Rapnet Diamond Supplier — Find Uniglo Diamonds on Rapnet

Rapnet is an online trading platform for diamonds, gemstones, and jewelry. It was launched in 1996 and is operated by the Rapaport Group — making it one of the oldest and most established diamond trading networks in the world.

With over $9.4 billion in daily listings, Rapnet is the world's largest and most trusted online trading network, connecting qualified buyers and sellers across 100+ countries. Established by the Rapaport Group over 40 years ago, Rapnet is the world's largest and most trusted marketplace for diamonds, gemstones, and jewelry — with more members and more listings than any other network.

Unlike newer diamond platforms, Rapnet carries the full institutional weight of the Rapaport Group — the organisation that publishes the Rapaport Price List, the global benchmark pricing reference for diamonds used by every professional in the diamond trade. Rapnet is the only platform with the Rapaport Price List and best discounted asking prices included — ensuring smarter business decisions for every member.

How Does Rapnet Work — Step by Step

Step 1 — Apply for membership. All new members must submit an application and pass the vetting process. Applicants need to provide a business licence or certificate of incorporation proving they are in the diamond, gem or jewelry trade, government-issued photo ID, and documents proving trade reputation and industry affiliation. Rapnet's rigorous vetting process means every supplier and buyer on the platform is a verified trade professional — a meaningful quality assurance signal for buyers sourcing significant value orders.

Step 2 — Choose your membership plan. Rapnet offers multiple plans — a buyer plan for sourcing diamonds, gems and jewelry; a buyer-seller plan for buyers who sell occasionally with up to 50 listings; and a professional seller plan for listing inventory at scale with up to $7 million total value at once. Each plan includes access to the Rapaport Price List and Rapnet's full inventory search functionality.

Step 3 — Search the inventory. Instantly search and compare over 1.6 million diamonds, gemstones, and jewelry items using advanced filters to find exactly what you need. Filters include shape, carat weight, colour grade, clarity grade, certification type, supplier location, price range, and Rapaport discount percentage — giving trade buyers precise control over their sourcing criteria.

Step 4 — Negotiate and trade directly. Rapnet allows members to negotiate and trade directly with diamond suppliers, with no commission or transaction fees. Members can post Buy Requests and sellers who have that diamond will contact them — or negotiate directly with other members with no commissions or listing and transaction fees.

Step 5 — Access pricing tools. The Rapaport Price List is a benchmark pricing guide widely used in the diamond industry to establish diamond prices. Published weekly at midnight on Thursday EST, it provides a standardised reference for diamond traders, jewelers, and wholesalers to determine the market value of diamonds. The Rapnet Price List is an online, real-time pricing guide used within the diamond trading community — it provides market-driven, up-to-the-minute pricing for diamonds based on real transaction data on Rapnet, reflecting more dynamic, actual trading conditions.

Key Features of the Rapnet Platform for Jewelers and Trade Buyers

Rapnet benefits jewelers as well as dealers — providing solutions for jewelers to increase their sales and buy at competitive prices. Rapnet is independent and not controlled by any of the large suppliers or diamond bourses.

Key features include complete trading flexibility with searches, listings, and trade activity automatically synced across devices; instant alerts for new messages, offers, and listing updates; and accurate, real-time pricing with the Rapaport Price List and Diamond Price Calculator.

Rapnet's Instant Inventory allows members to showcase hundreds of thousands of diamonds and jewelry directly on their website without the cost of owning them — compatible with all major e-commerce platforms including Wix, Shopify, Magento, GoDaddy and WooCommerce.

Rapnet offers an API service that is a game-changer for jewelry retailers — enabling easy integration of Rapnet's extensive diamond data into online stores, allowing customers to browse and purchase loose diamonds directly through the retailer's website with up-to-date inventory always current.

What Is the Rapaport Price List and Why Does It Matter for Sourcing?

The RAPI is the global standard diamond price index, based on real-time prices on Rapnet, the world's largest diamond trading marketplace. It provides access to advanced diamond pricing lists and tools for better business decisions.

The Rapaport Price List is published weekly and provides a standardised reference for diamond traders, jewelers, and wholesalers to determine the market value of diamonds. The Rapnet Price List reflects more dynamic, actual trading conditions — making it a useful tool for buyers and sellers to gauge realistic diamond prices during negotiations, allowing for more precise pricing based on diamond characteristics like carat, colour, clarity, and cut.

