Natural Aquamarine · 2.37 ct · Oval · Mixed Cut · Unheated

$372.86

Natural Aquamarine weighing 2.37 ct, fashioned in an oval mixed cut and measuring approximately 11.0 × 7.0 × 5.0 mm. This transparent gemstone displays a delicate light greenish-blue colour, SI clarity and bright vitreous luster. Its elegant oval proportions and subtle untreated colour give the stone a refined and naturally fresh appearance. Unheated and untreated.

1 in stock

NGB Reference: NGB-000863 SKU: FA-AQUA024GB-001-002 Category: Brand:
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This individually documented natural Aquamarine weighs 2.37 ct and is fashioned in an elegant oval mixed cut, measuring approximately 11.0 × 7.0 × 5.0 mm. The gemstone displays a light greenish-blue body colour, combining the fresh blue character associated with Aquamarine with a subtle green secondary influence.

Aquamarine is the blue to greenish-blue variety of Beryl, the same mineral species that also includes Morganite and Emerald. Its characteristic colour is associated with iron within the Beryl crystal structure, with differences in concentration and oxidation state influencing whether the gemstone appears more blue, greenish-blue or blue-green.

This specimen is transparent and displays an SI clarity profile. Natural internal inclusions and structural features are present under magnification, but they do not significantly interfere with the overall transparency or face-up appearance of the gemstone. The stone therefore retains a clean and visually open character, allowing the light greenish-blue colour and internal facet reflections to remain clearly visible.

The oval mixed cut combines different facet arrangements to balance colour retention, brilliance and visual spread. Its elongated proportions provide a pleasing and versatile face-up presentation, while the naturally vitreous luster contributes additional brightness and enhances the transparent character of the material.

Natural internal veils, small included features, subtle growth structures and minor variations in colour concentration may be visible within the gemstone. These characteristics are consistent with natural Aquamarine and contribute to the individual identity of the specimen.

The light greenish-blue colour gives the stone a fresh and delicate appearance rather than a deeply saturated blue presentation. Because the gemstone is documented as unheated and untreated, the preserved green component forms part of its natural colour character.

With its 2.37 ct weight, transparent SI clarity, light greenish-blue colour and elegant oval mixed cut, this natural Aquamarine offers an attractive balance of refined faceting, natural Beryl character and subtle untreated colour.

Overall Score: 89/100

NGB Grade: Very Good

Quality Evaluation

Color18.0/20
Clarity17.0/20
Cut18.0/20
Optical Performance18.0/20
Overall Appeal18.0/20

Evaluation Notes

This natural Aquamarine presents a very good overall quality profile, combining an attractive light greenish-blue colour with good transparency, an elegant oval mixed cut and bright vitreous luster.
The gemstone displays a fresh natural colour with a soft green secondary influence that adds character without overpowering the dominant blue appearance. Its SI clarity profile allows only moderate natural internal features to remain visible, preserving good transparency and a relatively clean face-up presentation.
The oval mixed cut provides balanced proportions and effective internal reflection, while the transparent material and vitreous luster contribute to a lively overall appearance. The subtle untreated colour also gives the stone a natural and refined character.

The combination of colour quality, SI clarity, transparency, cut, optical performance and overall visual appeal supports a very good 89/100 assessment.

Species

Beryl

Gemstone Variety

Aquamarine

Color

Blue

Shape

Oval

Cut

Mixed Cut

Treatment

Unheated, Untreated

Transparency

Transparent

Gemological Properties

Carat Weight2.37 ct
Dimensions11.0 × 7.0 × 5.0 mm
TransparencyTransparent
ClaritySI
Refractive Index1.567-1.590
Specific Gravity2.66-2.80
Hardness7.5-8 Mohs
Birefringence0.005-0.007.
Crystal SystemHexagonal
Dispersion0.014
LusterVitreous
Color Descriptionlight greenish blue
Transparency NotesTransparent; assessed together with the specimen-specific clarity and internal characteristics.
Natural CharacteristicsThe Aquamarine displays a transparent light greenish-blue body colour with subtle natural variation in colour concentration across the stone. The blue component remains visually dominant, while a gentle green secondary influence contributes to its natural untreated appearance. Fine natural inclusions and internal growth-related features are present, consistent with the recorded SI clarity profile. Small internal veils, minute included crystals and subtle structural variations may be visible under magnification, while the gemstone retains good overall transparency. Localized differences in light transmission and facet reflection occur naturally within the stone, adding visual depth without significantly disturbing the face-up appearance. The internal characteristics remain relatively discreet and allow the light greenish-blue colour and vitreous luster to remain the principal visual features. The combination of transparent Beryl, delicate greenish-blue colour, natural inclusions and subtle internal growth structures gives this Aquamarine a refined and individual natural character.

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