Physical form
Arc-melted beads and plain pellets tend to sit at the lower end. Crystalline surfaces, minted shapes, and encapsulated specimens carry processing and presentation premiums.
Understanding osmium prices
Understand how product form, purity, weight and collectibility affect osmium prices. Learn to compare crystalline products, pellets and bars with appropriate caveats.
Osmium buying and pricing guides
Osmium price per ounce
Compare observed osmium vendor rates per troy ounce and gram. Understand 31.1034768 g conversions, actual bar prices and the limits of scaled quotes.
Read the guide →Crystalline osmium vs raw osmium
Understand the price difference between osmium crystals, beads, sintered bars and powder. Compare product forms, seller quotes and certification.
Read the guide →How to buy osmium
A practical osmium buying checklist: compare metal weight, product form, purity, seller evidence, shipping, availability and total cost.
Read the guide →Buyer’s guide
Why osmium prices vary so widely
The metal is only part of the product. These five variables explain most of the spread between a low-cost bead and a presentation-grade crystal.
Purity & assay
A stated “99.95%” is not the same as an independent assay. Documentation, batch traceability, and a credible certificate can materially affect buyer confidence.
Weight
Small samples often cost more per gram because packaging, handling, and seller overhead are spread over less metal. Larger lots can receive a unit discount.
Collectibility
Serial numbers, limited mintages, commemorative designs, and premium housing add numismatic value that should not be mistaken for raw metal value.
Liquidity
An asking price is not a transaction. Osmium has a small specialist market, so sale timing, venue, seller reputation, and fees matter more than they do for widely traded bullion.
Unit conversion
Osmium price per ounce and kilogram
Historical June 2026 reference prices—not current quotes. See the latest stored vendor prices.
The same gram price looks very different at larger units. A troy ounce is 31.1035 grams; the ounce figures below use that standard.
| Reference | Per gram | Per troy oz | Per kg |
|---|---|---|---|
| Pellet median | $53 | $1,648 | $53,000 |
| Bead median | $73.91 | $2,299 | $73,910 |
| Plain bar observation | $77.60 | $2,414 | $77,600 |
| Crystalline median | $300 | $9,331 | $300,000 |
Arithmetic conversions only; they do not imply that kilogram quantities are available or would trade at the same retail unit price.
22.5872
grams per cubic centimeter
Element 76
Small volume.
Exceptional density.
The Royal Society of Chemistry lists osmium’s density at 22.5872 g/cm³ and describes it as the densest element. Its rarity, specialist processing, and unusual physical properties help explain why retail comparisons need more context than weight alone.
Royal Society of Chemistry sourceHandling note
Metallic osmium is not osmium tetroxide.
But the distinction is not a reason to improvise. NIOSH describes osmium tetroxide as highly poisonous and harmful to the eyes, skin, and respiratory system. Do not heat, grind, cut, or chemically treat osmium without professional controls. Read the product’s safety data sheet and use qualified handling guidance.
Read the NIOSH Pocket GuideFrequently asked
Osmium price FAQ
How much is 1 gram of osmium worth?
For common 99.95% retail forms in the June 2026 snapshot, observed prices began around $42.50 per gram. The median was $53/g for engraved pellets and $73.91/g for generic beads. Crystalline products were substantially higher, with a $300/g active-listing median.
Does osmium have a daily spot price?
Not in the same practical retail sense as gold or silver. Osmium products vary by form, purity, provenance, certification, and collectibility, and the specialist market is comparatively thin. A category-specific observed range is more defensible than a single universal figure.
Why do some websites quote much higher osmium prices?
They may be describing crystalline or branded investment products rather than generic metal, or using an administered reference price rather than observed resale transactions. Always compare the same form, purity, unit, and transaction type.
Is crystalline osmium the same as raw osmium?
It is osmium presented in a deliberately formed crystalline surface or object, often with certification and protective housing. Its retail price includes more than elemental metal content, so it should not be benchmarked directly against a plain bead or pellet.
Where does osmium come from?
Osmium belongs to the platinum-group metals and commonly occurs alongside them. The U.S. Geological Survey tracks osmium within its platinum-group metals statistics rather than as a large standalone commodity market.
Is this an appraisal or investment recommendation?
No. These figures describe a dated marketplace sample. They do not guarantee authenticity, resale value, liquidity, or future price performance.