Diamond Certification & Quality Standards
At Ocean Star Diamonds, diamond certification and quality transparency define every aspect of our B2B partnerships. As a Surat-based manufacturer and wholesale supplier, we provide certified and non-certified lab-grown diamonds and moissanite, enabling retailers to select stones that align perfectly with their market positioning, pricing strategy, and customer expectations. Our diamond certification processes ensure complete transparency and confidence for every transaction.
Lab-Grown Diamond Certification & Quality Standards
IGI • Internal Grading
We offer both certified and non-certified lab-grown diamonds based on size, quality, and commercial application.
Clear Disclosure
Certification status confirmed before approval
Stone grading details communicated upfront
No post-sale surprises, ensuring transparent business practices
IGI Diamond Certification (International Standards)
- IGI certification available for selected sizes and quality grades
- Widely accepted for formal diamond verification and trade confidence
- Ideal for premium, branded, and specification-driven diamond programs
- Certification provided on request based on technical feasibility
Non-Certified Lab-Grown Diamonds
- Well-suited for bulk sourcing, commercial diamond supply, and cost-sensitive segments
- Graded internally using consistent, standardized parameters
- Optimized for everyday diamond programs and high-volume trade requirements
Certified Moissanite Quality Standards & Stone Specifications
Our moissanite stones are supplied under professionally defined quality standards designed for the diamond and gemstone trade. Every stone is accompanied by transparent disclosure of color grade, cut quality, and size, providing confidence and consistency for manufacturing, retail, and resale purposes.
White Moissanite Quality Certification
Our white moissanite is graded for predictable brilliance across bridal, fashion, and value-focused designs.
Bright white for a clean, diamond-like look; warmer tones for cost-effective collections
Precision-cut for fire, sparkle, and visual appeal
Sizes from small accents up to 15 carats
Uniform quality across batches for repeat and bulk orders
Colored Moissanite Quality Certification
Colored moissanite is supplied in controlled colors with strict quality checks for even color, polish, and durability.
Colors include blue, green, yellow, champagne, and grey; custom colors available
Consistent tone across parcels and batches
Ideal for fashion-forward, fine design, and custom gemstone programs
Maintains visual stability and reliable performance
Fancy Color Lab-Grown Diamond Certification & Transparency
Our diamond certification framework for fancy color lab-grown diamonds is built on precision, transparency, and commercial clarity — ensuring confidence for retailers and buyers alike.
Honest Color & Visual Disclosure
Saturation
Clear disclosure of color strength, depth, and overall saturation without exaggeration or ambiguity.
Visual Appearance
Face-up appearance assessed under standard lighting to reflect real-world viewing conditions.
Market Suitability
Guidance on how each lab grown diamond color performs across premium, fashion, and commercial segments.
Accurate Color Intensity Identification
Fancy color lab-grown diamonds are evaluated and disclosed using standardized color intensity classifications to maintain visual and commercial consistency.
Light • Fancy • Fancy Intense • Fancy Vivid
Certification Availability
Certification is available for selected fancy color lab-grown diamonds where it enhances retail confidence, export compliance, and premium positioning.
Saturation
- Certified stones: Recommended for premium retail, international trade, and high-value consumer sales.
- Non-certified stones: Suitable for design-driven collections, competitive pricing, and fast-moving inventory.
Internal Diamond Quality Control & Certification Standards
At Ocean Star Diamonds, every diamond undergoes a rigorous internal quality control process to ensure precision, consistency, and professional-grade reliability for retailers and jewelers.
All these steps guarantee trusted diamond certification for bulk orders and repeat production.
Accurate Color Verification
Clarity & Inclusion Assessment
Cut, Symmetry & Polish Control
Size & Calibration Precision
Visual Matching & Uniformity
Precision-Matched Diamond Parcels & Consistency
Our precision-matched diamond parcels are prepared for bulk and repeat orders, ensuring consistent color, clarity, size, and overall appearance across every parcel.
Color & Clarity Matching
Diamonds are carefully sorted to maintain uniform color tones and clarity grades, creating a seamless visual result.
Accurate Size Calibration
Each stone is checked within tight size and weight tolerances, supporting smooth setting and efficient manufacturing.
Uniform Visual Appearance
Parcels are reviewed for balanced brilliance and visual harmony, ensuring consistency under standard lighting.
Ideal for Consistent Diamond Production Programs
Earrings
Perfectly matched pairs with equal brilliance
Bracelets
Continuous sparkle across multiple stones
Multi-Stone Diamond
Harmonized diamonds for detailed designs
Running Collections
Reliable consistency across repeat orders
Our Disclosure, Certification & Ethical Stone Practices
Transparency and authenticity guide our operations. Our certification and disclosure framework ensures every stone meets clear verification, ethical sourcing, and quality standards.
Lab-Grown & Moissanite Only
All gemstones supplied are exclusively lab-grown diamonds or moissanite. We do not trade, mix, or represent mined diamonds in any form.
Lab-Grown & Moissanite Only
Each stone is clearly identified and handled separately. There is no substitution between lab-grown diamonds and moissanite, ensuring complete accuracy and trust in every transaction.
Clear & Verifiable Disclosure
Every stone is supplied with transparent documentation, clearly outlining:Certification & grading availability ● Stone identification (Lab-grown or Moissanite) ● 4Cs details: Cut, color, clarity, and carat
Ethical & Responsible Sourcing
Our sourcing model prioritizes environmentally responsible production, ethical labor, and reduced environmental impact.
“We believe transparent disclosure and reliable diamond certification build long-term partnerships, not one-time transactions”
Expert Diamond Certification Guidance for Retailers & Wholesalers
Strategic diamond certification support designed to help diamond retailers select, price, and present stones with confidence, clarity, and commercial success.
Certification Strategy
Advice on when to use IGI Certified stones for premium value vs. Internal Grading for pricing flexibility.
Market Optimization
We recommend the ideal color and clarity ranges based on your specific target audience and regional demand.
Cost Control
We help you source diamonds that offer maximum visual beauty (eye-clean) without paying unnecessary premiums for technical grades.
Sales Empowerment
We equip your team with the knowledge to explain grading reports and value propositions confidently to end consumers.
Final Inspection, Secure Dispatch & Delivery Assurance
Quality Control & Logistics
Our certification process extends beyond grading. Before dispatch, every diamond undergoes a structured final inspection and logistics review to ensure order accuracy, secure packaging, and shipment reliability for domestic and international partners.
- Final Order Verification: Each diamond is re-checked against confirmed specifications including grading details, measurements, and certification alignment before shipment approval.
- Secure & Tamper-Proof Packaging: Protective packaging standards are used to maintain diamond integrity and traceability during domestic and international transit.
- Bulk Shipment Risk Management: Wholesale and bulk shipments are strategically planned to reduce handling, minimize transit risk, and ensure dependable delivery timelines.
100%
Stones are re-checked for order accuracy
Secure
Secure packaging is used for domestic and international deliveries
Global
Bulk shipments are planned to minimize risk