Natural Golden Rutilated Quartz · 3.855 ct · Octagon Mixed Cut

$109.25

Natural Golden Rutilated Quartz weighing 3.855 ct, featuring a transparent Quartz host with long, well-defined golden Rutile needle inclusions. Fashioned in an elegant elongated octagonal mixed cut and measuring 11.9 × 7.8 × 5.1 mm, this gemstone combines strong internal contrast, good transparency and distinctive collector appeal.

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NGB Reference: NGB-000162 SKU: FA-QUAR026RG-003-505 Category: Brand:
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This natural Golden Rutilated Quartz weighs 3.855 carats and combines a transparent Clear Quartz host with prominent, long and well-defined golden Rutile needle inclusions. Fashioned in an elegant elongated octagonal mixed cut, the gemstone offers a distinctive balance between natural mineral structure and refined faceting.

Measuring approximately 11.9 × 7.8 × 5.1 mm, the stone presents attractive elongated proportions and a substantial face-up appearance. The octagonal outline frames the internal Rutile pattern effectively, allowing the golden needles to remain a central visual feature of the gemstone.

The Quartz body is transparent, with reasonable overall clarity considering the abundance of natural Rutile inclusions. Strong golden acicular inclusions extend through the stone in clearly visible linear formations, producing pronounced contrast against the colourless to lightly yellow-toned Quartz host.

Rutilated Quartz is a natural inclusion variety of Quartz containing crystals of Rutile (TiO₂). These Rutile inclusions typically form as fine to substantial needle-like crystals and may appear golden, reddish, brown, black or other related tones depending on their composition and optical interaction with the host material.

Unlike a conventional optical phenomenon such as chatoyancy or adularescence, the visual character of Golden Rutilated Quartz is created primarily by the three-dimensional distribution, orientation and reflectivity of the Rutile inclusions. Changes in viewing angle and illumination can therefore produce varying metallic highlights and contrasting internal reflections.

The elongated octagonal mixed cut has been selected to provide a balanced geometric presentation while preserving the visual importance of the included Rutile. Its broad table and stepped outline provide good visibility into the internal structure, while the mixed facet arrangement contributes additional brightness and surface reflection.

The Quartz host displays a vitreous luster, while the included Rutile needles may show stronger submetallic to adamantine reflections under direct illumination. This contrast contributes significantly to the gemstone’s distinctive appearance.

Natural fissures, internal growth features and minor surface-reaching characteristics may occur around the Rutile inclusions. These are inherent features of this type of material and form part of the individual gemmological character of the stone.

Golden Rutilated Quartz is commonly heated in the trade to help stabilise included material. This should be regarded as a general treatment practice and does not, by itself, confirm that this individual gemstone has undergone heating unless supported by specific documentation.

With its strong golden Rutile needles, transparent Quartz host and elegant elongated octagonal proportions, this 3.855 ct Golden Rutilated Quartz has excellent individual character. Its combination of natural mineral architecture and refined cutting makes it an appealing choice for collectors or for a distinctive custom jewellery design where the internal Rutile pattern can remain the visual focus.

Overall Score: 87.0/100

NGB Grade: Very Good

Quality Evaluation

Color17.0/20
Clarity17.0/20
Cut17.0/20
Optical Performance18.0/20
Overall Appeal18.0/20

Evaluation Notes

This natural Golden Rutilated Quartz presents a very good overall gemmological quality profile, combining a transparent Quartz host with a strong network of long, well-defined golden Rutile inclusions. The elongated octagonal mixed cut provides a balanced face-up presentation and enhances visibility of the internal mineral structure, while the contrast between the clear host and metallic Rutile creates strong visual interest. Minor inclusion-related fissures and structural features slightly limit overall refinement, but the gemstone retains very good transparency, individuality and collector appeal, supporting a strong quality assessment.

Species

Quartz

Gemstone Variety

Quartz

Gemstone Sub-variety

Golden Rutilated Quartz

Color

Yellow

Shape

Octagon

Cut

Mixed Cut

Treatment

Heated

Transparency

Transparent

Gemological Properties

Carat Weight3.855 ct
Dimensions11.9 × 7.8 mm
TransparencyTransparent
Refractive Index1.544–1.553
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 long, well-defined needle-like structures. Fine natural fissures, internal growth features and minor surface-reaching characteristics may also occur around the inclusions. The strong contrast between the clear Quartz host and golden Rutile gives the gemstone pronounced individual character and collector appeal.

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