Natural Amethyst · 7.75 ct · Cushion Mixed Cut

$109.54

Natural Amethyst weighing 7.75 ct and measuring approximately 13.9 × 12.2 × 7.4 mm, fashioned in a cushion mixed cut. The gemstone displays an elegant medium violet to purple colour with softer pinkish-lilac flashes, good transparency and an attractive large face-up presence. Its substantial size makes it particularly suitable as a centre stone for a statement ring or pendant.

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NGB Reference: NGB-000451 SKU: FA-AMET024DP-001-067 Category: Brand:
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Natural Amethyst weighing 7.75 ct and measuring approximately 13.9 × 12.2 × 7.4 mm, fashioned in a substantial cushion mixed cut.

The gemstone displays an attractive medium violet to purple body colour, accompanied by softer pinkish-lilac flashes that become more apparent as the stone is viewed from different angles. Deeper purple concentration is visible toward portions of the outer facet structure, while the broad central area presents a lighter violet tone. This natural variation creates noticeable depth and contrast across the large face-up surface.

Clarity is assessed as VS. The gemstone is transparent overall, with only minor natural internal characteristics visible under close inspection and magnification. These features have limited influence on the overall visual appearance and allow the amethyst to retain a clean and open presentation.

The cushion mixed cut combines a broad crown with a varied arrangement of larger and smaller facets. The generous 13.9 × 12.2 mm face-up dimensions give the gemstone considerable presence, while the pavilion facets generate flashes of brighter violet and pink-purple around the perimeter. Some lighter optical areas are visible through the centre depending on viewing angle, a characteristic of the stone’s individual proportions and facet design.

At 7.75 ct, this is a notably substantial natural Amethyst with an elegant cushion outline, good transparency and a refined violet colour palette. Its size makes it particularly suitable as a centre stone for a statement ring or pendant, as well as for collectors seeking a larger individually cut Amethyst specimen.

Overall Score: 88.0/100

NGB Grade: Very Good

Quality Evaluation

Color17.0/20
Clarity18.0/20
Cut17.0/20
Optical Performance17.0/20
Overall Appeal19.0/20

Evaluation Notes

This 7.75 ct natural Amethyst presents an attractive medium violet to purple colour with softer pinkish-lilac flashes and deeper purple concentration toward portions of the outer facet structure.
Clarity is a strong feature of the stone. With a VS assessment, only minor natural internal characteristics are visible under close inspection, while the gemstone remains transparent and visually clean for its substantial carat weight.
The cushion mixed cut provides a generous face-up appearance and an attractive overall outline. The facet arrangement generates good flashes of violet and purple around the perimeter, although the broad central area shows reduced light return from several viewing angles. This lighter central zone limits the optical performance compared with a more precisely proportioned high-brilliance cut.
Symmetry appears good overall and the polish presents well in the supplied photographs. The substantial 7.75 ct weight, attractive cushion shape and good transparency contribute strongly to the overall appeal.

Species

Quartz

Gemstone Variety

Amethyst

Color

Purple

Shape

Cushion

Cut

Mixed Cut

Treatment

Unheated, Untreated

Transparency

Transparent

Gemological Properties

Carat Weight7.75 ct
Dimensions13.9 × 12.2 × 7.4 mm
TransparencyTransparent
ClarityVS
Refractive Index1.544–1.553
Specific Gravity2.65
Hardness7 Mohs
Birefringence0.009
Crystal SystemTrigonal
Dispersion0.013
LusterVitreous
Color Descriptionmedium violet to purple with soft pinkish-lilac flashes
Transparency NotesTransparent.
Natural CharacteristicsThe gemstone shows natural internal characteristics consistent with Amethyst, including fine pinpoint inclusions, subtle internal veils and small localized growth-related features visible under magnification. Mild colour zoning is present, with lighter violet areas through the central portion and deeper purple concentration toward parts of the outer facet structure. This variation is consistent with natural colour distribution in quartz and contributes to the individual visual character of the stone. The gemstone remains transparent overall, and the internal characteristics are limited enough to support the assigned VS clarity grade. Minor internal reflections can be observed from certain viewing angles, but they do not significantly interfere with the overall face-up appearance. No major structural fractures or prominent surface-reaching inclusions. The observed inclusions and colour variations are natural characteristics and are consistent with the geological growth of natural Amethyst.

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