1 Troy oz Istanbul Gold Refinery (IGR) Istanbul Refinery Gold Bar. 9999 Fine in Assay. Carries a long-standing tradition of excellence and craftsmanship. With a history dating back to 1996, IGR has become a globally recognized assayer and producer of precious metals, adhering to the highest standards of quality and purity. Each bar contains 1 Troy ounce of. 9999 fine gold and comes encased in protective assay packaging, ensuring its authenticity and purity. The obverse of the bar features the IGR logo along with the weight, purity, and a unique serial number. The bar showcases the exceptional quality and artistry synonymous with Istanbul Gold Refinery, making it an ideal addition to any precious metals collection. Its refined design and verifiable purity make it a trusted choice for both seasoned and new investors alike. Whether you’re a collector or gifting to a loved one, this gold bar embodies the enduring value of precious metals. The product image displayed is a representation of the item you will receive. The bar was tested with a Sigma PMV Pro Mini and is guaranteed genuine.