€ 383,19
Natural Clear Quartz · 13.990 ct · Cushion Custom Cut
Transparent natural Quartz with individual Natural Gems Belgium evaluation.
NGB Reference: NGB-000016
Ships from Belgium
1 in stock
A natural clear Quartz weighing 13.990 ct, fashioned in a custom faceted cut. Its transparent, near-colourless appearance highlights the geometry of the faceting and the natural internal character of the gemstone.
This individually evaluated gemstone is suitable for collector use, bespoke jewellery design and display. No indications of heating or other treatment are recorded for this natural Quartz.
This is the exact natural gemstone shown in the product photographs.
Overall Score: 83.0/100
NGB Grade: Good
| Color | 19.0/20 |
|---|---|
| Clarity | 19.0/20 |
| Cut | 14.0/20 |
| Optical Performance | 15.0/20 |
| Overall Appeal | 16.0/20 |
Individually evaluated natural Clear Quartz, with exceptional clarity, and a flexible custom cut
| Species | Quartz |
|---|---|
| Gemstone Variety | Quartz |
| Gemstone Sub-variety | Clear Quartz |
| Color | Colorless |
| Shape | Cushion |
| Cut | Custom Cut |
| Treatment | Unheated, Untreated |
| Transparency | Transparent |
| Carat Weight | 13.99 ct |
|---|---|
| Dimensions | 16.0 × 13.4 × 8.6 mm |
| Transparency | Transparent |
| Clarity | and |
| Refractive Index | 1.544–1.553 |
| Specific Gravity | 2.651 |
| Hardness | 7 Mohs Mohs |
| Birefringence | 0.009 |
| Crystal System | Trigonal |
| Dispersion | 0.013 |
| Luster | Vitreous |
| Color Description | Almost colourless / clear |
| Transparency Notes | Transparent. |
| Natural Characteristics | Natural internal characteristics as documented in the individual evaluation. |
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