For jewelers sourcing through Rapnet, understanding your supplier's pricing relative to the Rapaport Price List — expressed as a percentage discount or premium — is the most reliable way to evaluate whether the pricing offered is competitive for any given specification. Uniglo Diamonds lists on Rapnet at competitive, transparent pricing relative to the Rapaport benchmark — allowing buyers to immediately assess the value of our certified inventory against the global market standard.

How Many Diamonds Are Available on Rapnet?

Rapnet provides access to $9.4 billion in daily listings — instantly searchable across over 1.6 million diamonds, gemstones, and jewelry items. In 2025 Rapnet added a service for trading coloured gemstones in collaboration with the American Gem Trade Association (AGTA) — expanding the platform beyond diamonds into a comprehensive B2B marketplace for the entire jewelry trade. Uniglo Diamonds contributes certified Antwerp-manufactured natural and lab grown diamond inventory to this supply — representing the European manufacturer segment within Rapnet's global supplier network.

Uniglo Diamonds is verified and listed on Rapnet as a certified natural and lab grown diamond supplier. We are based at Hoveniersstraat 30 in Antwerp's diamond district and have been operating from this address for over 30 years — making us one of the longest-established Antwerp-based suppliers accessible through the Rapnet platform.

How to Find Uniglo Diamonds on the Rapnet Platform

Finding Uniglo Diamonds within Rapnet is straightforward for existing platform members.

• Search by supplier name. Log in to your Rapnet account and use the member directory search to find Uniglo Diamonds. Our verified supplier account and current certified diamond inventory are accessible within the platform directly.
• Search by Antwerp origin. Use Rapnet's advanced search filters to filter inventory by supplier location — selecting Antwerp or Belgium as the origin — to identify Uniglo Diamonds listings within the broader platform inventory. Combined with your preferred certification filter (IGI, GIA, or HRD), this narrows the search to our specific certified stock efficiently.
• Use the Buy Request feature. Post a Buy Request and sellers who have that diamond will contact you. For specific shapes, grades, or carat weights you are seeking, posting a Buy Request that includes Antwerp or Uniglo Diamonds as preferred source criteria will connect you directly with our team for that specification.
• Contact Uniglo directly to establish a preferred supplier relationship. Rapnet allows trade buyers to build preferred supplier relationships within the platform. Contact our Antwerp team at suraj@uniglodiamonds.com or +32 03 500 91 07 to discuss establishing a preferred supply arrangement both through Rapnet and as a direct wholesale account.

What Makes Uniglo One of Rapnet's Strongest Certified Diamond Suppliers

Trade with confidence and security knowing that the people you deal with in the Rapnet community are trade verified by Rapaport. Within that verified community, Uniglo Diamonds stands apart from most other Rapnet suppliers for specific, demonstrable reasons.

• Direct Antwerp manufacturer — not a reseller. Most suppliers on Rapnet are resellers, distributors, or trading companies purchasing from manufacturers and listing on the platform for a margin. Uniglo Diamonds manufactures in our own Antwerp facility — giving Rapnet buyers who source from us direct manufacturer pricing with no intermediary markup. For a platform where pricing is assessed relative to the Rapaport benchmark, sourcing from a direct manufacturer consistently delivers better value per carat than sourcing from reseller suppliers listing equivalent certified goods.
• Tri-certification: GIA, IGI, and HRD. We list stones on Rapnet certified by all three globally recognised grading authorities. Rapnet's vetting process ensures only trade-verified professionals list on the platform — and our tri-certification capability gives Rapnet buyers the flexibility to specify their preferred certification standard for any order.
• 30+ years of Antwerp diamond manufacturing heritage. Our manufacturing and quality assessment capabilities were developed over three decades in Antwerp's natural diamond trade. Every diamond we list on Rapnet reflects those standards — applied consistently to both natural and lab grown inventory.
• Both natural and lab grown certified supply. Uniglo Diamonds lists both certified natural diamonds and certified lab grown diamonds on Rapnet — making us one of the few Antwerp-based platform suppliers who can serve Rapnet buyers across both product categories from a single, direct manufacturer relationship.

