Premium White HPHT Lab Grown Diamonds: Factory-Direct from Surat
Surat's Premier B2B HPHT Lab Grown Diamond Manufacturer
Ocean Star Diamonds supplies premium white HPHT lab grown diamonds (DEF & GHI ranges) to global retailers and manufacturers. From IGI-certified stones to bulk make-to-order requirements, we provide consistent quality and wholesale pricing directly from our Surat facility.
- Factory direct
- Global retailer supply
- Wholesale pricing
- Bulk & Custom Sizes
Wholesale Availability – White HPHT Lab Grown Diamonds
Our White HPHT Lab Grown Diamonds are supplied exclusively to diamond retailers, manufacturers, and professional resellers. This inventory is designed for businesses that value ethical sourcing, consistency, and dependable long-term supply.
- Wholesale pricing visible after verified retailer login
- Bulk and volume order support
- Matching stones
- Custom size, cut, and quality requests
- Certification available on request for eligible sizes and grades
White HPHT Lab Grown Diamond Quality & Range
At Ocean Star, we provide meticulously grown white lab grown diamonds that meet both commercial and premium standards. Each stone is selected for brilliance, consistency, and reliable availability, ensuring your collections maintain exceptional quality and elegance.
Color Grades
- DEF – Superior white diamonds, ideal for high-end pieces.
- GHI – Near-white diamonds, offering a cost-effective option without compromising quality.
Sizes
- Melee diamonds – Perfect for accent pieces and delicate designs.
- Commercial sizes – Standard options for everyday production.
- Larger stones – Available on request for custom or statement pieces.
Certification Options
- IGI-certified – Available for selected sizes and quality grades.
- Non-certified – Ideal for cost-effective production and bulk orders.
Our team collaborates with retailers to ensure the perfect balance of quality, size, and pricing to match your brand positioning.
Shapes






Live White HPHT Lab Grown Diamonds Inventory
Browse our ethically sourced, high-quality lab diamonds. Wholesale pricing is available exclusively for registered retailers.
Need a specific size or matching stones? Request Custom Sourcing
Make-to-Order, Bulk & Large Size Supply
Empowering retailers and manufacturers with a reliable, risk-free supply chain for premium white HPHT lab grown diamonds.
Custom Precision
Order custom sizes and non-stock dimensions tailored specifically to your unique diamond designs and CAD requirements.
Matching Layouts
We expertly source and pair matching stones for high-end sets, ensuring uniformity in brilliance and dimensions.
Bulk Consistency
Large-volume requirements with strictly consistent grading. Perfect for brands maintaining high standards across collections.
Production Support
Secure repeated supply for your running designs, allowing you to scale production without the burden of inventory risk.
Specialty Stones
Access exceptional, large-carat white diamonds based on current availability for your most exclusive clients.
Why Source White HPHT Lab Grown Diamonds from Ocean Star Diamonds?
Unlike traditional marketplaces, we operate as a factory-direct B2B supplier. By eliminating middlemen, we empower retailers to protect margins and maintain quality consistency.
Surat-Based Manufacturing Ecosystem
Integrated production within the global hub of diamond manufacturing.
Controlled Quality Selection
Each white lab grown diamond is carefully selected to ensure uniform brilliance.
Transparent Grading Practices
Clear, honest grading that supports trust and long-term retail credibility.
Direct Communication with Decision-Makers
No intermediaries—only clear, efficient coordination.
Flexible Certification Options
Certification aligned with your market requirements.
Reliable Timelines for Repeat Orders
Consistent delivery schedules built for growing demand.
Precision-Engineered Quality & Global Certification
Certification & Quality Assurance
At Ocean Star Diamond, we provide a versatile inventory of white HPHT lab grown diamonds, available with or without formal grading to suit your specific commercial requirements and technical applications.
IGI Certification
Official grading reports from the International Gemological Institute are available upon request for full transparency on 4C parameters.
Clear Disclosure
We maintain strict ethical standards with full disclosure of the origin, growth method, and grading of every stone in our inventory.
Commercial Guidance
Our consultants help you decide when third-party certification is a market necessity and when non-certified options offer a competitive advantage.
Logistics, Delivery & Export Readiness
Our white lab grown diamonds are supported by a logistics framework built for global trade. From secure handling to export compliance, every process is designed to deliver confidence, consistency, and seamless cross-border movement for our business partners.
Secure Packaging
Every diamond is housed in tamper-evident, high-security packaging and fully insured to guarantee it arrives in pristine condition.
Reliable Dispatch
We prioritize your business timeline with scheduled dispatches and 24/7 tracking, ensuring your inventory levels remain optimal.
Export Support
Our experts manage all international trade documentation and compliance, simplifying the import process for global retailers.
Bulk Planning
Strategic logistics consulting for large-scale orders to optimize shipping costs and streamline supply chain efficiency.
Access Wholesale Pricing & Live Inventory
- Verified wholesale pricing for trade partners
- Consistent supply of premium white lab grown diamonds
- Ethical, conflict-free, and sustainable sourcing
- Dedicated diamond specialists for B2B support
