Producer
Alrosa PJSC
Russian state-controlled diamond miner; ~a third of world rough-diamond output. Sanctioned after 2022; G7 banned Russian diamonds.
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Rough diamond mining
Industrial / technical diamond
Other minerals & cutting
Intelligence
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Concentration2024
Rough diamond supply is a near-duopoly: Alrosa and De Beers have together long accounted for most of the world's mined rough, with Alrosa alone producing roughly a third by volume. That concentration turned into a supply-chain crisis when Alrosa — a Russian state-controlled company — was sanctioned after 2022 and the G7 banned Russian-origin diamonds in 2024. Removing about a third of rough supply, and requiring proof that any given diamond is not Russian, forced the industry into an expensive traceability overhaul: origin verification, single-channel routing through Antwerp, and new provenance documentation. The episode exposed how opaque and concentrated the diamond chain is — the industry struggled even to reliably identify which stones were Russian, because once rough is mixed, cut and polished, origin is hard to trace. A single sanctioned miner's output therefore sat behind a large, hard-to-isolate share of the world's diamonds.
Alrosa PJSC ↗Did you know2024
Diamonds are not only jewelry, and that broadens the impact of diamond-supply concentration. Industrial and technical diamond — natural and synthetic — is the hardest abrasive and cutting material there is, used in grinding wheels, drilling and machining bits, semiconductor-wafer dicing, precision optics, and increasingly in thermal management and quantum/electronics applications. The same mined-diamond industry that supplies engagement rings also feeds this industrial-materials chain. So disruptions and sanctions in diamond supply reach into manufacturing and high technology, not just luxury retail — the same crystal that becomes a wedding ring becomes, in another grade, the cutting edge of a tool or the substrate of advanced electronics. A gem chokepoint is quietly also an industrial-materials one.
Alrosa PJSC ↗