✨ Unlocking Earth's Treasures Since 2010

Sierra Gold & Diamonds Mining Limited

Discover premium gold and diamonds from Sierra Leone's richest geological formations. We combine cutting-edge exploration technology with sustainable mining practices to unlock the Earth's most valuable resources.

Premium Gold

Finest Diamonds

100% Sustainable

317.5 km²

Mining Concession Area

ISO Certified

14001 & 45001 Standards

50+ Experts

Specialized Team Members

15+ Years

Industry Experience

Premium Gold Mining Operations

Extracting the finest gold from Sierra Leone's most promising deposits

Why Our Gold Stands Out

  • High-purity ore deposits (98.5%+ gold content)
  • Advanced geophysical mapping and drilling
  • Sustainable extraction minimizing environmental impact
  • ISO 14001 certified operations
  • Real-time quality assurance
  • Global market standards compliance
Production Capacity

Current Output: 500+ oz annually

Target Capacity: 2,000+ oz annually by 2026

Gold Grade: 1.5-3.5 g/t average

500+ oz

Annual Production

98.5%

Gold Purity

1.5-3.5

g/t Gold Grade

100%

Eco-Compliant

Exceptional Diamond Operations

Extracting conflict-free, premium quality diamonds with ethical practices

Our Diamond Expertise

  • Kimberley Process certified diamonds
  • Advanced sorting and grading technology
  • Ethical sourcing and conflict-free guarantee
  • Premium clarity and cut standards
  • Transparent chain of custody
  • International market certification
Diamond Specifications

Quality Range: VVS1 to VS2 clarity

Carat Size: 0.5 to 5+ carats

Certification: GIA, IGI certified

1000+

Carats Annually

100%

Conflict-Free

VVS-VS

Clarity Grade

GIA

Certified

From Exploration to Extraction

A comprehensive, sustainable approach to mineral extraction

01
Exploration & Survey

Advanced geological surveys using satellite imagery, geophysical mapping, and core sampling to identify mineral-rich deposits.

02
Analysis & Planning

Comprehensive assay analysis, 3D modeling, and feasibility studies to determine optimal extraction methods.

03
Extraction & Mining

State-of-the-art mining operations with focus on safety, efficiency, and minimal environmental disruption.

04
Processing & Restoration

Advanced mineral processing, quality control, and comprehensive land restoration and rehabilitation programs.

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Years of Excellence

0

km² Concession Area

0

Expert Team Members

0

% Certified Compliant

Cutting-Edge Mining Technology

Leveraging advanced technology for precision and sustainability

Remote Sensing & GIS Mapping

Satellite imagery analysis and geographic information systems for precision mapping, deposit identification, and environmental monitoring across our entire concession area.

LiDAR GPS GIS
3D Geological Modeling

Advanced volumetric modeling with intensity rating heatmaps and deposit anomaly visualization for strategic planning and resource estimation.

3D CAD Heatmaps Layers
Core Logging & Assay Analysis

Comprehensive drill core analysis, geochemical profiling, and multi-element assaying for accurate resource quantification and grade determination.

XRF Lab Tests Logging
AI-Powered Analytics

Machine learning algorithms for predictive modeling, automated mineral identification, and optimization of extraction processes for maximum efficiency.

AI/ML Analytics Automation

Industry-Leading Standards

Committed to excellence through rigorous certification and compliance

ISO 14001:2015

Environmental Management System

ISO 45001:2018

Occupational Health & Safety

Kimberley Process

Conflict-Free Diamond Certification

EITI Compliant

Extractive Industries Transparency Initiative

News & Announcements

Stay informed about our latest developments and achievements

15 Nov 2025
Expansion
New Exploration Zone Acquired

Successfully secured additional 50 km² exploration rights in the highly prospective Eastern District.

Read More
08 Nov 2025
Achievement
Record Gold Production Quarter

Achieved highest quarterly gold output with 150 oz, exceeding targets by 25%.

Read More
01 Nov 2025
Technology
AI-Powered Analytics Launch

Implemented cutting-edge machine learning systems for enhanced mineral identification and processing.

Read More

Ready to Partner with Industry Leaders?

Discover how we can unlock the potential of your mineral resources with world-class gold and diamond mining expertise