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Inventories
 12 Months Ended
Dec. 31, 2019
Disclosure Of Inventories Explanatory [Abstract]  
Inventories
7.
INVENTORIES
 
 
  
 
 
 
 
 
 
December 31,
 
2019
 
 
 
 
 
 
  
 
 
 
 
 
December 31,
 
2018
 
 
 
 
 
 
   
Ore stockpile
  
$
8,592
 
  
$
17,714
 
   
Rough diamonds
  
 
70,190
 
  
 
56,300
 
   
Supplies inventory
  
 
32,990
 
  
 
28,247
 
 
 
 
Total
  
$
                                 111,772
 
  
$
                                 102,261
 
Depreciation and depletion included in inventories at December 31, 2019 is $23,894 (2018 - $21,519).
The amount of inventory expensed approximates cost of sales with respect to production costs incurred, and the cost of acquired diamonds.
Included in production costs, which are included in inventories, for the year ended December 31, 2019 are the Company’s 49% share of payroll and employee benefits for staff of the GK Mine of $38,318 (2018 - $34,017).