Og oki 100 o wned by Golden Sha r e Loc a t ed in th e James Ba y L o wlands of On t ario app r o xi ma t ely 200 km south w es t of the D eBe er s Vict or Diam ond Min e which w as closed in 2019 DeB eer s w arn ed in 2014 th a t min ed diam ond pr oduction will begin a permanen t d ecline in 2020 if ne w mines ar e not f ound B ain Co Gl oba l Diam ond Report 2017 Ar gyle Diam ond Min e of Rio Tin t o will be closed in 2020 As the bi g g es t diam ond pr oduc er by v olume the Ar gyle mine is at th e c en t er of a glob al o v er supp ly of c heap di amon ds er odin g pr ofits f or nearly e v er y one RBC Ca pit al Mar k e ts pr edict ed the closur e c ould kick s t art pric es diam ond tha t ha v e w aned since 2011 B loom berg 10 22 2019 Shor t t erm cha llen g es c aus ed dia mond minin g r e v enu e to shrink 25 in 2019 Th e diamond ind us try will ha v e a s tr on g er cha nc e to r ebal anc e and gr o w in 2021 B ain Co Gl obal Diam ond Report 2019 T S XV GSH ww w GoldenSh ar ec a 7