80 ct Ceylon Natural Unheated Sapphire Crystal Parcel – 13 Blue, Yellow and Colorless Crystals from Sri Lanka

Stone Identity & Quality

This parcel contains 13 Ceylon natural unheated sapphire crystals with a combined weight of 80 ct. The individual crystals range from 10.40 ct to 2.10 ct and were sourced from Pelmadulla, Rakwana, Kalawana, and Ratnapura villages around mining in Sri Lanka.

The collection includes blue, yellow, and near-colorless natural corundum crystals with excellent vitreous luster, glassy body material, naturally occurring growth marks, and a variety of preserved crystal shapes.

These stones are classified as non-facet-grade crystal material. Their main value lies in their natural crystal formation, specimen character, source identity, surface structure, and color variety rather than standard cutting potential.

Color & Visual Characteristics

The parcel displays a natural range of sapphire colors, including blue, yellow, pale bluish, grayish-blue, and near-colorless tones. The color appearance may vary depending on the direction of light, crystal thickness, internal zoning, and natural surface texture.

Several pieces show a transparent to translucent glassy body appearance, while others contain visible color concentration or zoning. The excellent vitreous luster gives the crystals a bright reflective surface and allows their natural formation details to become more visible under direct lighting.

The different colors and unusual elongated forms make this collection visually interesting for display, study, and source-based sapphire appreciation.

Internal & External Features

These sapphire crystals preserve naturally occurring growth marks, layered surface patterns, crystal faces, uneven terminations, and original formation features. Some pieces show internal zoning, inclusions, fractures, or natural structural characteristics that are normal in uncut sapphire crystals.

The external growth lines and glassy surfaces provide useful information about the way the crystals developed naturally. Their elongated, pointed, double-ended, and irregular shapes make each piece different.

Because these are natural specimens, surface marks and internal features should be appreciated as part of their geological identity rather than judged according to the standards used for finished gemstones.

Cutting, Specimen, or Treatment Potential

This collection is presented mainly as natural sapphire crystal and specimen material, not as standard facet-grade rough.

Individual crystals could be examined separately for polishing, windowing, educational cutting, or special creative projects. However, no cutting result, finished weight, clarity improvement, or usable yield can be guaranteed.

Cutting these crystals may remove the natural growth marks and original shape that contribute significantly to their specimen value. For that reason, collectors and buyers should consider preserving the crystals in their natural form before making any cutting decision.

The parcel remains in its natural unheated condition, with no treatment claimed beyond the provided untreated status.

Source & Ethical Position

These crystals were sourced from Pelmadulla, Rakwana, Kalawana, and Ratnapura villages around mining in Sri Lanka. The parcel reflects the natural color and formation diversity found across several Sri Lankan gem-producing areas.

Danushka Gems & Minings focuses on source-connected gemstone supply, honest material classification, practical evaluation, and clear presentation. We distinguish between facet-grade rough, cutting material, and specimen-quality crystals so that buyers can understand the realistic purpose and value of each parcel.

Our aim is to provide natural gemstones and crystals with transparent origin information and responsible descriptions for collectors, dealers, jewelers, cutters, and international clients.