Natural Tourmaline · 1.78 ct · Octagon · Deep Green · Unheated

Natural Green Tourmaline – 1.78 ct – Modified Octagon – Unheated – Exceptional Gemstone

This natural Green Tourmaline weighs 1.78 carats and is fashioned in a refined modified octagonal cut. Its deep green colour, high transparency and relatively clean internal character create an elegant gemstone with strong visual depth and a distinctive, sophisticated appearance.

Measuring approximately 6.5 × 6.3 × 4.9 mm, the stone has a slightly tapered modified octagonal outline. The emerald-style facet arrangement emphasises the transparency and depth of colour while producing broad, controlled reflections across the face of the gemstone.

The gemstone displays a rich deep green body colour characteristic of fine Green Tourmaline. Green Tourmaline is traditionally referred to in the gemstone trade as Verdelite, although this is a colour-variety or trade designation rather than a separate mineral species. Depending on crystal orientation and illumination, natural pleochroism may produce subtle variations in the intensity and tone of the green colour.

Transparency is high, with a clarity comparable to approximately VS1. Only relatively minor natural inclusions and internal growth features are present, allowing good light transmission through the stone. This degree of internal cleanliness is particularly attractive in a deeply coloured transparent Tourmaline.

The modified emerald cut is assessed as Good to Very Good. Its intentionally modified facet arrangement gives the stone an individual character while maintaining a balanced face-up presentation. Symmetry is assessed as Good, taking the modified outline into account, while the polish is Good to Very Good.

The polished facet surfaces produce an attractive vitreous luster. Combined with the gemstone’s deep, clear green colour and VS1 clarity profile, this results in a refined and visually strong appearance without relying on artificial enhancement.

There are no indications of heating and no indications of any other treatment. The gemstone is therefore presented with its naturally observed colour and internal characteristics without documented enhancement.

With its deep green colour, transparent body, relatively clean VS1 clarity profile and elegant modified emerald cut, this natural Green Tourmaline combines strong visual presence with excellent jewellery potential. Its untreated condition and refined proportions make it an attractive individual gemstone for custom jewellery or a carefully selected collection.