Why Sourcing From an Antwerp Manufacturer on Rapnet Matters

Rapnet's platform gives trade buyers access to verified suppliers from across the global diamond trade — India, Israel, USA, Belgium, and beyond. Within that global network, the location and manufacturing credentials of individual suppliers matter for quality, accountability, and supply chain transparency.

Antwerp processes approximately 84% of the world's rough diamonds. The city's cutting and polishing standards, its HRD grading infrastructure, and its five centuries of diamond manufacturing expertise make Antwerp-sourced certified diamonds the most accountable and quality-assured supply available anywhere on the Rapnet platform. An Antwerp manufacturer listed on Rapnet is not simply another verified member — it is a supplier backed by the world's most rigorous diamond trade institutional framework.

Natural Diamonds Available Through Uniglo on Rapnet

Uniglo Diamonds lists certified natural diamonds on Rapnet across all major shapes — round brilliant, oval, cushion, pear, princess, emerald, asscher, marquise, radiant, and heart. Our natural diamond inventory on Rapnet covers the full commercial carat range from 0.30 carat through to premium large stones, across the full colour and clarity spectrum from D Flawless investment-grade specifications through to commercial-grade SI goods for mainstream jewelry retail applications.

Every natural diamond listed by Uniglo Diamonds on Rapnet carries a current grading report from GIA, IGI, or HRD — independently verifiable on the respective laboratory website using the certificate report number. Our natural diamond supply reflects the full heritage of Uniglo's 30+ year Antwerp manufacturing operation — cutting and polishing standards applied in Antwerp's diamond district, graded by internationally recognised institutions.

Lab Grown Diamonds Available Through Uniglo on Rapnet

Uniglo Diamonds lists certified lab grown diamonds on Rapnet across all major shapes and across the full commercial carat range — from 0.30 carat melee through to 5+ carat premium solitaires. Colour grades span D through J for colorless and near-colorless applications. Clarity grades span IF through SI. Both CVD and HPHT manufacturing methods are available with method explicitly identified on every certificate and listing.

For Rapnet buyers who are expanding their lab grown diamond sourcing — or who are evaluating which Rapnet supplier to prioritise for certified lab grown inventory — Uniglo Diamonds offers the combination of direct Antwerp manufacturer pricing, tri-certification capability, and 30+ year industry heritage that distinguishes us from most lab grown suppliers listed on the platform.

Certifications Available on Uniglo's Rapnet Listings

Every diamond Uniglo Diamonds lists on Rapnet carries a current grading report from GIA, IGI, or HRD. Certificate numbers are listed within our Rapnet inventory entries and are independently verifiable on the respective laboratory websites before any purchase is confirmed. Laser inscriptions — the grading report number inscribed on the diamond's girdle, visible under 10x magnification — are confirmed on every stone, providing physical verification that each stone matches its certificate.

For the European and global trade market served by Rapnet, GIA certification carries the highest global prestige and is particularly valued for premium natural diamond transactions. IGI certification is the most widely used standard for lab grown diamonds globally and is well-recognised across all major Rapnet buyer markets. HRD certification carries particular authority in the Belgian and European professional trade — and as an Antwerp-based manufacturer, Uniglo Diamonds has a direct relationship with HRD that adds an additional layer of institutional credibility for European Rapnet buyers.

Pricing on Rapnet — How Uniglo's Inventory Is Priced

The Rapnet Price List provides market-driven, up-to-the-minute pricing for diamonds based on real transaction data on Rapnet, reflecting actual trading conditions. Uniglo Diamonds lists certified diamonds on Rapnet at transparent, competitive pricing relative to the Rapaport Price List benchmark — giving buyers the pricing reference clarity needed to assess our inventory efficiently against the global market standard.

Rapnet allows members to negotiate and trade directly with no commission or transaction fees. This means the price you see for Uniglo Diamonds inventory on Rapnet reflects our direct manufacturer wholesale pricing — without platform commission layers on top of the listed price. For Rapnet buyers evaluating Rapaport discount percentages across comparable certified inventory, Uniglo's manufacturer-level pricing consistently positions our listings at competitive discount levels relative to the Rapaport benchmark.

What Is the Rapaport Price List and How Is It Used?

The Rapaport Price List is a benchmark pricing guide widely used in the diamond industry to establish diamond prices, published weekly at midnight on Thursday EST. It provides a standardised reference for diamond traders, jewelers, and wholesalers to determine the market value of diamonds.

