- Stone9
- Reports2
-oval-brown-moonstone-15.1400-cts-k6309-1.jpg?d=200x200&v=20250602175655)
-oval-brown-moonstone-15.1400-cts-k6309-1.jpg?d=200x200&v=20250602175655)
-oval-brown-moonstone-15.1400-cts-k6309-lifestyleimage-1.jpg?d=200x200&v=20250707162454)






15.14 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)
This loose stone is available to ship now
Item ID: | K6309 |
|---|---|
Dimensions (MM): help | Length: 19.91 Width: 14.48 Height: 7.22 |
Weight: | 15.14 Ct. |
Color: help | Brown |
Color intensity: help | Intense |
Clarity: help | Very Very Slightly Included |
Shape: help | Oval |
Cut: | Cabochon |
Cutting style: | Cabochon |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $14 |
One beautiful translucent 15.14 carat oval shape brown moonstone is offered by The Natural Gemstone Company, with precise dimensions of 19.91 by 14.48 by 7.22 millimeters, presented as a classic cabochon cut. This piece has been evaluated with a clarity grade of very very slightly included, evaluated at eye level, which means the stone appears clean to the naked eye with only minute inclusions visible under magnification. The color intensity is described as intense, and the polish is excellent, contributing to a smooth, mirror like surface and an even face up appearance. There has been no enhancement to this moonstone, it is entirely natural and untreated, and its origin is Ceylon Sri Lanka, a locality renowned for producing fine moonstones with attractive body color and optical effects. The combination of significant carat weight and clean appearance makes this cabochon an impressive specimen for collectors, designers, and discerning buyers who prioritize natural, untreated gemstones.
From a gemological perspective, moonstone belongs to the feldspar group, and its most sought after optical phenomenon is adularescence, a soft sheen that appears to glide across the surface as the stone is moved under light. The cabochon cut is the optimal shape to display this adularescent effect, and in this example the cabochon dome has been proportioned and polished to maximize surface reflection and internal light play. Translucency in moonstone allows the adularescent shimmer to develop without being masked by excessive body color, and the intense brown hue in this specimen provides a warm and sophisticated background that highlights the sheen rather than overpowering it. The clarity grade very very slightly included indicates that inclusions are minimal and do not interfere with the optical phenomena or the overall visual appeal at typical viewing distances. The excellent polish reduces surface disruption, allowing for a clean, uninterrupted glide of light, which is particularly important for photography, display, and fine jewelry settings where the stone will be admired at close range.
For the educated buyer, several factors enhance the value of this particular moonstone beyond its immediate beauty. First, the weight of 15.14 carats places it in a size class that is relatively uncommon for high quality, clean moonstones, making it desirable for statement pieces such as an important ring center, a bold pendant, or a museum quality collection. Second, the origin, Ceylon Sri Lanka, has a long established reputation in the gem trade for producing moonstones with consistent color and optical character, and provenance from a respected locality supports long term resale and collector interest. Third, the fact that the stone is natural and unenhanced increases its appeal to connoisseurs who prefer untreated gems for ethical and value stability reasons. Finally, the combination of intense color intensity, very very slightly included clarity at eye level, and excellent polish means the stone balances visual impact with gemological quality, a balance that informed buyers recognize as a marker of true value.
Practical considerations for jewelers and end users include the cabochon dimensions, which allow for versatile design options, and the care requirements typical for feldspar gemstones. Moonstone generally has a Mohs hardness around six to six and a half, and while it is suitable for many types of jewelry, practical settings such as bezels or protective prongs are recommended for rings and bracelets to reduce risk of abrasion or impact. Cleaning should be performed with mild soap and warm water, with a soft brush, and harsh chemicals or ultrasonic cleaners should be avoided to preserve surface polish and internal structure. At The Natural Gemstone Company we stand behind the natural origin, untreated status, and descriptive grading of this brown moonstone, and we welcome inquiries from jewelers, collectors, and private buyers who would like additional high resolution images, independent laboratory testing, or guidance on setting options to best showcase this attractive cabochon.




-oval-brown-moonstone-15.1400-cts-k6309-1.jpg?d=750x750&s=ngc&v=20250602175655)
-oval-brown-moonstone-15.1400-cts-k6309-lifestyleimage-1.jpg?d=750x750&s=ngc&v=20250707162454)














