Most B2B diamond platform builds we deliver fall between $25,000 and $180,000, depending on scope.
A focused WooCommerce or Shopify B2B platform with member approvals, tiered pricing, and five supplier
integration typically lands at $25K–$45K and goes live in 8–12 weeks. A Magento or custom-module build with
multi-supplier feeds, advanced memo workflow, and a retailer-facing API runs $50K–$85K over 14–20 weeks.
A full mini-RapNet your own aggregation platform pulling from RapNet, Nivoda, IDEX, and your own stock,
distributing via REST and GraphQL APIs to unlimited retailers starts at $95K and typically lands $120K–$180K.
Monthly hosting and support from $500. We quote a fixed scope after a 30-minute strategy call.
Who Builds a Private B2B Diamond Platform?
Over the last 18+ years we've built B2B trading platforms for three kinds of diamond businesses. If you fit one of these profiles, this page is for you.
- 1. Natural Diamond Wholesalers
You hold sightholder rough or polished inventory and want to sell directly to your network of vetted retailers without middlemen taking a cut. You need a closed, login-only website where only your approved buyers can see prices and place orders.
- 2. Lab-Grown Diamond Manufacturers
You produce CVD or HPHT diamonds and need to push fresh inventory to retailers daily. You want your own platform with live stock, certificate-linked listings, and the ability to control which retailer sees which price band.
- 3. Diamond Aggregators & Bourse Operators
You want to run a mini-RapNet aggregate inventory from 10, 50, or 500 suppliers and offer that combined feed to retailers under your own brand. You take a markup, not a stone-by-stone listing fee.
Why Build Your Own Instead of Listing on RapNet or Nivoda?
Public marketplaces work but they cost you in three ways most dealers underestimate.
- Margin compression. Every retailer on RapNet sees every supplier's price. The race-to-the-bottom on price-per-carat is brutal.
- No customer relationship. RapNet owns the buyer relationship. If they decide to change pricing, terms, or features tomorrow, you have no leverage.
- No data ownership. Search behavior, demand patterns, buyer preferences — that's all RapNet's data, not yours.
A private B2B platform flips that. You decide who sees what, at what price, on what credit terms. You own the buyer relationship and the data. And once it's built, there's no per-stone listing fee your monthly cost is just hosting.
Core Features of a B2B Diamond Trading Platform
Every platform we build includes these as standard. Think of this as the baseline your version can be customised on top of it.
Member Approval & Subscription Management
A real B2B platform is closed by design. Anyone can request access only your approved buyers actually trade.
- Self-service registration form that captures trade references, business licence, GST/VAT/EIN, years in business, and bank reference.
- Admin approval queue. You (or your sales head) review each application, ask for more info, approve, or reject.
- Approved members can immediately search, place memos, and transact within their tier limits.
- Suspended or expired members lose access in one click no risk of ex-customers seeing live pricing.
Admin Controls That Give You Real Power
This is where most off-the-shelf eCommerce platforms fall short for diamond trading. We build these controls in from day one.
Run Your Own RapNet Distribute Diamonds Through APIs
This is the feature that turns a B2B website into a true mini-marketplace.
We build RESTful and GraphQL APIs that let you push your live diamond feed straight into your retailers' websites. Your retailer adds their markup, displays the stones on their domain, and sells them to end consumers — without ever holding inventory.
In plain language: you become the supplier, your retailers become the storefronts, and you control the data feed, refresh frequency, image rights, and the markup ceiling. This is exactly the model RapNet, Nivoda, and IDEX use — except now it's yours.
Want to see exactly what this looks like in code?
Book a Technical Walkthrough
Free 30-min call. We'll screen-share a live B2B platform we've built and answer every API question you have.
Live B2B Diamond Platforms We've Built
Don't take our word for it. These are real B2B trading sites running on platforms we built and continue to maintain.
Which Platform Should You Build On?
We've built B2B diamond platforms on every major eCommerce stack. Here's how we typically advise dealers depending on budget and ambition.
On the strategy call we'll recommend the right one for your inventory size, buyer count, and 3-year roadmap not the one with the highest build fee.
Ready to Build Your Own?
The diamond dealers winning over the next decade won't be the ones paying the most listing fees. They'll be the ones who own their platform, their data, and their buyer relationships.
Book a free 30-minute strategy call. We'll listen to your situation, show you live B2B platforms we've built, give you a realistic timeline and cost band, and tell you honestly whether you should build now or wait.
Book Free Strategy Call
No obligation. No pressure. We only take on 2-3 new B2B builds per quarter let's see if we're the right fit.
