5.74 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This translucent 5.74 carat oval blue flash moonstone measures 12.14 x 9.48 x 7.44 mm, it is expertly fashioned as a cabochon to maximize adularescence, the clarity grade is very slightly included as evaluated at eye level, the overall color intensity is light, and the polish has been rated excellent. The specimen is untreated with no enhancement and its origin is Ceylon Sri Lanka, provenance that is widely respected among connoisseurs for producing some of the purest blue flash moonstones in the trade. The blue sheen is clean and well centered within the dome of the cabochon, producing a soft lunar shimmer that moves with light. In practical terms the very slight inclusions are natural and unobtrusive, they do not interrupt the blue flash and in some lighting help to create depth, making this a desirable choice for both collectors and a refined jewelry commission.

When comparing hue and tone to material from other famous locations, Sri Lankan blue flash moonstones typically display a cooler, more saturated blue adularescence with a relatively neutral to light body tone, this differs from Indian moonstones which more commonly exhibit a warmer, creamier to gray body tone with a less saturated blue flash. Madagascar material often shows warmer yellow to greenish flashes and sometimes a more translucent to opaque body tone, while spectrolite from Finland and select Labradorite specimens display a broader spectrum of iridescent colors and a generally darker body tone that emphasizes multicolored flashes rather than a single pure blue sheen. For the educated buyer the value proposition of this piece from The Natural Gemstone Company is clear, it combines an authentic Sri Lankan blue flash, an ideal cabochon shape, a collectible size at 5.74 carat, and no treatments, all backed by careful grading of clarity, color intensity, and polish. This moonstone is particularly well suited to a bezel or low prong setting that protects the dome and showcases the adularescence, it will appeal to buyers who prioritize natural provenance, optical quality, and the classic cool blue tone associated with premium Ceylon moonstones.