
• This supply-demand imbalance will drive diamond price inflation
Source: De Beers

10. 2013: NEXT STEPS
PAGE 9
PROJECT Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014
TONGO
(Underground
mining)
Conceptual
economic
scoping study
Conceptual
economic
scoping study
Commence PFS PFS infill drilling
and bulk
sampling
PFS report
Underground trial
mining decision as
ramp up to commercial
production
DROUJBA
(Open pit mining)
Conceptual
economic
scoping study
Conceptual
economic
scoping study
Commence PFS PFS large
diameter
drilling and bulk
sampling
PFS report
Production decision for
open pit operation, 1.5
million carats over 5
years
Note: PFS is estimated to cost $2m+ per project

11. CONCEPTUAL ECONOMIC SCOPING STUDY
• Define preliminary economics and
business case up front
• Focus on mine design, planning and
treatment plant design and processing
options
• Provide capex, opex and financial analysis
• Allows for prioritisation of projects
• Lower funding requirement
• Less risky use of funds
• Provide Board with an independent
validation of project economics
PAGE 10
Trial mine shaft at Kono
- Paradigm Project Management appointed to conduct CESS
- PPM executive team has significant experience in all aspects of
diamond mine development
- Clients include De Beers, Alrosa, Gem Diamonds, Lucara Diamonds,
Rockwell Diamonds, Paragon Diamonds, Trans Hex Diamonds,

12. DYKE-1: FAST TRACK TO UNDERGROUND TRIAL MINING
PAGE 11
Conceptual Economic Scoping Study
• Q1-13 conceptual economic scoping study
• Define economic model to 35% confidence limits
• Scenario of producing 80,000 carats per year, generating potential revenues of $20m/yr for 10 years
• Q3-13 commence pre-feasibility study to 15% confidence limits
• Underground trial mining of Dyke 1 as part of ramp up to commercial scale production
Tongo Dyke-1 diamonds: average modelled value $248/ct
Dyke 1 Resource Model: 1.9km strike to 300m depth

13. W E
CB
Kcm
CBK
DROUJBA PIPE: OPEN PIT MINE POTENTIAL
• Droujba has both open cast and underground mine potential
• CESS aimed at evaluating economics of open pit mine
• Study will concentrate on mine design and planning and
process plant design and treatment operations
• Scenario of producing 300,000 carats per year, generating
revenues of $15m/yr over 5 years
• Followed by pre-feasibility study to 15% accuracy to include
underground resource
• Production decision on open pit operation in Q1 2014
PAGE 12
Conceptual Economic Scoping Study
360m
Open cast potential
Underground
potential
CBK Kcm CB
Extreme case
(US$200/ct)
Base case x1.6
(US$80/ct)
Base case
(US$50/ct)
Droujba open pit showing bulk sample pits
Schematic cross-section of Droujba pipe

14. PROJECT DELIVERY
Stellar has built a focussed and dedicated team
• 3-man executive team
• Core team of experienced project managers
• 8 skilled geologists trained by Stellar over many years
• Significant local employer
Extensive project and diamond experience in West Africa since 2000
Track record of delivering results on time and within budget
PAGE 13
Stellar team at Droujba

15. BOARD & MANAGEMENT
KARL SMITHSON, CHIEF EXECUTIVE OFFICER
Geologist and MBA with 24 years’ African diamond
exploration and development experience, including 12 years
in West Africa. Senior management positions with De Beers,
SouthernEra and African Aura Mining.
ROWAN CARR, CHIEF OPERATING OFFICER
Geologist: MSc. with 26 years’ experience in the diamond
mining industry under De Beers and Stellar where he
managed operations in Botswana, South Africa, Angola, CAR
, DRC, Sierra Leone, Liberia and Guinea.
PHILIP KNOWLES, FINANCIAL CONTROLLER
Qualified accountant and MBA with BA in accounting and
finance. Over 10 years diversified experience, including four
years as Group Financial Controller for both Kopane
Diamonds and Firestone Diamonds.
LORD DARESBURY (PETER), NON-EXECUTIVE CHAIRMAN
Involvement in emerging markets since 1994. Previously
Non-Executive Chairman of De Vere Group plc 2000-2006,
Chairman of KazakhGold Group Ltd 2005-2007 and
Executive Chairman of Highland Gold Mining Ltd 2002-
2004.
Dr. MARKUS ELSASSER, NON-EXEC DIRECTOR
An experienced financer and investor in the natural
resources sector. Director of Arctic Gold and Impact
Minerals. Currently head of the Elsässer Family Office.
LUIS DA SILVA, NON-EXEC DIRECTOR
CEO Afferro Mining and Non-Executive Director of
Aureus Mining. Mining Engineer and MBA with
operational, technical and corporate experience
globally with Blue Circle Industries and Lafarge SA.
STEVEN POULTON, NON-EXEC DIRECTOR
Mining geologist previously with Mano River for 7
years. Co-founder of Ariana, African Aura and Altus
Strategies, CEO of Altus Strategies.
JAMES CAMPBELL, NON-EXEC DIRECTOR
Mining geologist and MBA with 24 years’ experience in
the diamond mining industry under De Beers, where he
held a number of senior positions. Previously
Managing Director of African Diamonds Plc. CEO and
President of Rockwell Diamonds.
PAGE 14

