Star – Orion South Diamond Project Pilot Core & Sonic Drilling Completed

Press Release

April 15, 2019

George H. Read, P. Geo., Senior Vice President Exploration and Development of Star Diamond Corporation (“Star Diamond” or the “Corporation”) is pleased to announce that Rio Tinto Exploration Canada Inc. (“RTEC”) have completed an HQ core drilling and sonic program, consisting of 3 core drill holes at Star and 23 holes at Orion South (Table 1), and some 2,326.5 metres of sonic overburden drilling from 3 holes at Star and 21 holes at Orion South (Table 2). In total 3,976.52 metres of kimberlite were intersected from 7,056.00 metres of core drilling. This core drilling is required to accurately document the internal stratigraphy of the Star and Orion South Kimberlites in preparation for RTEC’s bulk sampling with the Trench Cutter Sampling Rig. The core drilling program was conducted by George Downing Estate Drilling Ltd. of Grenville, Quebec. RTEC geologists are responsible for the supervision of the drilling program and subsequent core logging. Star Diamond geologists also conduct independent logging of the core. In conjunction with this diamond drill program, geotechnical investigations of the overburden are currently being conducted, at the same locations as the core drilling, by Boart Longyear Inc., utilizing a Sonic drill rig. Detailed geotechnical logging of the core collected by the Sonic rig is being completed by Clifton Associates Ltd.

Table 1: Summary of Core Drilling

Kimberlite	Hole ID	Total Hole	Top of	Base of	Kimberlite
		Depth (m)	Kimberlite (m)	Kimberlite (m)	Intersection (m)*
Star	FALCG011	234	121.89	227.82	105.93
Star	FALCG012	239	117.91	237.81	110.19
Star	FALCG013	228	126.35	227.93	101.58
Orion South	FALCOSG001	243	101.23	241.80	137.37
Orion South	FALCOSG002	276	101.43	274.43	173.00
Orion South	FALCOSG003	306	126.86	304.67	182.02
Orion South	FALCOSG004	240	103.73	237.10	125.26
Orion South	FALCOSG005	321	102.59	313.32	210.73
Orion South	FALCOSG006	276	106.98	276.00	169.02
Orion South	FALCOSG007	273	105.00	269.66	164.66
Orion South	FALCOSG008	595	110.89	562.37	449.48
Orion South	FALCOSG009	243	99.30	234.92	131.82
Orion South	FALCOSG010	262	106.26	251.98	145.72
Orion South	FALCOSG011	246	118.64	233.32	114.68
Orion South	FALCOSG012	282	118.86	273.99	155.13
Orion South	FALCOSG013	270	117.33	263.00	145.67
Orion South	FALCOSG014	339	116.60	333.39	216.79
Orion South	FALCOSG015	252	106.03	244.25	138.22
Orion South	FALCOSG016	225	99.86	216.56	116.70
Orion South	FALCOSG017	235	108.37	215.39	107.02
			1

 

Kimberlite	Hole ID	Total Hole		Top of		Base of	Kimberlite
		Depth (m)		Kimberlite (m)		Kimberlite (m)	Intersection (m)*
Orion South	FALCOSG018	231		108.84		226.40	117.56
Orion South	FALCOSG019	225		103.36		218.36	115.00
Orion South	FALCOSG020	255		100.66		249.05	148.39
Orion South	FALCOSG022	264		115.02		254.75	139.73
Orion South	FALCOSG024	246		123.00		240.34	117.34
Orion South	FALCOSG025	249		102.62		240.13	137.51
Totals		7,056					3,976.52
	* Does not include Kimberlitic Sediments
Table 2: Summary of Sonic Drilling
Kimberlite	Hole ID	Total Hole		Base of
		Depth (m)		Overburden (m)
Star	FALCS011	129.5		91.4
Star	FALCS012	123.4		88.4
Star	FALCS013	129.5		89.7
Orion South	FALCOSS001	111.3		100.3
Orion South	FALCOSS002	105.2		100.3
Orion South	FALCOSS003	123.4		102.8
Orion South	FALCOSS004	108.2		97.7
Orion South	FALCOSS005	105.2		102.1
Orion South	FALCOSS006	120.4		98.7
Orion South	FALCOSS007	114.3		102.1
Orion South	FALCOSS008	124.4		104.5
Orion South	FALCOSS009	99.1		98.1
Orion South	FALCOSS011	123.4		102.1
Orion South	FALCOSS012	123.4		107.9
Orion South	FALCOSS013	115.8		105.8
Orion South	FALCOSS014	111.3		108.2
Orion South	FALCOSS015	111.3		93.0
Orion South	FALCOSS016	105.2		99.1
Orion South	FALCOSS017	111.3		102.1
Orion South	FALCOSS019	108.2		99.8
Orion South	FALCOSS020	105.2		99.1
Orion South	FALCOSS022	71.6		Unknown
Orion South	FALCOSS024	123.4		104.3
Orion South	FALCOSS025	105.2		101.6
Total		2,326.5

Senior Vice President Exploration and Development, George Read, states: “This core and geotechnical drilling program is an important precursor to RTEC’s bulk sampling with the Trench Cutter Sampling Rig scheduled to commence once the warmer weather arrives. The selected locations of these core holes on the Star and Orion South Kimberlites will act as pilot holes for the upcoming program. Core hole FALCOSG008 interescted one of the feeder vents of the Orion South Kimberlite and drilled 449.48 metres of kimberlite before terminating at a total depth of 562.37 metres below surface in dolomite country rock. This deep intersection of kimberlite is consistent with the Orion South geological model prepared by Star Diamond geologists.”

Star Diamond Corporation is a Canadian based corporation engaged in the acquisition, exploration and development of mineral properties. Shares of the Corporation trade on the TSX Exchange under the trading symbol “DIAM”. The Corporation’s Fort à la Corne kimberlites (including the Star – Orion South Diamond Project, or “Project”) are located in central Saskatchewan in close proximity to established infrastructure, including paved highways and the electrical power grid, which provide significant advantages for future mine development. Rio Tinto Exploration Canada Inc. (“RTEC”) refers to Star Diamond’s mineral dispositions in the Fort à la Corne diamond district as Project FalCon.

All technical information in this press release has been prepared under the supervision of George Read, Senior Vice-President of Exploration and Development, a registered Professional Geoscientist in the Provinces of Saskatchewan and British Columbia and Mark Shimell, Project Manager, a registered Professional Geoscientist in the Province of Saskatchewan, who are the Corporation’s “Qualified Persons” under the definition of NI 43-101.

For further information: stardiamondcorp@stardiamondcorp.com or (306) 664-2202

www.stardiamondcorp.com

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