Aerial view of a dense forest canopy
Responsibility

Caring for Nature

Nature is a foundation of our work and a constant source of inspiration.

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Our commitment

Caring for nature means integrating environmental responsibility into the way we operate, through actions that are measured, documented, and continuously improved.

As a company working with precious materials, NIRU recognises the responsibility that comes with sourcing, transforming, and preserving natural resources. Protecting ecosystems and supporting the communities connected to our operations are part of this commitment.

Our approach covers climate action, renewable energy, responsible water management, waste reduction, and biodiversity protection. These priorities are embedded across daily operations and long-term strategy, rather than managed as separate initiatives.

2025. The Thailand manufacture achieved ISO 14001:2015 certification, followed by Sri Lanka in early 2026.

  • Climate actionReducing emissions across operations and the wider value chain.
  • Renewable energyIncreasing the use of renewable sources across our manufactures.
  • Water managementManaging water responsibly through efficient use and recovery practices.
  • Waste reductionImproving resource efficiency through reduction, recovery, and reuse.
  • BiodiversityProtecting natural ecosystems connected to our operations.

Climate & Carbon

Measuring
the full footprint.

The group's carbon footprint has been measured across Scopes 1, 2, and 3 by Environmental Resources Management since 2021. Reporting covers both direct operations and value-chain emissions, with achievements and targets clearly distinguished.

Results

Footprint

46,239

Greenhouse gas footprint in tonnes CO2e, Scope 1, 2 and 3.

2024 · GHG Protocol

Scope 1

54%

Absolute Scope 1 emissions below the 2023 base year, ahead of the near-term schedule.

2024

Most of the group's carbon footprint originates beyond its own operations. Scope 3 accounts for 97.8% of total emissions, with purchased goods and services representing 92%. Addressing these emissions requires collaboration across the supply chain and is central to the group's reduction pathway.

Climate commitments · approved 2 June 2025 · criteria version 5.2

Scope 1 reduction

42%

Absolute reduction of Scope 1 greenhouse gas emissions, from a 2023 base year.

By 2030

Renewable electricity

100%

Active annual sourcing of renewable electricity, raised from 28% in 2023.

By 2030

Suppliers

75%

Of suppliers by spend, covering purchased goods and services, with science-based targets.

By 2029

Reviewed and approved by the Science Based Targets initiative on 2 June 2025. Scope 1 and Scope 2 targets are classified in conformance with the Science Based Targets initiative standards. A product carbon footprint per carat is also assessed by ERM under ISO 14067, cradle-to-gate.

Resources · Energy & Water

Resources

Energy and water are managed for efficiency and resilience across manufacturing sites, with renewable generation supporting the flagship facility.

Energy

2,678 m²

Rooftop solar array on the Sri Lanka flagship manufacture, in service since 2020.

2020

1.47M kWh

Solar energy generated at the Sri Lanka manufacture: 1,467,392 kWh in 2025, up from 797,065 kWh in 2024.

2025

24 %

Green electricity generated against total consumed, group level. Target 30% by 2025, 50% by 2030.

2024
Water

Since 2024

Rainwater harvesting implemented across the Sri Lanka and Thailand facilities.

2024

By 2026

Water recycling at NIRU Swiss, a voluntary system, moving to full implementation.

2026

Beyond energy and water

Cutting waste.
Mapping impact.

Two further commitments across the sites: reducing what we send to waste, and assessing our impact on the ecosystems around the operations.

NIRU colleagues at a recycling awareness session

Waste · Reduce, recover, revalue

Waste

Improving resource efficiency through reduction, recovery, and the gradual transition away from plastic packaging across Sri Lanka and Thailand operations.

28% Of waste recycled across Sri Lanka and Thailand. Target 50% by 2025, 70% by 2030. 2024
22% Reduction in paper consumption. 2024
100% Of organic waste revalued at the Sri Lanka entity. 2024
By 2026 Alternative to plastic packaging, first trials planned.
NIRU colleagues planting mangrove saplings on the shoreline

Biodiversity · The Nature Roadmap

Biodiversity

In 2024, the group initiated its Nature Roadmap, aligned with the Watch & Jewellery Initiative 2030 Nature Pillar and the ACT-D framework, to assess and manage its impacts and dependencies on natural ecosystems.

Since 2024 Regulatory mapping across Switzerland, Sri Lanka and Thailand, and the preparatory phase of the biodiversity materiality assessment using ENCORE and the SBTN Materiality Screening Tool.
By 2026 Complete a sector-level assessment to identify key environmental pressures, such as water use and water pollution, and define measurable actions to avoid, reduce and mitigate material impacts.

The roadmap · four stages

  1. 01

    Supply chain impacts and dependencies analysis.

  2. 02

    Local site biodiversity and water assessment.

  3. 03

    Nature risks and opportunities evaluation.

  4. 04

    Nature strategy and action plan development.

The plan · the nature path

Nature to 2030

The carbon and nature roadmap is measured from a 2021 baseline, with carbon targets validated by the Science Based Targets initiative and a clear pathway defined beyond today.

Achieved Target, planned

2021

Achieved

Measurement begins

The group's carbon footprint is measured for the first time across Scopes 1, 2, and 3, with independent assessment by Environmental Resources Management (ERM) under the GHG Protocol.

2023

Achieved · base year

The baseline established

2023 becomes the Science Based Targets initiative baseline year. Renewable electricity sourcing reaches 28% of annual electricity consumption.

28%Renewable electricity

2024

Achieved · ahead of schedule

Where we stand, and the Nature Roadmap opens

The group's carbon footprint measures 46,239 tCO₂e, with 92% of emissions originating from purchased goods and services. Absolute Scope 1 emissions are 54% below the baseline year. The same year marks the beginning of the group's Nature Roadmap.

54%Scope 1 below the base year
46,239Tonnes CO2e measured
92%From purchased goods and services

2025 2 June

Approved

Target confirmed

The Science Based Targets initiative validates the group's near-term targets under Criteria Version 5.2, establishing a clear and time-bound pathway for emissions reduction.

2026

Target, planned

Renewable energy and nature assessment

Renewable electricity sourcing reaches 80% of annual electricity consumption. The Nature Roadmap completes its sector-level assessment.

80%Renewable electricity

2029

Target, planned

Supply chain alignment

75% of suppliers by spend, covering purchased goods and services, are expected to have science-based targets in place.

75%Suppliers by spend

2030

Target, planned

The SBTi and WJI 2030 pathway

Absolute Scope 1 emissions are reduced by 42% from the 2023 baseline year, while renewable electricity sourcing reaches 100%. The Nature Roadmap aligns with the Watch & Jewellery Initiative 2030 Nature Pillar.

42%Scope 1 reduction
100%Renewable electricity

Continue exploring
responsibility.

People and product ethics. Each area carries its own record.

01 A NIRU wellbeing and meditation session with the community Elevating People Learning, wellbeing, empowerment, and community. 02 Polished pink, orange and yellow sapphires poured onto a pale working surface Ensuring Product Ethics Provenance, traceability, and collaboration.

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