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.

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.

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

At Ocean Star Diamonds, we provide diamond retailers and manufacturers with a consistent supply of premium, ethically white HPHT lab grown diamond. Join our network to streamline your sourcing.