Natural Golden Rutilated Quartz · 3.720 ct · Octagon Mixed Cut

$104.87

Natural Golden Rutilated Quartz weighing 3.720 ct, featuring a transparent Clear Quartz host with strong golden Rutile needle inclusions. Fashioned in an elegant elongated octagonal mixed cut and measuring 11.9 × 7.9 × 5.0 mm, this gemstone combines attractive transparency, warm metallic contrast and a distinctive natural inclusion pattern.

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NGB Reference: NGB-000161 SKU: FA-QUAR026RG-003-504 Category: Brand:
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This individually documented Natural Golden Rutilated Quartz weighs 3.720 carats and has been fashioned into an elegant elongated octagonal mixed cut. Its transparent Clear Quartz host contains prominent golden Rutile inclusions, creating a striking natural contrast between the near-colourless Quartz and the warm metallic needle-like structures enclosed within it.

Measuring approximately 11.9 × 7.9 × 5.0 mm, the gemstone presents attractive elongated proportions and a balanced face-up appearance. The octagonal mixed cut provides a structured geometric presentation while allowing the natural Rutile pattern to remain a central visual feature.

A defining characteristic of this specimen is the presence of strong, well-defined golden Rutile needles. These acicular inclusions form an individual network within the transparent Quartz and create changing golden reflections as the stone is viewed under different lighting conditions.

Natural Golden Rutile Inclusions

Rutilated Quartz consists of natural Quartz containing crystals of Rutile, a titanium dioxide mineral (TiO₂). Rutile commonly forms as elongated prismatic or needle-like crystals and may occur in golden, reddish, silvery, brown or black appearances.

In this specimen, the Rutile displays a distinctly golden to yellow appearance, producing a warm internal contrast against the transparent Quartz host. The orientation, density and distribution of these inclusions are unique to the individual gemstone and form an important part of its mineralogical identity.

The good transparency of the Quartz allows the Rutile needles to remain clearly visible throughout the stone. The mixed faceting adds further visual depth by allowing light to interact with both the external facet surfaces and the internal inclusions.

The polished Quartz host itself displays a characteristic vitreous luster, while the enclosed Rutile can show submetallic to adamantine reflections. The reported submetallic appearance therefore relates primarily to the Rutile inclusions rather than to the polished Quartz surface.

The elongated octagonal proportions provide a pleasing balance between gemstone shape and inclusion visibility, making the stone particularly suitable for a bespoke jewellery design in which the natural Rutile pattern remains clearly visible.

Golden Rutilated Quartz is commonly heated to help stabilise included material. Unless heating has been

Overall Score: 90.0/100

NGB Grade: Excellent

Quality Evaluation

Color19.0/20
Clarity17.0/20
Cut18.0/20
Optical Performance18.0/20
Overall Appeal18.0/20

Evaluation Notes

This natural Golden Rutilated Quartz presents an excellent overall quality profile, combining strong transparency with a well-defined network of golden Rutile inclusions. The elongated octagonal mixed cut provides a balanced face-up presentation and supports attractive light interaction, while the warm contrast between the clear Quartz host and metallic Rutile creates strong visual character. Minor inclusion-related fissures or surface features have limited impact on the overall appearance, resulting in an excellent balance of transparency, optical interest and individuality.

Species

Quartz

Gemstone Variety

Quartz

Gemstone Sub-variety

Golden Rutilated Quartz

Color

Multicolor, Yellow

Shape

Octagon

Cut

Mixed Cut

Treatment

Heated

Transparency

Transparent

Gemological Properties

Carat Weight3.72 ct
Dimensions11.9 × 7.9 mm
TransparencyTransparent
ClarityI3, beneficial to the rutile effect
Refractive IndexQuartz 1.544–1.553 Rultile 2.616–2.903
Specific Gravity2.651
Hardness7 Mohs Mohs
Birefringence0.009
Crystal SystemTetragonal
Dispersion0.013
LusterVitreous
Color Descriptionclear/yellow
Transparency NotesTransparent
Natural CharacteristicsProminent golden acicular Rutile inclusions are clearly visible throughout the transparent Quartz, forming a distinctive network of needle-like structures. Fine natural fissures, internal growth features and minor surface-reaching characteristics may also occur around the inclusions. Golden Rutilated Quartz is commonly heated to help stabilise included material; this should be regarded as a general treatment practice unless specifically confirmed for this individual specimen.

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