Technical Details
Product
specifications.
Full technical specifications and capabilities for our lab-grown rough and polished diamond lines.
Physical Parameters
Technical Specs
| Parameter | Detail |
|---|---|
| CVD Growth Method | Plasma-Enhanced Chemical Vapor Deposition |
| HPHT Growth Method | Belt / Cubic / Split-Sphere Press |
| Rough Sizes (CVD) | 0.5 ct to 10 ct per crystal |
| Rough Sizes (HPHT) | 1 ct to 20 ct per crystal |
| Color Range (Rough) | D–J (colorless to near-colorless) |
| Clarity Range (Rough) | FL to SI2 (post-polish estimate) |
| Crystal System | Cubic (Isometric) |
| Available Shapes (Rough) | Octahedron, Cube, Dodecahedron, Irregular |
Solutions Matrix
Capabilities & Services
Tailored services designed to align reactor parameters with custom cutter and diamond trader orders.
Custom Rough Specifications
- Specific carat ranges on order
- Color and clarity pre-selection
- Crystal shape preferences for specific cutting plans
- Bulk orders with consistent lot quality
Quality Assurance
- 100% screening via UV fluorescence
- FTIR analysis for Type IIa confirmation
- Raman spectroscopy verification
- Full lot documentation and certificates
Polished Specifications
- All standard Rapaport sizes
- Matching lots for jewellery manufacturing
- Melee in matched parcels
- Custom cutting on request for special shapes
Certifications & Compliance
- IGI grading for all polished goods
- Kimberley Process compliant documentation
- Lab-grown origin declaration
- Export-ready documentation (GMP/Invoice/KP cert)
Technology Details
- CVD reactor: 915 MHz microwave plasma
- HPHT press: 5–7 GPa, 1300–1600°C
- Seed preparation and quality-matched growth
- Post-growth laser cutting and cleaving
Packaging & Delivery
- Secure diamond papers and boxes
- Melee in heat-sealed parcels
- International courier with insurance
- Lead time: 2–4 weeks for custom orders
Common Queries
Frequently Asked Questions
CVD (Chemical Vapor Deposition) grows diamonds atom-by-atom in a plasma chamber, resulting in high-purity single crystals (mostly Type IIa). HPHT (High Pressure High Temperature) mimics Earth's natural diamond growth using geological presses, producing high-quality crystals suitable for large sizes and industrial uses.
Yes, lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They are composed of pure carbon in a cubic crystal structure, and are graded using the same standards (Cut, Color, Clarity, Carat) by independent labs like IGI.
Typically, growth runs take between 2 to 4 weeks depending on the target crystal size and parameters. Post-growth processing (laser cutting, block preparation) takes an additional week.
Yes, all our polished diamonds of significant size (typically 0.3 ct+) come with independent certifications from the IGI (International Gemological Institute), complete with grading reports and laser inscriptions.
Absolutely. SolDiamonds is fully compliant with global trade protocols, including the Kimberley Process documentation where applicable, proper origin declarations, and certified custom clearing paperwork.
Certifications & Standards
Our lab-grown diamonds meet international standards for the global diamond trade.