🌿 Jewelry-Cutting Grade Lab-Created Diamond Crystal | Eco-Friendly, Cost-Effective, and Brilliant
💎 Product Overview
The SinoDiam SI1–SI2 Grade B HPHT Lab-Grown Rough Diamond is designed for jewelry diamond cutting, processing, and calibration applications. Produced using advanced High Pressure High Temperature (HPHT) technology, these rough crystals feature excellent transparency, stable crystal morphology, and natural diamond-like hardness—making them ideal raw materials for faceting, re-cutting, and fine jewelry manufacturing.
With controlled growth and uniform crystal structure, SinoDiam rough diamonds provide cutters and jewelry manufacturers with a consistent, traceable, and sustainable alternative to mined rough stones.
✨ Key Features & Advantages
- 💠 Natural Diamond Equivalence
Each HPHT-grown rough crystal shares the same chemical composition (pure carbon), crystal lattice, and optical properties as natural diamonds—ensuring perfect compatibility for cutting and polishing into high-quality gemstones. - 🌍 Ethical & Sustainable Sourcing
100% lab-created and conflict-free, grown in controlled environments without mining impact. Ideal for brands committed to eco-friendly, carbon-neutral, and sustainable diamond supply chains. - 🔬 Uniform Quality & High Purity
SI1–SI2 Grade B ensures minimal inclusions, good transparency, and consistent growth quality—perfect for standardized cutting and grading processes. - 💰 Cost-Effective Cutting Material
Offers a balanced quality-to-price ratio, providing jewelry manufacturers and wholesalers with affordable rough diamond feedstock for commercial cutting and calibration.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Cultivation Technology | HPHT (High Pressure High Temperature) |
| Product Type | Rough Lab-Grown Diamond Crystal |
| Clarity Grade | SI1–SI2 |
| Crystal Shape | Cubic / Octahedral (optional mixed morphology) |
| Color Range | Near-colorless to light yellow-white (customizable) |
| Size Range | 0.5–5.0 carats (customizable lots available) |
| Applications | Diamond cutting, jewelry faceting, calibration, research, and training |
| Certification | Quality report available upon request (clarity, weight, color, morphology) |
💍 Applications & Value
- Jewelry Cutting Feedstock — Ideal raw material for faceting, round brilliants, and fancy shapes, supporting jewelry manufacturers and cutters.
- Brand & Lab Production Supply — Consistent quality makes it suitable for batch production of polished stones for engagement rings and accessories.
- Sustainable Sourcing for Wholesalers — Enables traceable, eco-friendly diamond supply chains, aligning with ESG and conflict-free certification programs.
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