Our Services
Koin International is a full service international tender house with a comprehensive range of services available to buyers and suppliers. In a dynamic industry, we remain ahead by listening, adapting quickly, and delivering transparent, secure, and high-performing tender experiences.
We don’t just run tenders — we set the benchmark.
Diamond Tenders & Auctions
Koin International FZCO is a leading full-service diamond tender house and a top-tier member of the Dubai Diamond Exchange (DDE). We specialise in designing agile, data-driven sales strategies that maximise value for both suppliers and buyers in an increasingly competitive global market.
What sets Koin apart is our unwavering focus on innovation, strategic partnerships, and relationship-driven service. We don’t just manage tenders — we engineer smart, streamlined sales processes supported by proprietary analytical tools and insights that ensure every parcel reaches the right buyers.
With a global network of over 2,000 pre-qualified clients, we connect sellers to a broad and diverse buyer base, delivering unmatched market reach and optimal outcomes.
Our core expertise lies in rough natural diamonds, where we work across all production types and volumes — from run-of-mine parcels and melee, to large single stones, fancy colour, and exceptional diamonds. We represent a broad spectrum of suppliers, from large-scale mining operations to artisanal producers across Africa and beyond.
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Rough natural diamonds: Our primary focus — all qualities, sizes, and assortments, including ROM, smalls, large stones, fancy colour and rare, high-value goods
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Polished diamonds: Select tenders conducted as part of integrated sales strategies when appropriate
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Lab-grown rough diamonds: A developing capability, available on request and in response to market demand
Koin conducts multiple tenders each month, providing our clients with consistent buyer engagement, real-time market insights, and a strong platform for performance analysis and revenue growth.
Member of the Dubai Diamond exchange since 2015.
Initiator and founder member of the DDE Tender Best Practice Forum, a world-first initiative established to advance industry best practice for rough and polished diamond tenders, through the establishment of a Code of Conduct. Buyers and sellers can be assured of Koin’s ongoing commitment to enhancing industry standards and practices.
Member of iTraceiT, a highly secure traceability solution that combines AI and blockchain to track diamonds and other products at all stages in the product supply chain.
Appointments & Viewings
All viewings take place in state of the art fully-equipped facilities in Dubai, and other locations as required. Locations are secured with cameras, overnight safe and courier services, and insurance. Viewers are drawn from a client base of over 2,000 global buyers, allowing us to match exactly the right goods to the right buyers.
- Pre-approved buyers ensure full KP, KYC and AML compliance
- The high volume of appointment requests is managed by our sophisticated profile and vetting process for each sale, ensuring that the right buyers are prioritised for the production/s on sale
- Parcels are live-tracked and managed by our proprietary RFID lot tracking application, ensuring a smooth and efficient viewing process for buyers, enhanced security, and providing detailed reporting and statistics of both buyer and lot performance
Bidding
Bidding takes place over our custom-developed Bidding Platform.
- The Koin.bid proprietary bidding platform has been custom engineered to ensure a seamless, secure and user-friendly experience for high-value bidding transactions. Leveraging robust, secure servers and end-to-end encryption, we’ve fortified the bidding system against potential data breaches, unauthorised access, and collusion. This ensures absolute confidence in the safety and integrity of the bidding process.
- At bid close full results and a suite of reports is instantly available, incorporating bidding patterns and various other metrics.
- Customisable reports according to supplier requests are also possible.
- We offer sealed bid tender capabilities, with auction services coming soon.
Services
We are a full service international tender house with a comprehensive suite of services available to buyers and suppliers.
- Coordination of all shipments, whether import or export, in line with KP and customs processes
- Deep boiling
- Lot preparation including labelling, QR codes and RFID tagging, as well as further risk management, security and viewing procedures
- Assortments and evaluation:
- Preparing of mining productions into assortments as per mine production and buyer/manufacturer demand, to ensure maximum price gains
- Valuation services based on historical data, latest industry movements, and current market behaviours
- Galaxy scanning
- Marketing and branding of productions
- Profiling and pre-vetting of buyers
- Appointment management
- Hosting and managing tender events (single or multiple locations)
- Provision of analysis and reports
- Invoicing
- Collecting and disbursement of monies
- Various supply options available, including pre-finance, purchase, partnerships (exceptional stones) and/or direct supply to tender
- Rough, polished, and lab-grown tender/auction sales
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Contact
Phone
+ (971) 58 561 0203
Address
43A Almas Tower
JLT, Dubai, UAE