In practice, diamond prices on Rapnet are expressed as a percentage discount or premium to the Rapaport Price List — for example, a diamond listed at "Rapaport minus 40%" means the asking price is 40% below the relevant Rapaport Price List entry for that specification. Understanding Rapaport discounts allows Rapnet buyers to compare pricing across different suppliers for identical specifications — the most efficient way to evaluate whether a specific listing is competitively priced against the global market.

What Is the Rapnet Price List vs the Rapaport Price List?

The Rapaport Price List is a weekly benchmark updated by the Rapaport Group. The Rapnet Price List is an online, real-time pricing guide accessible exclusively to Rapnet members — providing market-driven, up-to-the-minute pricing based on real transaction data on Rapnet. Unlike the Rapaport Price List, the Rapnet Price List reflects more dynamic, actual trading conditions — making it a useful tool for buyers and sellers to gauge realistic diamond prices during negotiations.

For jewelers sourcing through Rapnet, the Rapnet Price List is the more operationally useful pricing tool — it reflects what diamonds are actually trading at in real time on the platform, rather than the weekly benchmark that may lag actual market movements. Using both tools together gives the most complete picture of current market pricing for any diamond specification.

Does Rapnet Charge Commission or Transaction Fees?

Rapnet allows members to negotiate and trade directly with diamond suppliers with no commission or transaction fees. The platform operates on a membership subscription model — buyers and sellers pay a membership fee for access, but individual transactions carry no platform commission. This is a significant practical advantage over some competing platforms where per-transaction fees erode the margin advantage of wholesale pricing. For high-volume Rapnet buyers, the absence of transaction fees means the full pricing advantage of sourcing from a direct manufacturer like Uniglo Diamonds flows directly to your bottom line.

Rapnet Financing — What Options Are Available?

Rapnet offers immediate and flexible financing — financing from partners at Del Gatto lets buyers use their inventory as collateral to get capital when buying Rapnet diamonds. This financing option is available directly within the Rapnet platform and is particularly valuable for jewelry businesses managing the balance between inventory investment and working capital.

For buyers who want financing arrangements directly with Uniglo Diamonds — outside the Rapnet platform — we offer our own flexible wholesale financing for qualified accounts. Contact our Antwerp team to discuss direct financing terms for large volume or custom orders placed outside the platform.

Step 1 — Apply for and Receive Rapnet Membership

New applicants can apply online or contact Rapnet directly. Applicants need to provide a business licence with full contact details, business references, government-issued documentation showing current legal registration, and sufficient proof that the business is operating in the diamond or jewelry trade and is in good standing. Rapnet's vetting process typically takes a few business days for established trade professionals with proper documentation.

Step 2 — Find Uniglo Diamonds on the Rapnet Platform

Once your Rapnet membership is active, search for Uniglo Diamonds in the member directory or filter the inventory search by Antwerp or Belgium origin with IGI, GIA, or HRD certification selected. Our current certified inventory of natural and lab grown diamonds is listed within the platform under the Uniglo Diamonds supplier account. For specific sourcing requirements — matched parcels, custom specifications, or large volume orders — contact our Antwerp team directly before placing the Rapnet order.

Step 3 — Trade Directly With No Commission Fees

Negotiate and trade directly with no commissions or listing and transaction fees. Place your order through Rapnet's trading infrastructure or use the platform's messaging system to communicate directly with our Antwerp team about specific requirements before confirming any purchase. For custom or large volume orders, direct communication with Uniglo Diamonds outside the platform is available alongside your Rapnet account.

Step 4 — Receive Certified Diamonds With Full Documentation

Every order placed through Rapnet from Uniglo Diamonds arrives with a current grading report from GIA, IGI, or HRD — the certificate number verifiable independently on the respective laboratory website. Every stone has a confirmed laser inscription on the girdle matching the certificate number. Full supply chain documentation confirming natural or lab grown origin is included with every shipment.

When to Source Through the Rapnet Platform

• Sourcing through Rapnet works best when you want the platform's established trade infrastructure — including access to the Rapaport Price List benchmark, no commission or transaction fees, and the security of trading within a Rapaport-verified buyer and seller community.
• When you want to use Rapnet's Buy Request feature to source specific stones across multiple suppliers simultaneously.
• When you are pricing diamonds relative to the Rapaport benchmark and want the full context of the global market pricing environment.
• And when the credibility of trading within the world's most established and longest-running diamond marketplace is important to your business.

