Natural Moonstone Rough · 8.608 ct · Facet Quality

This individually documented natural Moonstone rough weighs 8.608 carats and is presented as facet-quality material suitable for lapidary evaluation and potential faceting. The specimen displays a partly clear body appearance with a slight blue adularescence, giving the rough an attractive and distinctly natural optical character.

Measuring approximately 22.8 × 10.1 × 6.4 mm, the specimen has an elongated natural form that provides useful material for evaluating orientation, potential yield and the most appropriate final cutting design.

The rough is described as half clear, with zones of greater transparency alongside more internally structured areas. This variation is important when planning a finished gemstone, as the cutter must balance transparency, internal characteristics, usable depth and the orientation of the adularescent effect.

A defining feature of this specimen is its slight blue adularescence. This characteristic Moonstone phenomenon appears as a soft bluish sheen produced by the interaction of light with fine internal feldspar structures. The visibility and position of the effect can change as the rough is moved or viewed from different angles.

Careful orientation is particularly important when faceting Moonstone. The internal structure responsible for adularescence must be considered alongside natural inclusions, fissures and available material so that the finished gemstone retains the most attractive possible balance between transparency, optical effect and usable yield.

This specimen is recorded as unheated and untreated, with no indications of heating or other treatment documented for the material. Its colour, internal structure and optical character are therefore presented in their naturally recorded state.

Moonstone belongs to the feldspar group and has a hardness of approximately 6 on the Mohs scale. Its characteristic adularescence is associated with fine internal structural layering that scatters light and produces the floating sheen for which Moonstone is known.

As natural rough material, this specimen may display inclusions, lamellar growth structures, internal fissures, cleavage-related features or surface irregularities. These characteristics form part of the geological history of the material and should be carefully assessed before cutting.

With its 8.608 ct weight, partly clear facet-quality material and subtle blue adularescence, this natural Moonstone rough offers attractive potential for individual lapidary work. Its elongated natural form provides the cutter with the opportunity to plan a finished gemstone around transparency, adularescence and optimal material retention.