21.23 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

I am pleased to present a singular and elegant gemstone that exemplifies the natural beauty and refined quality we uphold at The Natural Gemstone Company, one translucent grey moonstone weighing 21.23 carats. This gem is cut in a classic oval shape, with dimensions of 18.13 by 12.63 by 12.91 millimeters, and it has been finished as a cabochon to showcase the stone core and its internal light phenomena. The clarity has been graded as very slightly included, evaluated at eye level, which means that minor internal characteristics are present but do not detract from the gem sight by sight, rather they contribute to the stone character and uniqueness. Color intensity is medium and the overall tone leans toward a soft, sophisticated grey that makes the adularescence and surface glow feel both subtle and refined. The polish is excellent, creating a smooth, reflective dome that enhances visual depth and tactile luxury. There has been no enhancement performed on this moonstone, preserving its integrity as a natural gem from Ceylon, Sri Lanka, a locality renowned for producing stones with pure color and delicate sheen.

Visually the gem offers an ethereal presence that changes gently with movement and light, the hallmark adularescence appears as a floating shimmer that seems to glide beneath the surface, and on this particular grey background the effect reads as silvery and cool, with hints of warmer tones that reveal themselves at certain angles. Its translucent body allows light to pass and scatter softly, making the stone glow from within during daylight, and under evening illumination the same surface highlights become small, luminous accents. The cabochon shape was chosen to maximize these optical traits, the rounded dome allowing the play of light to sweep across the surface without interruption, while the oval outline provides a balanced silhouette that translates beautifully into design. In practical terms the scale and weight are ideal for a statement ring center, a distinguished pendant, or a standout pair of earrings crafted around a matched pair, though this single gem is especially suited to a bespoke piece designed to celebrate its size and singular color harmony.

From a gemological and design perspective this moonstone represents an excellent combination of natural characteristics and artisan finishing. The very slightly included clarity means that the gem reads clean to most observers, while internal features add a fingerprint that is unique to this specimen, and because no treatments or enhancements have been applied, the stone offers authenticity that many collectors and designers prize. The excellent polish is evidence of careful cutting and finishing, with smooth curves and a gleaming surface that makes setting easier and elevates the overall appearance. Origin from Ceylon, Sri Lanka, adds provenance and context, as the island has a long history of producing feldspar family gems with refined color and good adularescence, and knowing the origin helps jewelers and buyers understand the expected interaction of light with the stone. The cabochon cut is the most appropriate style for moonstone, it preserves the soft shimmer, it protects the stone from sharp edges, and it gives lapidaries and jewelers a predictable canvas for mounting in metals and settings that will complement the grey tone and luminous quality.

For customers considering this moonstone, I recommend imagining the gem as the central element of a bespoke design, it performs beautifully in a minimalist bezel that frames the oval and allows the dome to breathe, it also pairs well with a fine halo of small accent stones that can add contrast and raise the perceived brightness without overpowering the moonstone subtlety. For rings, a wider band with a low to moderate profile will protect the stone and allow comfortable wear, for pendants a secure setting that cradles the cabochon will display the adularescence with every turn of the wearer, and for earrings matching or pairing with complementary tones will create an elegant set. Care is straightforward, treat the moonstone gently, avoid exposure to harsh chemicals and sustained sharp impacts, and clean with warm soapy water and a soft cloth to preserve the excellent polish and the natural sheen. If you would like additional views, measurements, or recommendations for mounting and design, please contact me at The Natural Gemstone Company and I will be glad to assist with detailed advice, certification options, and bespoke commissioning to ensure this 21.23 carat grey moonstone finds the perfect setting and enjoys a long life as a cherished piece of wearable art.