1.73 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

From the mountain veins of Ceylon Sri Lanka to the light catching surface you see here, this blue flash moonstone has traveled a path sculpted by earth and skilled hands, a story we tell with pride at The Natural Gemstone Company. Formed over millions of years as feldspar layers shifted and interleaved, this translucent moonstone captures the geological patience of the island, and brings forward a soft, spectral blue adularescence that seems to move beneath its surface. This particular gem weighs 1.73 carats, and is shaped into a graceful pear form with dimensions of 8.76 by 6.42 by 4.28 mm. It is cut as a cabochon to maximize the depth and movement of the blue flash that makes it special. Clarity is graded as very very slightly included evaluated at eye level, giving it a natural character without distracting from its luminous body. Color intensity is faint which allows light to travel and produce that ethereal glow, and the polish is excellent, a final touch that brings forward the gem to its wearable, visible best. No enhancement has been applied, and the stone carries its natural integrity from mine to market. We also record the opal type as White Opal in our cataloging system to reflect the moonstone’s milky translucent base and soft luminous quality.

The cutting and finishing of this moonstone is a chapter in its journey that requires sensitivity rather than force, a careful dialogue between cutter and material. At our workshops we select rough pieces with the best adularescence and orient the layers so that the pear shape and the cabochon dome emphasize a centered blue flash. The cabochon cut is traditional for moonstone, because facets would break the light flow, while the dome invites the adularescence to glide and shift as it meets the viewer. The choice of a pear silhouette gives designers a versatile shape that reads elegantly in rings, pendants, and drop earrings, and it also echoes the natural teardrop of dew and moonlit water. Each polish pass is performed by artisans who read the stone, stopping when the surface attains a mirror like sheen without over thinning the dome. The result is a gem that feels alive when held, and that sits comfortably on the finger as demonstrated in our photographs. When you choose this gemstone through The Natural Gemstone Company you are receiving not only a rare physical object, but the accumulated skill of miners, cutters, and polishers who have treated the material with respect.

Visually the gem offers a gentle strong presence that works with modern minimalism and with classic, softer forms. Its translucency gives it an internal depth, and the blue flash is at once subtle and arresting, a phenomenon that is sometimes compared to the luminous sheen of the finest white opal. For reference, the catalog entry lists opal type White Opal which communicates the moonstone’s milky, opalescent base alongside its distinctive blue sheen. Against a warm skin tone the stone brings a cool, moonlit window of light, and set in a bezel or a low profile prong it becomes a wearable talisman that moves with the wearer, reflecting light differently across the day. The very very slightly included clarity is a sign of natural origin, with minute internal features that do not interrupt the visual experience at normal viewing distances, and the faint body color allows the blue adularescence to read cleanly. In practice this makes the stone versatile for design, pairing especially well with rose gold for a romantic look, and with sterling silver for a crisp, contemporary expression. The pear cabochon form translates easily into custom work, and it will complement both solitary settings and layered designs.

From an investment perspective this moonstone presents several meaningful attributes that support potential appreciation in value over time. First, provenance matters, and Sri Lanka or Ceylon sourced moonstone is highly regarded for its quality, which places this specimen in a desirable category for collectors and connoisseurs. Second, the stone is untreated and unenhanced, a status that is increasingly prized in a market where natural, well documented gemstones command premiums. Third, while moonstone is not as widely traded as ruby or sapphire, demand for high quality, blue flash specimens has been rising among designers who seek unique, ethically sourced elements, and among collectors who value scarcity and provenance. The combination of a strong adularescent effect, an uncommon pear cabochon form at a wearable 1.73 carats, and the documented origin with excellent polish gives this gem both immediate aesthetic value and the structural qualities that collectors consider when evaluating long term appreciation. At The Natural Gemstone Company we recommend proper documentation and conservative care to preserve the stone’s surface and optical performance, and we can assist with certification and secure storage options. As tastes continue to favor individuality and artisanal provenance, a natural, untreated moonstone such as this one is well positioned to grow in both desirability and value for those who buy thoughtfully and hold with care.