Diagem Recovers a 6.2 Carat Gem-Quality Diamond and Contests an IBAMA Intervention

Diagem Inc. ("Diagem" or "the Company") (TSX VENTURE:DGE) reports the recovery
of a 6.23 carat gem-quality diamond during bulk sampling at its Chapadao Diamond
Project in Mato Grosso, Brazil. The initial 68.7 cubic metre sample yielded a
total of 102 commercial-size diamonds (i.e. greater than 1.7mm) weighing in
total 24.5 carats for a grade of 0.36 carats per cubic metre. 


"The recovery of a 6.23 carat gem-quality diamond so early in the bulk sampling
program is extremely encouraging, though not unexpected," said Denis Francoeur,
CEO of Diagem.  "High-value coarse diamonds have been recovered by artisanal
miners on the Chapadao. An example is the valuable 9.32 carat pink diamond
purchased by Diagem. What comes as a surprise is the IBAMA intervention and its
obvious inaccuracies. Diagem is seeking immediate correction through legal
means."


Earlier preliminary bulk sampling conducted by Diagem in November and December
of 2006 recovered a total of 849 diamonds coarser than 1.7 millimetres and
weighing 155 carats including a 4.67 carat diamond and eight diamonds ranging
between 1.20 and 1.34 carats. The 13 original bulk samples reported diamond
grades ranging between 0.28 and 1.26 carats per cubic metre with an average of
0.66 carats per cubic metre from 243 cubic metres of material (see press release
dated January 11, 2007).


The lower grade reported in the latest sample is attributed to excessive
dilution due to local displacements which has caused the pinching and swelling
of the diamondiferous layer.  The expectation is that higher grades are likely
to be encountered.


The bulk sampling program is designed to further delineate and determine the
diamond grade of the near-surface diamondiferous kimberlitic ash-fall layer(s)
outlined by auger drilling. The ash-fall diamondiferous layer is interpreted to
be a pyroclastic lappilli kimberlitic tuff(s) deposited as an air fall from the
eruptive explosion of kimberlite(s).  The diamondiferous ash-fall layer varies
in thickness between 0.5 and 2.0 metres (0.6 m on average) and covers an
extensive area that could be mined with the same economic parameters of an
alluvial or gravel deposit.  Auger drilling has extended the deposit(s).


The surface bulk sampling was conducted with two 10 cubic metre per hour
moveable plants. The resulting heavy mineral concentrates are being processed at
the Company's Juina X-Ray Separator facility for the recovery of
commercial-sized diamonds.


Prior to the IBAMA notification, two diamond drills were active on the Chapadao
Property defining the shape and composition of kimberlite craters while at the
same time attempting to intersect the underlying carrot-shaped portion of the
kimberlite bodies ("the diatreme"). See the Company's April 15th, 2008 press
release for an update on the drilling process, the highlight of which is the
recovery of a micro diamond with a pinkish hue from a core sample.


IBAMA Notification

The Company received notification from the Brazilian Federal Agency of the
Environment ("IBAMA") to halt the drilling and bulk sampling program the Company
has commenced at the Chapadao diamond project.  Diagem believes the basis for
the action taken by IBAMA to be erroneous. The notification relates largely to
deforestation caused by third parties prior to Diagem gaining access to the
property.  Diagem had documented the deforestation which had occurred prior to
the commencement of the recent drilling and bulk sampling program and is
providing this information to the relevant authorities.  Furthermore, the
Company has been evaluating the diamondiferous deposits under a License of
Operation from the Mato Grosso State Environmental Agency ("SEMA") and a work
permit from the Brazilian National Department of mineral production ("DNPM").


The Company's Brazilian legal counsel has reviewed the IBAMA notifications and
concluded that:


- the notifications are not in compliance with Brazilian law and amount to
malicious prosecution on the part of the IBAMA agents involved;


- the procedures initiated by IBAMA are abusive and excessive and
disproportionate in relation to the alleged wrongdoing;


- due to their non-compliance with environmental regulations and laws, the
procedures initiated  by IBAMA should be declared null and void.


As a result, the Company is requesting an immediate suspension of the IBAMA
notifications.


This Chapadao project has the potential to become a major job creator for the
community and has the promise of a significant return for the shareholders who
have long supported the Company.  The Company will vigorously pursue any and all
legal means of reversing the intervention with the goal of rapidly resuming
evaluation work on the project


This press release has been reviewed by Christophe Le Noan, M.Sc, Geo., Diagem's
qualified person under National Instrument 43-101.


About Diagem

Diagem Inc. is a publicly listed Canadian exploration-stage company focused on
primary diamondiferous resources in the Juina Diamond Province of Mato Grosso,
Brazil, where it controls a large portfolio of mineral properties.  The Company
has one advanced development stage project and two recently discovered clusters
of kimberlite pipes believed to be significant sources of Juina's historical
alluvial diamond production.


Forward-looking statements

Except for statements of historical fact, all statements in this news release,
without limitation, regarding new projects, acquisitions, future plans and
objectives are forward-looking statements which involve risks and uncertainties.
 There can be no assurance that such statements will prove to be accurate;
actual results and future events could differ materially from those anticipated
in such statements.