Diamonds born
in Sierra Leone
Responsibly mined, expertly traded, and delivered directly from source to market.
About us
At Green Gold Blue Harvest, we are dedicated to responsibly sourcing exceptional natural diamonds from the mineral-rich lands of Sierra Leone and connecting them directly to buyers around the world.
Our business spans the full diamond journey—from ethical mining and rough diamond procurement to international trading and premium retail sales. By working closely with local communities, miners, and trusted partners, we ensure that every stone we offer is sourced with integrity, transparency, and respect.
We believe each diamond tells a story: born deep within the earth over billions of years, carefully recovered from one of Africa’s most renowned diamond regions, and transformed into a timeless symbol of beauty, rarity, and enduring value.
Whether supplying investors, jewelers, or private collectors, our mission is simple: to bring the finest natural diamonds from Sierra Leone directly to the global marketplace.
Impact
Measuring Success Through Our Achievements
10acres
Prospecting & Recovery Areas
Small-scale diamond-bearing land parcels under active review, cleaning, and recovery work.
2021
Field Operations Began
Local recovery work has been underway since 2021, with samples collected from active alluvial ground.
4 Sites
Local Recovery Zones
Multiple small land parcels being worked with basic machinery, site crews, and local partners.
1,800+ Carats
Rough Stones Recovered
Mixed-size rough diamond parcels recovered through washing, sorting, and basic field processing.
Our Mining Site
Our mining activities are focused in the diamond-rich regions of Sierra Leone, where early field work has produced encouraging results and confirmed the strong potential of our operating areas.
Using a combination of local expertise, strategic partnerships, and practical equipment, we are steadily expanding our recovery capacity. Our growth plans include acquiring additional washing, sorting, and earthmoving machinery to increase efficiency and support larger-scale production.
As operations develop, we intend to secure additional prospective land throughout the region, strengthening our resource base and creating a scalable platform for long-term growth.
Retail Diamond Trade
In addition to our own mining activities, we work closely with trusted miners and diamond producers across Sierra Leone to source high-quality rough diamonds for export and international sale.
Our local network enables us to identify exceptional stones at competitive prices, giving buyers direct access to premium natural diamonds from one of the world’s most renowned diamond-producing regions.
Whether sourcing individual investment-grade stones or larger parcels, we provide a reliable pathway to authentic rough diamonds selected for quality, value, and provenance.
Founder/Managing director
Cyrus Lusanie Esq.
Cyrus Lusanie is a lawyer, economist, and business leader with extensive experience in mining operations, legal affairs, and government relations in Sierra Leone. As Co-Founder and Head of Operations, he oversees licensing, regulatory compliance, and field activities, helping guide the company’s strategic growth and operational execution.
Co-founder/Global business liaison
Foday Mansaray
Foday Mansaray is an entrepreneur and finance professional with experience spanning accounting, investment, and business development across Sierra Leone and Australia. As Co-Founder and Head of Investment, he leads the company’s financial strategy and investor relations, with a focus on transforming Sierra Leone’s natural resources into sustainable long-term value.
Co-founder/Stakeholder Relations
Mary M.K. Mansaray
Mary Kabba brings more than two decades of leadership in social work, community development, and humanitarian services in both Sierra Leone and Australia. Holding a Master of Humanitarian and Development Studies, she contributes deep local knowledge, stakeholder engagement expertise, and a strong commitment to responsible, community-focused development.