Natural Yellow Topaz · 10.61 ct · Oval · mixed Cut · Unheated · Thailand

 1.185,98

Natural Yellow Topaz, 10.61 ct, oval brilliant cut with a delicate very light yellow colour. Transparent, unheated and untreated, with recorded origin Thailand.

1 in stock

NGB Reference: NGB-000908 SKU: SL-JAOSUA015TP-034-033 Category: Brand:
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This natural Yellow Topaz is an individually documented gemstone presented by Natural Gems Belgium with its specimen-specific identification, measurements and recorded characteristics. Weighing an impressive 10.61 ct, this transparent topaz combines generous proportions with a refined, elegant appearance.

The gemstone displays a delicate very light yellow colour, giving this Yellow Topaz a subtle and sophisticated character rather than an overly saturated appearance. Its soft yellow tone interacts beautifully with the transparent material and the precisely arranged facets of its brilliant cut, creating a bright and lively presentation when viewed under changing light conditions.

Cut into a classic oval shape, the stone measures 14.3 × 12.0 × 7.8 mm. The mixed-cut faceting is designed to enhance light return and visual brightness, while the balanced oval outline gives the gemstone a versatile and timeless profile suitable both for collecting and for consideration in a bespoke jewellery design.

This specimen is recorded as unheated and untreated, preserving the natural character of the material without disclosed enhancement. Its recorded origin is Thailand. For collectors and buyers who value gemstones in their natural state, these characteristics form an important part of the individual identity and documentation of this Yellow Topaz.

As with natural gemstone material, inclusions, subtle colour zoning and minor surface features may occur. These characteristics are part of the stone’s natural formation and contribute to the individuality of each specimen rather than detracting from its authenticity.

Overall Score: 81/100

NGB Grade: Very Good

Quality Evaluation

Color15.0/20
Clarity16.0/20
Cut17.0/20
Optical Performance17.0/20
Overall Appeal16.0/20
Species

Topaz

Gemstone Variety

Topaz

Gemstone Sub-variety

Yellow Topaz

Color

Yellow

Shape

Oval

Cut

Mixed Cut

Treatment

Unheated, Untreated

Origin

Thailand

Transparency

Transparent

Gemological Properties

Carat Weight10.61 ct
Dimensions14.3 × 12.0 × 7.8 mm
TransparencyTransparent
ClarityI3
Refractive Index1.619 – 1.627
Specific Gravity3.49 to 3.57
Hardness8 Mohs
Birefringence0.008 to 0.010
Crystal SystemOrthorhombic
Dispersion0.014
LusterVitreous
Color Descriptionvery light light yellow
Transparency NotesTransparent
Natural CharacteristicsNatural specimen-specific internal characteristics.

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