16. USE OF PROCEEDS
Project Use Amount (£)
Droujba Pipe, Guinea Conceptual Economic Scoping Study 300,000
Togo Dyke, Sierra Leone Conceptual Economic Scoping Study 300,000
Working Capital Corporate and in country overheads and contingency 350,000
Placement fees Corporate finance, legal, commissions 50,000
Total 1,000,000
PAGE 15

17. CORPORATE INFORMATION
STRONG NEWSFLOW IN 2012 NOT REFLECTED IN SHARE PRICE
PAGE 16
Stock data 11th January 2013
Ticker AIM:STEL
Share price £0.0275
Shares in issue 294,512,400
Market capitalisation £8.1m
Significant shareholders
Nassim Funds (institutional) 14.0%
Aureus Mining 10.5%
BlackRock 5.6%
Barclays Nominees 4.6%
Directors and management 4.2%
UBS Deutschland (private) 3.6%
Hottinger 3.5%
Capital structure Number of shares
Shares outstanding 294,512,400
Share options 24,453,575
Fully diluted 318,965,975
0
1
2
3
4
5
6
7
8
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13
Share Price - GBp
Droujba
Resouce of
3m carats
Tongo
Resource
over 1m
carats
Board
Dr Elsasser
appointed
Droujba
161cpht from
Katcha bulk
sampling
Droujba
100cpht grade
from bulk
sampling + large
diamonds
Droujba
Encouraging
grades from
bulk sampling
Funding
£2m raised
from issue of
shares
Kono
Licence
dispute
Droujba
2.5m carat
maiden
resource
Tongo
660k carat
maiden
resource
Kono
Encouraging
diamond
grades
Tongo
Encouraging
diamond
grades

18. INVESTMENT CASE
4mcts in resource valued at $381m delivered
in 2012
Low cost economic scoping studies planned
to define business case for pre-feasibility
studies
Key objective of near term production and
revenue
Track record of delivering key milestone
targets on time and within budget
Strong diamond sector fundamentals driven
by emerging market demand
PAGE 17
Tongo gems ($248/ct average run of mine)

19. CONTACT DETAILS
STELLAR DIAMONDS PLC.
355 The Strand
London
WC2R 0HS
KARL SMITHSON
Chief Executive Officer
Tel: +44 (0) 7783 707 971
Email: karl.smithson@stellar-diamonds.com
PHILIP KNOWLES
Financial Controller
Tel: +44 (0) 755 744 4007
Email: philip.knowles@stellar-diamonds.com

20. APPENDIX: KONO KIMBERLITE PROJECT AND LICENCE DISPUTE
Stellar is in dispute with the Ministry of Mines over two
permits covering 87km² adjacent to the Koidu Holdings
(Octea) mine
Company strongly disputes the claims by the Ministry
pertaining to the licences being invalid as all required work
programmes and expenditure have been met
Political avenues being pursued to resolve the situation
Tongo licence renewed in Sept-12 for three years
Kono Licences Progress
• US$19m invested to date in Kono since 2004
• Numerous high-grade kimberlites tested
• 4,200 carats produced from underground trial mining
• High in-situ grades:
– Pol-K: 65cpht
– Lion-5: 90cpht
• High diamond quality:
– Pol-K: US$175/ct (est.)
– Lion-5: US$230/ct
• Subject to satisfactory resolution of the licence dispute Stellar will
re-institute evaluation and resource definition programme
Sierra Leone
Stellar’s Kono Plant site
Pol-K:
10.51ct gem sold for
US$2,700/ct in 2008
Lion-5:
4.45ct gem valued at
US$3,000/ct
PAGE 19