Natural Andalusite 1.00 ct – Cushion Cut Pleochroic Stone from Kolonna Sri Lanka

Weight 1.00 Ct
Dimensions 6.1 × 5.9 × 3.9 mm
Variety

Natural Andalusite

Color

green to reddish brown pleochroic

Clarity

Clean

Treatment

Unheated

Shape

Cushion

Mining Location

Kolonna village around mining in Sri Lanka

This natural andalusite weighing 1.00 carat is sourced from Kolonna village around mining in Sri Lanka, a region within the gem island Sri Lanka known for producing unique and less common gemstones.

Andalusite is valued for its pleochroism, meaning it can display multiple colors depending on the viewing angle. This gemstone shows a combination of green, brown, and reddish tones, making it visually dynamic without any treatment.

The stone is cut in a cushion shape measuring 6.1 × 5.9 × 3.9 mm, featuring a modified cross-cut pavilion. This cutting style enhances internal reflections and allows the pleochroic colors to be clearly visible across the surface. The clarity is clean, supporting consistent light performance.

Andalusite has a hardness of approximately 6.5 to 7.5 on the Mohs scale, making it suitable for most jewelry types with proper care. This stone is completely unheated and untreated, preserving its natural optical characteristics.

This piece is ideal for collectors or jewelry manufacturers looking for gemstones with natural color variation and unique optical behavior.

Gemstone Details:

Weight: 1.00 ct

Measurements: 6.1 × 5.9 × 3.9 mm

Shape: Cushion

Cut: Modified cross-cut pavilion

Color: Green, brown, reddish (pleochroic)

Clarity: Clean

Treatment: Unheated

Origin: Kolonna village around mining in Sri Lanka

Frequently Asked Questions

Yes, this is a natural andalusite formed through geological processes.

No, this gemstone is completely unheated and untreated.

It was sourced from Kolonna village around mining in Sri Lanka.

No, this is not a color-change stone. Andalusite shows pleochroism, meaning different colors appear from different viewing angles, not from different lighting types.

Yes, andalusite is suitable for jewelry, especially pendants and rings with proper care.

Sri Lanka, known as the gem island Sri Lanka, produces gemstones with natural colors, good clarity, and reliable origin.

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