Natural Violet Blue Tanzanite · 0.030 ct · Round · Tanzania

 12,78

Natural Tanzanite · 0.030 ct · Round Brilliant Cut

Natural light violet-blue Tanzanite with a calibrated 2.0 mm round brilliant cut and individual NGB quality evaluation.

NGB Score: 92/100 · Excellent
NGB Verification: NGB-000013
Gently Heated · Exact Gemstone Shown · Only 1 Available

1 in stock

NGB Reference: NGB-000013 SKU: FA-TANZ026BP-003-574 Category: Brand:
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A natural violet blue Tanzanite weighing 0.030 ct, fashioned as a precise round brilliant cut. The gemstone displays an attractive light violet-blue appearance with characteristic pleochroism and lively light return for its calibrated size.

Its balanced proportions and polished faceting make it suitable for delicate fine-jewellery applications, accent-stone settings and precision designs.

Tanzanite is the blue-to-violet variety of zoisite. This gemstone has been gently heated, a commonly accepted treatment used to develop Tanzanite’s characteristic blue-violet colour.

This is a unique natural gemstone. You will receive the exact gemstone shown in the product photographs.

Overall Score: 92.0/100

NGB Grade: Excellent

Quality Evaluation

Color18.0/20
Clarity19.0/20
Cut19.0/20
Optical Performance18.0/20
Overall Appeal18.0/20

Evaluation Notes

This natural Tanzanite displays an attractive light violet-blue colour with pleasing brilliance and characteristic pleochroism. The round brilliant cut shows good symmetry and a balanced appearance for its small calibrated size. No visible chips or surface damage were observed in the available evaluation material.

Species

Zoisite

Gemstone Variety

Tanzanite

Color

Blue

Shape

Round

Cut

Brilliant Cut

Treatment

Heated

Origin

Tanzania

Transparency

Transparent

Gemological Properties

Carat Weight0.03 ct
Dimensions2.0 × 2.0 mm
TransparencyTransparent
ClarityVS1
Refractive Index1.691–1.700
Specific Gravity3.35
Hardness6–7 Mohs
Birefringence0.009
Crystal SystemOrthorhombic
Dispersion0.021
LusterVitreous
Color DescriptionLight violet-blue
Transparency NotesTransparent with good light transmission.
Natural CharacteristicsMinor natural internal characteristics consistent with natural Tanzanite.

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