| Carat Weight | 0.69 ct |
| Diameter | 10.0 mm |
| Edge Features | < 0.2 mm |
| Side 1, Roughness, Ra | polished, Ra < 5 nm (over 1mm2),special requirements upon request |
| Side 2, Roughness, Ra | polished, Ra < 5 nm (over 1mm2),special requirements upon request |
| Thickness Tolerance | ±0.06-0.07 mm |
| Thickness Dimension | 0.5 mm |
| Thermal Conductivity | 2000 Wm-1K-1 |
| Infrared Transmittance(wavelength: 220nm-50μm) | >68%(except for 4-6 μm position) |