6.31 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This translucent white moonstone weighs 6.31 carats, and it is fashioned into an elegant oval shape with dimensions of 12.62 x 9.06 x 7.40 mm, presented as a classic cabochon cut. The cabochon profile is the traditional and ideal presentation for moonstone, it emphasizes the internal optical phenomenon known as adularescence, and it provides a broad, luminous surface that interacts with light to reveal a soft blue white sheen that appears to float beneath the surface. The gem displays a near colorless intensity which allows the adularescent effect to read clearly without competing body color, and the excellent polish enhances surface luster and reflection, making the stone read as fresh and lively in hand and in finished jewelry. The physical dimensions, combined with a substantial 6.31 carat weight, make this piece suitable for a central setting in a pendant or as a prominent accent in a bespoke ring or brooch, giving designers and collectors a versatile and visually striking option.

From a gemological and grading perspective this moonstone was evaluated at eye level and given a clarity grade of very slightly included, meaning that inclusions are present but minor, and they do not materially detract from the overall visual appeal or from the adularescent display. Because moonstones are typically cut as cabochons to showcase adularescence, the way inclusions interact with light can be beneficial, they often soften and enrich the glow rather than appearing as distracting flaws, and in this specimen the internal features appear harmonious with the stone's luminous character. The lack of any enhancement is an important attribute for educated buyers, because untreated material is considered more desirable and collectible in the natural gem market. The excellent polish indicates careful lapidary work, which is an essential factor for the presentation of adularescence and for the durability of the stone in mounted jewelry.

The origin of this moonstone is Ceylon, known today as Sri Lanka, a provenance with a long standing reputation for producing high quality feldspar specimens, particularly moonstone with strong adularescence and clean body tones. Ceylon moonstones are historically respected by connoisseurs and are often sought after in the secondary market, and origin can be a meaningful factor for buyers who value documented provenance and geological context. For an educated buyer comparing materials, this stone combines desirable attributes, including transparent to translucent body, near colorless tone, clean adularescent effect, respectable size at over six carats, and a confirmed absence of treatments. These combined qualities place it above the average commercial grade white moonstone, offering both aesthetic pleasure and potential long term value retention within collections, particularly when set and cared for appropriately.

The Natural Gemstone Company is pleased to present this moonstone as part of our curated inventory, and we provide full disclosure on specifications, including weight, dimensions, cut style, clarity observations, color intensity, polish condition, enhancement status, and origin. For practical considerations related to wear and longevity, moonstone registers around six to six and a half on the Mohs scale, therefore protective settings such as bezels are recommended for rings or pieces likely to encounter daily wear, and cleaning should be done with warm soapy water and a soft brush, avoiding harsh chemicals, steam, or ultrasonic cleaners. We can provide additional high resolution images, magnified views, and provenance documentation upon request to support informed purchasing decisions. For collectors, designers, and clients seeking a refined natural example of Sri Lankan moonstone, this 6.31 carat cabochon offers an excellent balance of optical character, untreated natural status, and lapidary quality, reflecting the standards of The Natural Gemstone Company.