This natural Chrome Tourmaline weighs 1.69 carats and is fashioned in an elegant oval mixed cut, combining a classic outline with a facet arrangement designed to enhance the gemstone’s colour, transparency and optical character.
Measuring approximately 9.0 × 6.5 × 4.0 mm, the gemstone presents balanced proportions and a substantial face-up appearance suitable for individual jewellery design or gemstone collecting.
The stone displays a distinctive yellowish-green body colour with noticeable variation under different illumination conditions. Under gemmological lighting, the observed appearance may shift through yellow to green tones, giving the gemstone a dynamic colour presentation as the illumination changes.
Chrome Tourmaline derives its characteristic green colour from trace elements such as chromium and/or vanadium within the Tourmaline structure. These chromophores can produce strong green coloration and may also influence the stone’s response to different light sources and gemmological filters.
When examined through a Chelsea filter under suitable illumination, this specimen displays a green to reddish response. This filter response should be distinguished from a conventional colour-change phenomenon: a Chelsea filter selectively transmits specific wavelengths and is used as a supporting gemmological observation rather than as proof of gemstone identity or natural colour origin on its own.
The gemstone is transparent and has a clarity comparable to approximately SI2, with natural internal inclusions and growth-related features visible within the material. These characteristics influence internal cleanliness but do not prevent the stone from retaining good transparency and an attractive face-up appearance.
The oval mixed cut is assessed as good, with good to very good faceting and good symmetry. The polish is particularly strong, producing a refined surface finish and enhancing the gemstone’s characteristic vitreous luster.
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 attractive yellowish-green colour, transparent body and distinctive response under varying illumination, this 1.69 ct natural Chrome Tourmaline offers considerable gemmological and visual interest. Its well-executed oval cut, excellent polish and untreated condition make it an appealing choice for a distinctive custom jewellery design or a carefully documented gemstone collection.
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