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Istanbul Gold Refinery: frequently asked questions
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Istanbul Gold Refinery (IGR) is a Turkish precious metals refinery located in Istanbul, Turkey. It produces investment-grade gold and silver bars sold through bullion dealers internationally. IGR bars are stamped with weight, purity, and a unique serial number, and are recognised by dealers and vaults in major bullion markets.
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IGR produces investment gold and silver bars across a range of weights, from small gram bars up to larger cast bars. The bars are stamped with weight, purity, and a unique serial number. BullionFerret currently tracks 7 IGR listings across participating dealers.
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Each IGR bar carries a unique serial number stamped on the bar or its packaging. IGR's official website includes a serial number verification tool where buyers can confirm the bar's authenticity, weight, and purity. Always cross-reference the serial number against the assay certificate supplied with the bar.
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IGR bars are produced to investment-grade purity standards, with fineness and weight stamped on each bar. The accompanying assay certificate confirms the purity of each piece. For the specific fineness of a bar you are considering, check the bar's markings and assay card, or the product listing from your dealer.