Science & Certification
Understanding Type IIa CVD Diamonds
Chemical Vapour Deposition (CVD) crystallizes real carbon atoms in plasma chambers under vacuum, reproducing the exact pressure and heat of natural earth mantle conditions.
100% Real Carbon Matrix
Identical hardness of 10 on the Mohs scale, refractive index of 2.42, and supreme optical brilliance. Passes all diamond testers.
IGI Laser Inscribed
Independently certified by the International Gemological Institute (IGI). Each stone bears its unique report number micro-inscribed.
Ethical & Conflict-Free
Zero open-pit mining or ecosystem disruption. Direct pricing allows for larger carat weights within your luxury budget.
Authenticity Comparison Matrix
| Attribute | STAR JEWELLZ CVD | Mined Diamond | Moissanite / CZ |
|---|---|---|---|
| Chemical Composition | Pure Carbon (C) | Pure Carbon (C) | SiC / ZrO2 |
| Hardness (Mohs Scale) | 10 (Maximum) | 10 (Maximum) | 9.25 / 8.5 |
| Official Certification | IGI Official Report | IGI / GIA Report | Standard Card |
| Ecological Footprint | Zero Earth Displacement | High Ecological Impact | Simulant Alloy |