18.40 ct Natural Ceylon Unheated Chrysoberyl Rough from Nivithigala, Sri Lanka – Clean Facet Grade River-Worn Gem Rough

Stone Identity & Quality

This is a Natural Ceylon Unheated Chrysoberyl rough weighing 18.40 ct and measuring 22.5 × 10 × 7.5 mm. It was sourced from Nivithigala village around mining in Sri Lanka and is presented as facet-grade river-worn chrysoberyl rough. The stone shows a clean internal appearance in rough evaluation, a useful elongated body, and natural alluvial surface features. It remains in its natural unheated condition, making it suitable for gem cutters, dealers, collectors, and buyers who appreciate Sri Lankan chrysoberyl rough from direct source areas.

Color & Visual Characteristics

The rough shows a yellow-green chrysoberyl body appearance, with brighter transparent areas visible when light passes through the stone. The outer surface has a natural river-worn texture, giving the stone a soft alluvial look while still allowing body color and internal transparency to be observed. The color should be evaluated under different light sources before any final cutting plan is made.

Internal & External Features

This chrysoberyl rough has a smooth, naturally worn alluvial surface with visible natural marks from river movement and geological formation. Based on rough inspection, the stone appears clean, with useful transparent areas and no major visible issue stated. However, final clarity should only be confirmed after preforming or cutting, because rough stones can reveal hidden features once the outer skin is removed.

Cutting, Specimen, or Treatment Potential

This stone is presented as facet-grade rough, and its elongated shape may offer practical cutting possibilities after proper planning. A cutter should study the best orientation, depth, clean area, color placement, and expected yield before deciding the final shape. Possible cutting designs may depend on how the stone behaves after preforming. No final weight, shape, or clarity result should be assumed before professional cutting evaluation.

Source & Ethical Position

Danushka Gems & Minings presents this chrysoberyl rough with clear source-connected information from Nivithigala village around mining in Sri Lanka. Our work focuses on natural gemstones sourced through Sri Lankan mining areas, direct dealers, and practical rough evaluation. We aim to present stones honestly, with clear details on weight, measurements, treatment, origin, and cutting potential, so buyers can make informed decisions before purchasing, cutting, or certifying.