Geomechanics.io

  • Free Tools
Sign UpLog In
AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy

Geomechanics.io

Geomechanics, Simplified.

© 2025 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects

    Diamond crash 2025: supply, closure and price signals for mine planners

    December 29, 2025|

    Reviewed by Tom Sullivan

    Diamond crash 2025: supply, closure and price signals for mine planners

    First reported on MINING.com

    30 Second Briefing

    Diamond mining was hit hard in 2025 as De Beers reported a steep revenue fall, accumulated about $2 billion in unsold natural stones and moved to cut over 1,000 jobs while Anglo American advanced plans to sell the business and merge with Teck Resources. Russia’s Alrosa saw profits drop nearly 80% and halted operations at key sites, while smaller miners entered administration or closed pits as lab-grown diamonds eroded prices. Botswana’s Debswana will cut output by up to 40% in 2025, and producers under the Luanda Accord pledged 1% of annual revenues to a global marketing push for natural stones.

    Technical Brief

    • De Beers’ parent Anglo American plans to divest the unit while pursuing a merger with Teck Resources.
    • Alrosa’s ~80% profit collapse triggered suspension of operations at several unspecified “key sites” in Russia.
    • Multiple unnamed junior diamond miners have gone into administration or fully closed pits as margins vanished.
    • De Beers has shut down its Lightbox lab-grown jewellery brand, reallocating spend to natural-diamond marketing.
    • Under the Luanda Accord, signatories must ring‑fence 1% of diamond revenues for collective promotion.
    • Botswana, as Africa’s largest natural diamond exporter, now faces rising unemployment and fiscal stress from reduced sales.
    • Debswana’s planned 2025 output cut responds directly to both weak demand and lab‑grown price competition.
    • Analysts link demand weakness to luxury slowdown in China and oversupply of synthetics, not only Western sentiment shifts.

    Our Take

    With Debswana signalling output cuts of up to 40% in Botswana while Alrosa in Russia faces an 80% profit plunge, our database suggests African producers may gain relative bargaining power in Luanda Accord marketing decisions as Russian supply becomes less commercially flexible.

    The NovaAndino Litio JV controlling Atacama salar lithium through to 2060 places Chile’s Atacama desert in the same long-horizon strategic bracket as key battery-metals assets we track, meaning Anglo American and Teck Resources’ portfolio choices will increasingly be judged against lithium returns rather than legacy diamond exposure.

    Among the 15 diamond-tagged pieces in our coverage, this is one of the few that explicitly links diamond market distress with lithium growth in Chile, underscoring how capital may rotate from mature luxury commodities into long-duration energy-transition projects in the Atacama salar.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    NioCorp’s Elk Creek mine portal approval: schedule and access notes for engineers
    Mining
    2 days ago

    NioCorp’s Elk Creek mine portal approval: schedule and access notes for engineers

    NioCorp Developments’ Board has approved the Mine Portal Project for the Elk Creek critical minerals project in Nebraska, establishing the main underground mine entrances that will handle all personnel, equipment and materials access. The portal complex will be the primary interface between surface infrastructure and the planned underground operation targeting niobium, scandium and titanium, enabling subsequent development of declines, services and ventilation circuits. Early works on the portal will be critical for scheduling shaft sinking, underground construction and future production ramp-up.

    Historic gold, silver price rally: project economics lens for mine planners
    Mining
    3 days ago

    Historic gold, silver price rally: project economics lens for mine planners

    Gold, silver and platinum hit fresh records on Friday, with spot gold touching $4,540/oz, February Comex futures peaking at $4,584/oz and March silver futures jumping over 9% to $78.30/oz, as palladium surged 13% to above $2,000/oz. Gold is heading for a >70% annual gain, driven by robust central bank buying and ETF inflows, including SPDR Gold Shares (GLD) increasing its holdings by more than 20% and physically backed funds taking in $82 billion (749 tonnes) by 22 December. Silver has rallied 160% in 2025 amid an October short squeeze, ongoing supply dislocations between London and New York vaults, and a pending US Commerce Department probe that could impose tariffs or trade restrictions.

    New York copper price surge and Shanghai record: supply shocks explained for mine planners
    Mining
    3 days ago

    New York copper price surge and Shanghai record: supply shocks explained for mine planners

    Copper prices surged again on Friday, with London Metal Exchange contracts hitting a record $12,282/t before the Christmas break and Shanghai Futures Exchange prices briefly touching 100,000 yuan/t (~$14,270/t), creating a sharp premium over New York. Comex March copper climbed more than 5% to $5.903/lb (~$13,000/t), its highest since July’s short squeeze, as 2025 production was hit by accidents at Grasberg, Kamoa-Kakula and Codelco’s El Teniente. BMO now projects an average $12,500/t by Q2 2026, while Goldman Sachs still sees a 160 kt surplus capping prices at $10,000–$11,000/t.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.