Natural Spinel · 2.5 ct · Cushion · Purple · Unheated

This individually documented natural Spinel weighs 2.50 ct and is fashioned in an attractive cushion-shaped mixed cut, measuring approximately 7.6 × 7.3 × 5.3 mm. The gemstone displays a deep purple body colour enriched by pinkish-purple hues, creating an appealing combination of depth, saturation and subtle colour variation.

Spinel is a naturally occurring magnesium aluminium oxide valued for its brilliance, durability and wide range of colours. Purple Spinel can show violet, reddish or pinkish secondary tones depending on its composition and the lighting conditions. In this specimen, the dominant deep purple colour remains clearly visible while the pinkish-purple nuances add warmth and visual complexity.

The gemstone is transparent and displays an SI clarity profile, with natural internal characteristics visible under magnification. These inclusions are consistent with natural gemstone material and do not prevent the stone from maintaining an attractive face-up appearance or good transparency.

The cushion mixed cut has been designed to balance colour retention with internal reflection and brilliance. Its facet arrangement creates a pleasing interaction between the saturated body colour and reflected light, while the naturally vitreous luster contributes additional brightness and surface brilliance.

Natural Spinel belongs to the cubic or isometric crystal system and is singly refractive. Typical gem-quality Spinel has a refractive index of approximately 1.712–1.736, a specific gravity of approximately 3.58–3.61, a dispersion of approximately 0.020 and a hardness of 8 on the Mohs scale, making it a durable gemstone suitable for jewellery use.

This specimen is documented as unheated and untreated, preserving its natural colour, internal characteristics and individual gemstone identity. Its combination of deep purple colour, pinkish-purple secondary hues, transparent material, SI clarity and balanced cushion mixed cut gives this 2.50 ct natural Spinel a distinctive and refined appearance.