7.70 Ct. Bi Color Cabochon Sapphire from Ceylon (Sri Lanka)

This is a rare and romantic natural heart shaped bi color sapphire offered by The Natural Sapphire Company, a 7.70 carat gem with generous dimensions of 12.00 x 13.39 x 5.02 mm. The stone is cut as a cabochon, and it displays a translucent body that allows soft internal light to travel through the material, revealing a gentle interplay of hues. One side of the heart shows a deep blue, while the other side carries a pale, cooling tone, creating a striking contrast that is simultaneously bold and subtle. The color intensity is graded as medium, which makes the sapphire versatile enough to work beautifully in both contemporary and vintage inspired settings. Clarity is graded as included, evaluated at eye level, which means natural inclusions are visible but they contribute to the gem character and confirm its natural origin. The polish on this cabochon is excellent, yielding a smooth, lustrous surface that accentuates the heart silhouette and invites touch. Importantly this sapphire has undergone no enhancement, it is completely natural, and its origin is Ceylon, Sri Lanka, a source renowned for producing some of the world most beloved sapphires.

Visually this bi color heart has an immediately charming personality, the two tones meeting in a soft boundary that makes each viewing subtly different depending on light and angle. Because it is a cabochon, the gem presents a soft, almost satiny glow rather than the facet sparkle of a faceted stone, and this gives it an intimate, organic appeal. The included clarity grade means you will see natural growth features and feathery inclusions inside the gem, and those internal marks are not faults so much as fingerprints of formation, proof of the sapphire natural history. For jewelry use the heart shape and flat cabochon profile make this sapphire ideal for a pendant where the color division can be centered for a symmetrical look, or set slightly off center in a ring or brooch to emphasize the bi color effect. Because the piece is nearly thirteen millimeters at its widest point, it has a presence on the hand or at the throat, and because of the excellent polish the surface will reflect light with a gentle, inviting sheen. Designers often orient bi color stones so that the color split complements the wearer skin tone, and this heart will sit beautifully in warm yellow metal to bring contrast to the blue, or in cool white metal to underscore the pale tone.

At The Natural Sapphire Company our gemology team is available to help you evaluate how this natural, untreated Ceylon sapphire will work in your bespoke design, and we can provide additional photographs or video to show the cabochon translucency and the internal structure up close. Care for a cabochon sapphire is simple, warm soapy water and a soft brush for occasional cleaning, avoiding harsh chemicals and extreme temperature changes to preserve the untreated state and polish. If you prefer a protective setting for everyday wear, a bezel or partial bezel setting will secure the stone and highlight the heart outline while protecting the edges of the cabochon. This heart shaped bi color sapphire is a beautiful choice for an engagement piece, a sentimental gift, or a distinctive collector specimen, offering the rarity of an untreated bi color crystal, the provenance of Ceylon, Sri Lanka, and the craftsmanship of a fine cabochon cut with excellent polish. Please contact The Natural Sapphire Company for more details, pricing, or to request custom setting options, because a gem with such personality deserves a setting that tells its story.