Lab Grown Diamond Suppliers for Retailers & Manufacturers

Lab Grown Diamond and Moissanite Suppliers for Retailers & Manufacturers

Trusted Loose Diamond Supplier for Retailers & Manufacturers - Ocean Star Diamond

Source wholesale lab grown diamonds and moissanite stones directly from a trusted B2B supplier. OCS Diamond provides IGI certified and non-certified loose diamonds for retailers, manufacturers, and bulk buyers with consistent grading, scalable supply, and global delivery.

OCS Diamond(Ocean Star Diamond) is a leading lab grown diamond supplier based in Surat, serving global diamond retailers and manufacturers.

Register for Wholesale Access

Wholesale Loose Diamonds & Moissanite for Retailers

Explore a complete range of wholesale loose lab grown diamonds and moissanite stones designed for high-volume sourcing. From calibrated melee to certified larger stones, our inventory supports consistent supply for global diamond retailers and manufacturers.

Lab Grown Diamond Suppliers for Loose Diamonds

As trusted lab grown diamond suppliers, we deliver loose diamonds with the ideal balance of brilliance, quality, and cost efficiency. Designed for the diamond trade, our stones support manufacturing, private labels, and retail programs.

Available as loose diamonds in DEF and GHI color grades, our inventory is curated by expert lab grown diamond suppliers to ensure consistency for engagement rings, earrings, and repeat production designs.

Source unique collections from lab grown diamond suppliers offering Blue, Pink, and Yellow fancy color diamonds. Multiple intensity options help retailers and manufacturers create standout designs.

Wholesale Moissanite Stones Supplier

As part of our supplier network, we provide loose moissanite stones precision-cut for brilliance, offering flexibility for retailers across multiple price segments.

High-quality white moissanite stones in FG and IJK grades, available in sizes up to 15 carats. Ideal for bold, high-impact designs that demand fire and clarity.

Our colored moissanite stones are available in vibrant shades including Blue, Green, Yellow, Champagne, Grey, and more. Perfect for custom diamond programs and unique design collections.

Loose Diamonds Ready for Wholesale Supply

All diamonds and stones are supplied loose, calibrated, and ready for manufacturing or resale, sourced from reliable lab grown diamond suppliers focused on long-term supply consistency.

Secure Wholesale Diamond Access for Verified Retailers

Lab Grown Diamond Supplier Platform (Live Inventory Access)

Our platform is purpose-built for the diamond trade, offering controlled access to live wholesale inventory while protecting pricing integrity and supplier relationships.

 

Inventory visibility and real-time pricing are reserved exclusively for approved retailers, manufacturers, and trade professionals.

Secure Live Tables

Real-time availability of GIA & IGI certified diamonds.

Pricing in INR

Transparent wholesale rates updated with daily market trends.

Custom Quotes

Bespoke sourcing for unique or high-carat requirements.

Trade Integrity

Professional-only portal ensuring market price protection.

Access Our Live Wholesale Loose Diamonds Inventory

Certified Stock for Retailers & Trade Buyers

Explore our up-to-date inventory of certified loose diamonds available for immediate B2B supply. All stones are graded by SGL, GIA or IGI and priced transparently for registered trade partners.

Search by shape, carat, and price for precise selection. Exclusive access is available for registered B2B buyers.

Lab Grown Diamond Suppliers in Surat : Direct Factory Supply

Harnessing the power of the world’s diamond capital to provide retailers and wholesalers with unmatched manufacturing precision.

Uncompromising Quality Control

Every batch of wholesale lab grown diamonds undergoes strict inspection to meet international grading standards.

Reliable Bulk & Repeat Supply

Factory-linked infrastructure ensures consistent availability for running designs and high-volume programs.

Agile Custom Manufacturing

Fast turnaround on make-to-order diamonds, custom proportions, and specification-based requirements.

Direct-to-Source Wholesale Pricing

By eliminating unnecessary intermediaries, we pass manufacturing cost advantages directly to our trade partners.

Direct Trade Communication

Transparent, professional communication with sourcing and production teams ensures accuracy at every stage.

B2B Trade Excellence: Ocean Star Diamonds is a dedicated trade partner. We do not operate as a retail storefront or a public marketplace, ensuring our loyalty remains with our professional retailer partners.

Certified Lab Grown Diamond Suppliers : IGI & Non-Certified

As trusted lab grown diamond suppliers, we provide loose diamonds and moissanite stones with full disclosure, ethical sourcing, and consistent grading standards to ensure long-term reliability for retailers and manufacturers.

