15.18 Ct. Blue Cabochon Sapphire from Ceylon (Sri Lanka)

One beautiful semi translucent C.Dunaigre certified Blue 15.18 carat oval shape blue sapphire is offered by The Natural Sapphire Company, with exact dimensions of 14.79 by 11.81 by 8.11 mm. This gem is fashioned as a cabochon cut, presenting a smooth, domed face that emphasizes its intense blue color intensity and a silky surface with excellent polish. The stone is semi translucent, allowing a subtle depth and inner glow that plays gently with light while maintaining a rich, saturated blue that reads clearly as Blue on the lab color classification. Clarity is graded very slightly included evaluated at eye level, which is typical and expected for a large natural cabochon, and these small inclusions do not detract from the overall presence or beauty of the piece. Importantly, there has been no enhancement to this sapphire, and its origin is Ceylon Sri Lanka, certified by C.Dunaigre for authenticity and natural origin.

As a sales specialist at The Natural Sapphire Company I can tell you that an untreated 15.18 carat Ceylon cabochon like this is a rare find and a wonderful choice for a striking statement ring or an elegant pendant where the depth of color can be admired face up. The smooth cabochon profile makes this sapphire comfortable to wear and resilient to everyday knocks, while the intense blue will complement both warm and cool metal settings. Because this stone is certified and untreated, it holds strong value and collectability, and the certificate from C.Dunaigre provides clear documentation for appraisal and insurance. If you prefer a bespoke setting, we can provide design suggestions to showcase the oval proportions of 14.79 by 11.81 by 8.11 mm and preserve the cabochon silhouette, or we can advise on mounting styles that protect the domed surface while highlighting its excellent polish. Please contact The Natural Sapphire Company for additional photographs, video, and bespoke setting options, and our team will guide you through care recommendations and secure shipping to ensure this exceptional Ceylon sapphire arrives safely and ready to be enjoyed.