A big round bar or Disc is the largest flat form in which Osmium can be crystallised. It is a flat disc with a diameter of more than 5cm. In the range of Investor's Discs even up to 12.5 cm. It has a perfect price/performance ratio. It is also the Osmium piece with the highest value density, as no processing surcharges for cutting are included in the price.

You can cut well over 200 Osmium diamonds and stars from one Disc (exception: Osmium coin - the smaller 18mm Disc). The Disc is rarely used directly in jewellery. It is increasingly becoming an absolutely safe medium of exchange for wealthy people.