7.84 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent brown moonstone, 7.84 carat, oval shape, dimensions 17.98 x 9.71 x 6.09 mm, cabochon cut, clarity grade very slightly included evaluated at eye level, vivid color intensity, excellent polish, no enhancement, origin Ceylon Sri Lanka. The overall color presents as a warm, mid to deep brown with uniform saturation across the oval outline, and the translucency allows a soft transmission of light that emphasizes the stone body. The cabochon surface is finished to a high gloss, producing strong surface reflection while retaining internal depth, and the stone has been evaluated under standard daylight and white LED illumination to confirm the absence of treatment or dye. At 7.84 carat and with the provided proportions, this moonstone occupies a comfortable size range for both statement and refined designs, and it is offered by The Natural Gemstone Company as a natural, untreated example of Sri Lankan feldspar.

The cutting and finishing choices for this piece demonstrate deliberate attention to optical performance and wearable proportions. The oval cabochon was cut with a moderately high dome, depth 6.09 mm, to balance surface brilliance and internal light play, with the dome profile oriented along the long axis to optimize the perceived color depth and any adularescent sheen the material exhibits. The cutter preserved an even outline and symmetry to minimize optical distortion when set, and the girdle area has been shaped to allow a secure bezel seat without unnecessary material removal. Polishing was completed through a progressive sequence of abrasives, ending with a cerium oxide or similar fine polish medium, resulting in the noted excellent polish and a smooth, reflective finish. The clarity assessment of very slightly included at eye level indicates only minor internal features that do not materially affect durability or visual appeal, and these internal structures are consistent with natural growth patterns in orthoclase type moonstones.

For practical use and setting recommendations, the 17.98 x 9.71 mm oval cabochon is ideally suited to bezel settings that follow the smooth outline and protect the stone edge, and it can also be effectively secured with low profile prongs combined with a partial bezel for added protection. Given the Mohs hardness of moonstone in the six to six and a half range, durable settings and daily wear considerations should include shank reinforcement and protective gallery work to reduce impact risk. Cleaning is best performed with warm soap and water and a soft brush, avoiding ultrasonic cleaners and harsh chemical exposure to preserve the surface polish and natural clarity. When planning a mounting, allow for a bezel channel depth of approximately six tenths to seven tenths of a millimeter beyond the stone thickness to create a proper seat, and consider warm metal tones to complement the vivid brown saturation. The Natural Gemstone Company can provide additional technical images and viewing angles for appraisal and design integration, and we welcome inquiries regarding matching pairs, custom cutting preferences, or certification options for this fine Ceylon moonstone.