Host To The  Largest Diamondiferous Kimberlites In The Eastern Arctic
Stornoway  Diamond Corporation and BHP Billiton are pleased to announce that they have  entered into an option agreement to further explore BHP Billiton’s 1.04 million acre Qilalugaq Diamond Property  on the Melville Peninsula in Nunavut, where ten diamondiferous kimberlites with  large tonnage potential have been identified since 2003.
The  Qilalugaq Property was acquired by BHP Billiton in 2001 and has undergone  several phases of exploration using airborne geophysics (magnetics,  electromagnetics and gravity surveying) together with property wide till  sampling, drilling and limited minibulk sampling. Eleven kimberlites have been discovered to  date as a result of this work, ten of which have been analysed and have proven  diamondiferous.
The  largest kimberlite identified by BHP Billiton is a complex made up of the  Qilalugaq 1, 2, 3, and 4 pipes which coalesce to form a body with an  approximate area of 14 ha. Other drill confirmed bodies range in size from 0.8  to 11.0 ha based on interpretation of geophysical data. A mini-bulk sample  229.7 dry tonnes of kimberlite extracted from the Qilalugaq 1-4 complex, returned  a total of 61.37 carats, greater than 1.1 mm, indicating a calculated sample  grade of 0.27 c/t. The Qilalugaq 1 body, approximately five ha in size, was not  tested with RC drilling and is therefore under represented in the mini-bulk  sample and may be the subject of future assessment.
 
The  Qilalugaq bodies share geological similarities with the Aviat bodies and appear  to be the same age. The strong working  relationship established between BHP Billiton and Stornoway on the Aviat  project will allow for the quick integration of the existing exploration  datasets and it is the Company’s intention to conduct a short summer field  program at Qilalugaq consisting primarily of prospecting and till sampling  beginning in late July.
Eira  Thomas, President and CEO commented: “We believe that a continued investigation  of the known, large tonnage bodies at Qilalugaq is warranted along with  systematic evaluation of the the prospective, unexplained kimberlite indicator  anomalies with diamond stability chemistry.  The Qilalugaq kimberlites are the largest diamondiferous bodies  identified in the eastern Arctic to date while  the kimberlites identified on our 70% owned Aviat Project are amongst the  highest grade. We see tremendous synergies between Qilalugaq and Aviat and  believe this is a great opportunity to consolidate our exploration efforts on  the Melville Peninsula to the benefit of both  projects”. 
Under  the terms of an option agreement signed between Stornoway and BHP Billiton on  July 10, 2006, Stornoway may earn up to a 50% interest in the Qilalugaq Diamond  Property by spending a total of $9 million before December 31, 2011.  Thereafter, a joint venture will be formed whereby the partners agree to  jointly fund the next $6 million in property expenditures over two years. After $6 million in expenditures have been  incurred, BHP Billiton shall have a one time election to earn a further 15%  interest in the project (bringing its total interest to 65%) by incurring the  next $15 million in expenditures within three years of the formation of the  joint venture.
Stornoway  is one of Canada’s premier  diamond exploration companies with extensive landholdings (approximately 18 million  acres) focused in key project areas in northern Canada  and Botswana. Stornoway has been involved in the discovery  of 63 kimberlites since 2002, 30 of which have proven diamondiferous.
Stornoway’s diamond  exploration programs are conducted under the direction of Robin Hopkins,  P.Geol. (NT/NU), a Qualified Person under NI 43-101.
On  behalf of the Board
STORNOWAY DIAMOND CORPORATION
/s/ “Eira Thomas”
Eira Thomas