Why may it be cheaper to buy OneGold products than physical metal?

VaultChain Gold and Silver purchased through OneGold accounts represent fractional ownership in London good delivery bars or pooled positions. These bars or positions are purchased directly through wholesalers and often do not carry the premiums associated with smaller, retail products.  U.S. Gold, Silver and Platinum Products consist of physical investment grade retail products. All products purchased through OneGold are physically backed on a 1:1 basis and are typically purchased in large quantities. Therefore, we can offer ownership of these metals at better rates.