7.82 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This peach moonstone is a translucent, 7.82 carat oval cabochon measuring 16.01 x 12.15 x 5.49 millimeters, sourced from Ceylon, and presented by The Natural Gemstone Company. The cabochon cut has been executed to emphasize adularescence, the silky schiller that defines fine moonstone, through careful control of dome height and surface curvature. The clarity is graded as very very slightly included at eye level, indicating only minimal internal features that do not interrupt the play of light. Color intensity is medium, giving a balanced peach hue that reads warm when set in yellow or rose metals, and subtly ethereal when paired with white metals. The polish is excellent, producing a uniform, glass like surface that maximizes light return and contributes to a soft, continuous sheen across the top of the dome. No enhancements have been applied, so the stone presents its natural crystalline structure and optical phenomena, and its provenance from Sri Lanka is documented, supporting both desirability and traceability.

From a design and setting perspective, this oval cabochon is highly versatile. The elongated oval silhouette and moderate depth allow for multiple orientation choices, which is important because the direction of the adularescent flash is controlled by the alignment of the stone relative to light. For rings, a low profile bezel or collet setting provides secure protection and frames the dome, while allowing the top surface to remain unobstructed. For pendants, an open back or gallery ventilated setting permits transmitted light to enhance translucency, creating a more luminous appearance in varied lighting conditions. For earrings, matched pairs are achievable with coordinated cutting and grade matching, and the oval shape adapts well to both simple drop styles and halo constructions using small accent stones. For brooches, cufflinks, and statement pendants, the cabochon can be mounted in a raised collet that showcases the full dome and allows movement of the schiller as the piece is worn.

Technical considerations for the setting and fabrication affect longevity and optical performance. Moonstone is a feldspar with a Mohs hardness around six to six and a half, and micro fracture planes can be present along crystal lamellae, so mechanical protection at bezel edges and prong tips is crucial to avoid chipping. We recommend a full bezel with a rounded inner lip when the piece is intended for daily wear, as this distributes force across the perimeter of the stone. For higher visible surface area, a tapered bezel with reinforced shoulders provides security while minimizing metal coverage. Where prong settings are chosen for aesthetic reasons, use smooth, well burnished prong tips and secure seating that engages enough stone depth to resist lateral movement. Adhesives are not a substitute for proper mechanical seating, and skilled bench work includes accurate seat cutting, light relief on the underside to prevent point loading, and polishing of the bezel or collet to preserve the excellent polish of the cabochon. The 5.49 millimeter depth balances presence and wearability, and allows for a range of shank thicknesses and gallery designs without excessive excavation of mounting metal.

Customization options extend into metal choice, complementary gemstones, and finishing techniques, enabling the stone to be incorporated into bespoke designs tailored to personal taste and function. For a warm, integrated look, 18 karat rose gold emphasizes the peach tone and creates a soft vintage aesthetic. For a classic contrast, platinum or 18 karat white gold provides a crisp frame that draws the eye to the adularescent flash. Yellow gold offers a traditional setting that enhances the gem warmth, and sterling silver can provide an artisanal look while maintaining a lighter price point. Accent stones such as melee diamonds, champagne sapphires, or soft pink spinels can be set in halo or shoulder configurations to increase brilliance around the cabochon, without competing with the stone s intrinsic shimmer. For clients who desire a modern interpretation, a bezel with polished interior and matte exterior finishes creates visual contrast, whereas a high polish all over maximizes reflectivity and complements the stone s surface sheen. We offer CAD renderings and wax prototypes for approval, and can advise on exact metal thicknesses, bezel proportions, and prong placements that will respect the gem s dimensions, while achieving the desired aesthetic.

We at The Natural Gemstone Company provide full bespoke services for this peach moonstone, from initial design consultation through to final bench finishing, ensuring that optical orientation, mechanical security, and stylistic goals are all reconciled. We document the gem s measurements, weight, clarity assessment, and origin, and can produce detailed photographs and a handling report for your review. For care, we advise avoiding ultrasonic cleaning, steam, and sudden temperature changes, using instead a soft cloth and mild soap solution for routine cleaning, and removing set jewelry during heavy physical activity to reduce impact risk. If you prefer a specific presentation, options include an open back pendant to increase translucency, a protective low bezel for everyday rings, a halo to enhance visual size, or a pair matched with a complementary stone for earrings. Our bench team will specify the seating angle and bezel lip radius to preserve the cabochon s polish and adularescent properties, and we welcome collaboration on selecting side stones and metal alloys to achieve the intended color balance and wear characteristics. Contact us to discuss a custom design, and we will provide timelines and cost estimates based on the chosen setting, metal content, and additional gemstones.