Diamond Company
We engineered an end-to-end multi-platform ecosystem that digitized the entire diamond procurement lifecycle, featuring a high-performance inventory synchronization engine for real-time market accuracy.

Problem Statement
Overcoming the "Trust Gap" in a High-Value Legacy Market
Despite being a multi-billion dollar industry, the B2B diamond and jewelry trade remained tethered to antiquated, manual processes that couldn't keep pace with digital demand. Our client identified a massive market opportunity to centralize the trade, but faced four critical friction points that threatened the platform’s viability:
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The Transparency Deficit: Without a unified platform, retail buyers had no way to perform objective "apples-to-apples" comparisons. Pricing was opaque, and comparing stones across different manufacturers required hours of manual cross-referencing through fragmented catalogs and spreadsheets.
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Stagnant Transaction Velocity: The journey from sourcing to shipping was bogged down by "off-platform" friction. Relying on back-and-forth emails, manual invoicing, and unoptimized communication channels meant that procurement cycles took days—or even weeks—to finalize, leading to lost sales at the retail counter.
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The "Ghost Stock" Crisis (Data Integrity): The industry’s greatest technical hurdle was inventory synchronization. Without real-time API integration, vendors were often listing "ghost stock"—diamonds that had already been sold elsewhere. This lack of data integrity damaged buyer confidence and led to high cancellation rates.
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High-Stakes Security Risks: In a marketplace where a single shipment can value in the hundreds of thousands, standard e-commerce security was insufficient. The client lacked a standardized, secure workflow for vendor vetting (KYC), certificate authentication (GIA/IGI), and protected payment escrow to mitigate the risk of high-value fraud.
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The Bottom Line: Our team needed to build a platform that didn't just look like a luxury marketplace, but functioned with the precision of a financial exchange.
Solution
Building a "Precision-Grade" B2B Trading Engine
We engineered a custom, scalable marketplace architecture designed to transform the diamond procurement process from a manual chore into a seamless digital experience. We addressed the industry's core friction points through a four-pillar technical strategy:
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Standardized Data Visualization (Solving Transparency): We implemented a sophisticated comparative analytics engine that normalized data across hundreds of vendors. By creating a unified "Diamond Attributes" schema, we enabled retail buyers to perform side-by-side comparisons of cut, clarity, and light performance, bringing total transparency to the pricing model.
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Automated Transaction Workflows (Increasing Velocity): To accelerate the sales cycle, we built an integrated B2B Negotiation Suite. This allowed for real-time "Offer/Counter-Offer" functionality, automated pro-forma invoice generation, and instant courier integration. By moving the entire conversation on-platform, we reduced the average procurement cycle from 72 hours to under 60 minutes.
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Live API Synchronization (Ensuring Data Integrity): We eliminated "Ghost Stock" by developing a Real-Time Inventory Sync (RTIS) engine. Our team built custom API connectors to major vendor ERPs and industry databases (like GIA and IGI). This ensured that every stone listed was verified and available, with listings updating in milliseconds to reflect global sales.
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The "Vault-Grade" Security Framework (Securing High-Value Trade): To bridge the trust gap, we deployed an end-to-end Security & Compliance Layer. This included an automated KYC (Know Your Customer) onboarding flow for vendors, encrypted certificate verification, and a multi-stage Escrow payment gateway. This framework ensured that funds were only released once the physical stone was verified against its digital certificate.
Result By merging luxury aesthetics with financial-grade backend stability, we delivered a platform that empowers wholesalers to scale their reach and gives retailers the confidence to source high-value inventory with a single click.
500k+
Live-Synced SKUs
40%
Faster Procurement
100%
Verified Transactions
Zero
Ghost Stock
Tech Stack







Project Timeline
Architecture & Security Design
Phase 1Defined the multi-tenant architecture and implemented strict KYC validation protocols to ensure only verified buyers accessed the inventory.
Database & Worker Optimization
Phase 2Structured the PostgreSQL schema for high-read performance and configured BullMQ for reliable background job processing.
Cross-Platform Development
Phase 3Simultaneous build-out of the Flutter mobile and web app for on-the-go buying and the React web dashboard for heavy-duty inventory management.
Real-Time Features & Deployment
Phase 4Deployment of the Node.js socket layers for live chat and the automated "Offer" and "Wishlist" engines.
Created By


The platform developed by the team has completely revolutionized how we conduct our B2B trade. Previously, keeping our inventory updated across different channels was a manual nightmare. Now, with the automated 30-minute sync and the seamless 'Offer' system, our sales cycle has shortened significantly. Our clients love the ability to wishlist and chat live with us, and the administrative control we have over the entire ecosystem is unparalleled. It is the gold standard for jewelry tech.
Niray Varia
— Director, Diamond Company

High-Frequency Inventory Sync
Managing a global inventory of diamonds requires precision. We utilized BullMQ to orchestrate a recurring synchronization task every 30 minutes.
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The Workflow: The system fetches the latest stock from vendor feeds and the physical vault.
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The Advantage: By offloading this to a background worker, the user experience remains lightning-fast, preventing app "lag" even during peak data-ingestion periods.
Goals
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Zero-Error Inventory: Ensure that "available" stones are truly available through automated 30-minute syncs.
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Secure Digitization: Transition from manual phone/email orders to a secure, encrypted digital platform.
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Real-time Negotiation: Facilitate faster deal-closing through integrated live chat and offer-sending features.
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Centralized Control: Provide the Admin with a single "source of truth" to manage buyers, vendors, and stock.
Challenges & Conclusion
Challenges Overcome: The primary technical hurdle was balancing data freshness with system performance. Syncing a massive database of diamonds every 30 minutes can strain a PostgreSQL instance if not handled correctly. We solved this by implementing BullMQ, which allowed us to manage these intensive jobs asynchronously. This ensured that while the background sync was running, the Buyer's mobile app remained responsive and the Live Chat stayed lag-free.
Conclusion: By combining a modern Flutter/React frontend with a heavy-duty Node.js/BullMQ/PostgreSQL backend, we delivered a platform that is both beautiful for the buyer and a powerhouse for the administrator. The result is a digitally-native diamond marketplace that operates with the precision and speed required by today’s jewelry professionals.