10.29 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One beautiful translucent white moonstone weighing 10.29 carats offers an exceptional combination of size, color, and clarity that sets it apart from typical market examples. This oval shape gem measures 15.31 by 10.70 by 8.53 millimeters, and its classic cabochon cut maximizes the stone full face and adularescent sheen. Evaluated at eye level the clarity is very slightly included, which means the stone reads clean to the naked eye while retaining the natural character that connoisseurs appreciate. The color intensity is colorless, providing a pure, cool backdrop for the moonlight like shimmer that moonstone lovers seek. The polish is excellent, producing a smooth, reflective dome that enhances wearability and complements a variety of metal settings. Importantly this moonstone has no enhancement, a fact that preserves its natural integrity from origin to finished stone.

When comparing this moonstone to other options on the market the differences become clear. Many commercial moonstones are small cabochons under four carats or larger stones with weaker adularescence due to cloudy body color or heavy inclusions. Some sellers offer heat treated or oil filled examples to mask imperfections, while inexpensive alternatives rely on glass simulants or synthetic materials that do not react or age like natural feldspar. This specimen is a rare larger size for a natural white moonstone, and coming from Ceylon Sri Lanka it benefits from a geographic reputation for fine quality feldspar deposits. The colorless intensity is particularly valuable because it allows the internal sheen to appear without competing body hue, while the very slightly included clarity keeps the stone feeling authentic rather than manufactured. The combination of size, cut, polish, and untreated status places this moonstone above mass market pieces and closer to collector quality.

Value wise this cabochon is an intelligent choice for designers and private buyers who know the market. Compared to white opal the moonstone offers greater toughness and a more consistent sheen under different lighting conditions, while white sapphire or topaz lack the living lunar shimmer that defines moonstone appeal. Against common milky quartz or glass imitations this stone shows depth of light and a layered internal reflectance that those materials cannot replicate. For jewelry applications the dimensions and weight make it ideal as a statement center in a ring or pendant, where the cabochon dome will catch movement and light. Because moonstone has a hardness around six to six point five on the Mohs scale it requires mindful setting and occasional care, but the advantage is an organic texture and warmth that higher hardness crystals do not offer. Paired with protective bezel settings or lower prong tensions and occasional gentle cleaning, this gem will retain its aesthetic impact for many years.

At The Natural Gemstone Company we prioritize stones that combine beauty with honest disclosure, and this moonstone exemplifies that approach. Our gemologists have evaluated the piece and confirm its origin as Ceylon, Sri Lanka, its lack of enhancement, and its assessed clarity and polish. For clients choosing between similar stones the practical distinctions are clear, and our team can help match this moonstone to the right setting or advise on complementary accent stones. Whether you are a collector seeking a rare larger cabochon, a jeweler designing a signature piece, or an individual desiring an heirloom quality stone, this moonstone delivers a superior balance of natural character, visual appeal, and resale value compared to treated material and synthetic lookalikes. Contact us at The Natural Gemstone Company to discuss provenance, setting recommendations, or to request additional images and viewing options, and let us help you secure a gem that stands apart in quality and authenticity.