HPHT Lab Grown Diamonds from Surat Factory
Ocean Star Diamonds - Trusted HPHT Lab Grown Diamonds Supplier
Ocean Star Diamonds is a leading supplier of HPHT lab grown diamonds based in Surat, delivering precision-cut loose diamonds to global retailers and manufacturers. Our HPHT lab grown diamonds are produced using advanced technology to ensure consistent quality, excellent brilliance, and reliable bulk availability for high-volume production and premium collections.
- Factory direct
- Global retailer supply
- Wholesale pricing
- Bulk & Custom Sizes
Bulk HPHT Lab Grown Diamonds for Retailers & Manufacturers
Our HPHT lab grown diamonds inventory is supplied exclusively to diamond retailers, manufacturers, and professional resellers. These HPHT lab grown diamonds are ideal 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
HPHT Lab Grown Diamonds Quality, Sizes & Certification
At Ocean Star Diamonds, we provide meticulously grown HPHT lab grown diamonds that meet both commercial and premium standards. Each of our HPHT lab grown diamonds is selected for brilliance, consistency, and reliable availability, ensuring your collections maintain exceptional quality.
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.
Available Shapes in HPHT Lab Grown Diamonds






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 HPHT Lab Grown Diamonds Supply
Empowering retailers and manufacturers with a reliable, scalable supply chain for premium HPHT lab grown diamonds, designed for consistent quality and long-term business growth.
Custom Precision
Order custom sizes and non-standard dimensions in HPHT lab grown diamonds, precisely tailored to your CAD designs and production requirements.
Matching Layouts
We expertly source and match diamonds for layouts and sets, ensuring uniform brilliance, size consistency, and visual harmony across your collections.
Bulk Consistency
Support large-volume orders with consistent grading and reliable quality, ideal for brands maintaining uniform standards across high-volume collections.
Production Support
Ensure uninterrupted supply for your ongoing designs, helping you scale production efficiently without inventory risk or supply gaps.
Specialty Stones
Access large-carat and specialty HPHT lab grown diamonds based on availability, ideal for high-value and custom client requirements.
Why Choose Ocean Star Diamonds for HPHT Lab Grown Diamonds
Ocean Star Diamonds operates as a factory-direct supplier of HPHT lab grown diamonds, eliminating intermediaries and ensuring better pricing, quality control, and consistent supply for global buyers. Our expertise in HPHT lab grown diamonds helps retailers maintain strong margins and reliable product quality.
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