When to Order Directly From Uniglo Diamonds in Antwerp

• Ordering directly from Uniglo Diamonds is the stronger option when you need matched parcels for manufacturing applications — precise grade consistency across a full set of stones for tennis bracelets, eternity rings, or pavé settings.
• When you are placing large volume orders where direct manufacturer pricing offers a further advantage over platform-mediated pricing.
• When you have custom cutting or specification requirements that require direct manufacturing communication.
• When you want to visit our Antwerp showroom and inspect certified stones in person.
• And when you want a direct supply relationship with full manufacturer accountability that does not depend on any third-party platform.

How to Use Both Rapnet and Direct Ordering Together

The most commercially effective approach for many trade buyers is using both channels in parallel — sourcing standard certified inventory through Rapnet for platform pricing transparency and trade infrastructure, while maintaining a direct account with Uniglo Diamonds for custom orders, matched parcels, volume purchasing, and showroom visits. Our Antwerp team actively supports buyers using this dual-channel approach and can advise on which route best serves each specific order requirement.

Direct Manufacturer — Not a Reseller or Broker

Uniglo Diamonds manufactures certified natural and lab grown diamonds in our own Antwerp facility. We do not purchase from third-party manufacturers and relist on Rapnet for a margin. Every stone Uniglo lists on Rapnet is priced at direct manufacturer level — the lowest price tier in the supply chain — with full manufacturing accountability from the company that actually produced it.

30+ Years of Antwerp Diamond Manufacturing Heritage

Uniglo Diamonds has operated from Hoveniersstraat 30 in Antwerp's diamond district for over three decades — a verifiable, 30-year business history at the centre of the world's most established diamond manufacturing infrastructure. Within that independent platform, Uniglo Diamonds represents one of the longest-established Antwerp manufacturer accounts — bringing a depth of industry standing and quality heritage that newer platform entrants cannot match.

Tri-Certification — GIA, IGI and HRD on Every Stone

Uniglo Diamonds lists certified diamonds on Rapnet from all three globally recognised grading authorities — GIA, IGI, and HRD. For Rapnet buyers who sell into multiple markets with different certification preferences, our tri-certification capability means a single Antwerp manufacturer account covers all their certification requirements across both natural and lab grown inventory categories.

Full Natural and Lab Grown Inventory on One Platform

Uniglo Diamonds is one of the very few Antwerp-based Rapnet suppliers who list both certified natural diamonds and certified lab grown diamonds in volume. For trade buyers building mixed inventory — carrying both natural and lab grown certified stock — a single Antwerp manufacturer relationship on Rapnet that covers both product categories simplifies sourcing, reduces supplier management overhead, and ensures consistent quality standards across the full diamond inventory.

Custom Orders and Matched Parcels Beyond the Platform

For jewelry manufacturers producing multi-stone pieces, Uniglo Diamonds provides matched parcel capability beyond what standard Rapnet platform ordering accommodates. Direct contact with our Antwerp team allows us to prepare precision-matched parcels — consistent colour, clarity, and cut grades across the full set — and confirm availability before the order is formally processed through the platform. This manufacturing-level service is one of the most commercially valuable capabilities Uniglo offers to Rapnet-connected trade buyers.

Whether you are an existing Rapnet member looking to identify the strongest certified diamond supplier on the platform, or a trade buyer evaluating Rapnet and wanting to understand which Antwerp manufacturers are listed — Uniglo Diamonds is ready to support your sourcing requirements through the platform and through a direct wholesale relationship.

Search for Uniglo Diamonds on Rapnet today — or contact our Antwerp team directly to discuss your requirements, arrange a showroom visit, or establish a direct supply account alongside your Rapnet membership.

Contact Uniglo Diamonds:

📍 Hoveniersstraat 30, Suite 662/Bus 250, 2018 Antwerp, Belgium

📧 suraj@uniglodiamonds.com

📞 +32 03 500 91 07

Browse our certified natural and lab grown diamond inventory at uniglodiamonds.com/inventory.

All trade and sourcing inquiries receive a personal response within one business day.