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Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2019
Aug. 20, 2019
Document And Entity Information    
Entity Registrant Name GraniteShares Gold Trust  
Entity Central Index Key 0001690437  
Document Type 10-K  
Document Period End Date Jun. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --06-30  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business Flag false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Public Float $ 546,619,500  
Entity Common Stock, Shares Outstanding   39,750,000
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2019