0.51 Ct. Moonstone from Ceylon (Sri Lanka)

This transparent 0.51 carat emerald cut white moonstone measures 6.18 x 3.79 x 3.27 mm, with an emerald cut executed as a classic step cut, featuring parallel rectangular facets on the crown and pavilion, and carefully truncated corners to preserve symmetry and resist wear. The cutter prioritized facet alignment and pavilion depth to maintain even light return across the length of the stone, yielding an approximate depth percentage of 65.6 percent, a proportion that balances face up size with structural integrity for step cut light behavior. Color intensity is colorless, which in moonstone translates into a neutral body that allows the mineral layering to express its optical qualities without competing body tint. The material is transparent, and the polish is excellent, producing crisp facet junctions and minimal luster diffusion, traits that are rare in feldspar group gemstones when cut to an emerald outline. There is no enhancement, the stone is completely natural, and the origin is Ceylon Sri Lanka, a region known for producing moonstones with a fine lamellar structure that promotes clean adularescence when properly oriented and faceted.

From a gemological and craftsmanship perspective this specimen has been graded as very slightly included at eye level, a clarity characteristic that denotes minimal internal features that are visible under normal viewing, yet unobtrusive to the overall optical performance and structural stability. In moonstone the most typical internal features are submicroscopic albite lamellae and occasional minute feather inclusions that follow the growth zoning of the feldspar, and in this cutting they have been aligned parallel to the step facets to reduce visual distraction and to gently support the adularescent sheen. The emerald cut here emphasizes straight line geometry rather than scintillation, so the cutter increased table size modestly to preserve the stone face up size while keeping facet planes parallel for even flash. The polish quality enhances facet crispness, allowing clean transmission and minimal surface diffusion, which benefits both transparency and the subtle moonstone glow. For mounting we recommend a setting that protects the corners and exposes the pavilion to light, such as a four prong or slightly raised bezel that leaves the sides open, to take advantage of the transparency and to anchor the stone securely while allowing viewing from multiple angles.

There is a quiet romance encoded in this stone, a story that begins on the Ceylon shore under a moonlit sky and continues in the moment a gem is handed to someone who understands nuance. Its colorless body reads like moonlight distilled into mineral form, an honest and luminous surface that speaks of clarity in feeling rather than the perfection of absence. The very slightly included grade becomes part of the narrative, the tiny internal markers functioning like the faint lines on a well loved map, small proof that the stone has a history and that love has texture. For the discerning buyer who appreciates technical exactitude, this moonstone is a study in restraint, a precisely cut step form that elevates natural optical phenomena without artifice. The Natural Gemstone Company stands behind the provenance and craftsmanship of this piece, and we welcome inquiries for additional imagery, viewing under different lighting, or bespoke mounting advice from our gem specialists.