IGI Certified Lab-Grown Diamonds and Moissanite

Our IGI certified lab grown diamonds and moissanite offer verified grading for clarity, color, and cut. As reliable lab grown diamond suppliers, we ensure every certified stone meets international standards required by professional buyers.

Cost-Efficient Non-Certified Options

For businesses seeking affordability without compromising on quality, we offer non-certified lab-grown diamonds and moissanite. Trust our transparent grading system for smart inventory decisions.

Accurate Diamond Grading & Full Disclosure

Every stone is graded with precision, including color, clarity, and cut details. As professional lab grown diamond suppliers, we maintain complete transparency to match your exact sourcing requirements.

In-House Quality Checks Before Dispatch

All loose diamonds and stones undergo final inspection before dispatch. Our internal quality control ensures consistent supply standards expected from trusted lab grown diamond suppliers.

Diamond Types - Bulk & Wholesale Inquiry

Built for diamond retailers & Manufacturers

As experienced lab grown diamond suppliers, we support retailers and manufacturers sourcing loose diamonds for bulk production, private labels, and scalable retail programs. Our supply model ensures consistency, flexibility, and long-term reliability.

Source calibrated loose diamonds in volume from trusted diamond suppliers, ideal for collections, product launches, and private label manufacturing.

Matched Diamonds for Jewelry Sets

Precision-matched loose diamonds supplied for rings, earrings, and coordinated sets, ensuring uniformity across every finished design.

Custom Diamond Sizes & Shapes

Diamonds supplied to exact specifications, including custom cuts, unique proportions, and brand-specific sizing requirements.

Make-to-Order Diamond Supply

Flexible make-to-order supply from lab grown diamond suppliers allows you to produce based on demand, reducing inventory risk and improving cash flow.

Consistent Supply for Running Designs

Reliable repeat sourcing ensures consistent quality, grading, and availability for high-performing designs and ongoing collections.

Outcome: Choosing reliable lab grown diamond suppliers ensures long-term consistency, better inventory planning, and scalable business growth.

Lab Grown Diamond Suppliers Guide : 4Cs & Certification

To build profitable inventory, understand every stone’s specifications. Our guides cover The 4Cs, GIA/IGI certification, moissanite vs lab-grown diamonds, and real-world evaluation techniques.

Cut

The most important C. We focus on Ideal and Excellent cuts to guarantee maximum brilliance, fire, and scintillation..

Color

Graded on the D-to-Z GIA scale. Select stones from the Colorless (D-F) and Near Colorless (G-J) ranges for premium collections.

Clarity

Assessing internal inclusions and external blemishes (graded FL to I3). We guide you through the ideal VS and VVS clarity grades for investment-grade pieces.

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Global Shipping & Supply Chain Excellence

Our logistics infrastructure is built for the precision and responsibility required in the diamond trade. From secure handling to international delivery coordination, we support partners with dependable, export-ready supply solutions across domestic and global markets.

Secure Packaging for High-Value Stones

Diamonds are packed using tamper-resistant, impact-protected methods designed for safety, discretion, and traceability throughout transit.

Export-Ready & Compliance-Focused Processes

Our shipping workflows align with international export standards, ensuring documentation readiness and smooth cross-border movement.

Reliable Dispatch & Delivery Coordination

Structured dispatch timelines, shipment coordination, and tracking support help partners plan inventory with confidence.

Bulk & Consignment Shipment Support

For high-volume orders, we assist with consolidated packing, scheduled movements, and logistics planning tailored to scale.

Trusted by Diamond Retailers & B2B Buyers Worldwide

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5+ years of experience delivering certified Wholesale Loose Diamonds to retailers, manufacturers, and global B2B diamond buyers.

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Over 1,000+ carats of certified Loose Diamonds available for immediate supply to global jewelers and manufacturers.

Trusted by diamond retailers businesses across India.

Diamond Retailer - Surat
Diamond Retailer - Surat
Consistent quality and accurate grading make them one of the most reliable lab grown diamond suppliers we’ve worked with. Perfect for our repeat inventory needs.
Jewelry Manufacturer - Mumbai
Jewelry Manufacturer - Mumbai
We depend on their loose diamonds for bulk production. Supply is stable, and communication is always clear and professional.
International B2B Buyer
International B2B Buyer
Strong supplier network with dependable delivery timelines. Their IGI-certified stones match specifications exactly, which is critical for our business.

Contact & Location

Visit our office by appointment. We ship globally with export support.

Office

Plot-3, Savani Industrial soc. Mini Bazaar, Surat-395008

Business Hours

Monday – Friday : 9am – 7pm
Saturday : 9am – 2pm
Sunday : Closed

Book a Consultation

Schedule a video inspection or office visit.