# Osmium Group > Independent information portal about osmium, the rarest precious metal in the world, and its role as a modern store of value. Topics: properties, current price, buying, investment, comparison with gold and osmium jewelry. Every page exists as clean Markdown at the same URL with `index.md` appended, e.g. `https://www.osmium-group.com/en/osmium-price/index.md`. HTML pages carry `rel="alternate" type="text/markdown"` pointing to it. Facts on this site: osmium is element 76, density 22.59 g/cm³ (highest of all elements), traded in crystalline form since 2017, each piece identified by an Osmium Identification Code (OIC). Prices quoted are net EUR per gram from the official osmium price (osmium-preis.com), updated daily; German buyers pay VAT on top. The site is operated by SEMFLOW GmbH, is not the Osmium-Institut, contains affiliate links marked as advertising and gives no investment advice. ## Start - [Osmium — rare, forgery-proof & in demand](https://www.osmium-group.com/en/index.md): The rarest and densest precious metal in the world — crystalline and forgery-proof. Current osmium price, the famous cube and where to buy certified osmium. ## Buying, price and investment - [Buy osmium — safe, certified & forgery-proof](https://www.osmium-group.com/en/buy-osmium/index.md): Where to buy osmium safely: what to watch for with crystalline osmium, the OIC certificate and denominations — plus a step-by-step guide to a secure purchase. - [Osmium guide — everything that matters at a glance](https://www.osmium-group.com/en/guide/index.md): The osmium guide: everything about the world’s rarest precious metal — from the basics to the current price, buying, investment and jewelry. Independently explained. - [Osmium as an investment — the most exclusive tangible asset](https://www.osmium-group.com/en/osmium-investment/index.md): Osmium as an investment: the world’s rarest precious metal as an exclusive tangible-asset addition — unrivalled rarity, OIC forgery protection and +336% since 2017. - [Osmium price — current rate per gram](https://www.osmium-group.com/en/osmium-price/index.md): Current osmium price: approx. €2,301/g (official reference price). How the rate has developed since 2017 and which factors drive the price per gram. ## Knowledge - [Who is behind Osmium Group](https://www.osmium-group.com/en/about/index.md): Osmium Group is an independent information portal about osmium as a precious metal and store of value. Who is behind the content, how we work and why we are independent of the Osmium-Institut. - [The heaviest metal in the world is osmium](https://www.osmium-group.com/en/heaviest-metal/index.md): The heaviest and densest metal in the world is osmium at 22.59 g/cm³. The full density ranking of metals, the narrow lead over iridium and why “heavy” and “dense” are not the same thing. - [The osmium bar: crystalline osmium in its classic form](https://www.osmium-group.com/en/osmium-bar/index.md): What an osmium bar is, what it weighs, how its price follows the gram price and how it compares with discs, coin disks and squares. With current price and FAQ. - [Osmium in the High-Tech Industry](https://www.osmium-group.com/en/osmium-high-tech/index.md): HighTech-Ready Osmium (HTRO): high-purity osmium (4N–7N) for quantum computing, medical tech & superconductivity research — what it is, price and how to buy. - [The osmium ring: the rarest stable metal on your hand](https://www.osmium-group.com/en/osmium-ring/index.md): An osmium ring carries crystalline osmium with an OIC, the rarest stable metal on Earth. How the price is calculated, wedding rings and authenticity. - [Osmium vs. gold — rarer, safer, denser](https://www.osmium-group.com/en/osmium-vs-gold/index.md): Osmium or gold? The comparison shows osmium’s strengths: rarer than gold, forgery-proof via OIC, the highest density of all elements and a blue-silver shimmer. - [What is osmium? The rarest precious metal in the world](https://www.osmium-group.com/en/what-is-osmium/index.md): What is osmium? The densest of all elements (22.59 g/cm³) and the rarest stable metal on Earth — properties, uses and why it is so sought-after. ## Forms and jewelry - [The osmium cube — heavier than it looks](https://www.osmium-group.com/en/osmium-cube/index.md): The osmium cube shows off the densest metal on Earth (22.59 g/cm³) — even a small cube weighs surprisingly much. Weight comparison and where to buy one certified. - [Osmium jewelry – the rarest precious metal, worn](https://www.osmium-group.com/en/osmium-jewelry/index.md): Osmium jewelry unites the world’s rarest precious metal with a silver-blue shimmer: rings, necklaces, pendants and charms — forgery-proof via OIC and hand-crafted. ## Data - [price.json](https://www.osmium-group.com/data/price.json): current net price in EUR per gram, ISO date, source, fetched daily - [history.json](https://www.osmium-group.com/data/history.json): monthly closing values since March 2017 and daily values for the last 400 days, net EUR per gram - [llms-full.txt](https://www.osmium-group.com/en/llms-full.txt): every page of this edition in one file, for agents with a large context - [agents.md](https://www.osmium-group.com/agents.md): instructions for agents: endpoints, data semantics, rules - [sitemap.xml](https://www.osmium-group.com/sitemap.xml): sitemap index; contains sitemap_pages.xml (all indexable pages with real last-change dates and hreflang pairs) and sitemap_agentic_discovery.xml (the agent files listed here) ## German version - [llms.txt (Deutsch)](https://www.osmium-group.com/llms.txt): German edition of this site, same structure ## Optional - [Site Notice](https://www.osmium-group.com/en/imprint/index.md): Site notice and provider identification of Osmium Group (SEMFLOW GmbH). - [Privacy Policy](https://www.osmium-group.com/en/privacy/index.md): Privacy policy of Osmium Group: which data is processed when visiting the website — hosting (Hetzner), Cloudflare, cookie-free web analytics (Matomo), explained transparently.