3.97 Ct. Bluish Green Sapphire from Tanzania

Across centuries sapphires have been the gemstones of choice for those who seek to express enduring values and a sense of legacy, and this round bluish green sapphire carries that same timeless presence. Sapphires have adorned crowns, reliquaries, and signet rings, and their association with truth, wisdom, and fidelity has echoed through history. This particular stone, originating from the rich deposits of Tanzania, evokes that noble lineage, while offering a modern versatility that bridges old world charm and contemporary taste. Its bluish green color sits at the intersection of tradition and individuality, a hue that reads as classic from a distance and reveals complex depth as light moves across its surface. When set into a bespoke piece, this sapphire will not serve only as an ornament, it will become the center of a story, one that can be handed down through generations and appreciated for both its beauty and its provenance.

The gem itself is a carefully considered example of cut, clarity, and color working together. Weighing 3.97 carats, the round shape presents a familiar and beloved silhouette that flatters a wide range of designs, and its dimensions of 8.48 x 8.46 x 6.39 mm make it an ideal candidate for a prominent center stone. The mixed brilliant cut combines the scintillating fire of a brilliant style with a pavilion design that maximizes return of light, producing a lively interplay of flashes and depth. At the eye level the clarity registers as very slightly included, which means the stone is transparent and eye clean for most observers, while retaining natural character that affirms its authenticity. The color intensity is described as intense, allowing the blue and green tones to coexist in a harmonious balance that reads differently under varied lighting conditions. The polish is excellent, ensuring crisp facet junctions and a surface that enhances sparkle. The stone has been heat treated, a widely accepted enhancement in the trade that stabilizes and intensifies color, and this treatment has been disclosed in full by The Natural Sapphire Company.

For custom jewelry this sapphire is especially well suited because of its size and shape, and the dimensions provide both visual impact and practical benefits for setting. A near eight and a half millimeter round is large enough to command attention as a solitaire engagement stone, yet its proportions allow it to sit comfortably on a range of finger sizes without overwhelming the hand. The 6.39 millimeter depth supplies enough pavilion to secure prongs or a bezel with confidence, while the mixed brilliant cut ensures lively return of light even when set under a protective halo or within a closed back design. Designers will find that a classic four or six prong setting will highlight the stone s round geometry and allow maximum light to play through the crown, whereas a fine milgrain bezel will offer a vintage sentiment and added protection for daily wear. Surrounding accent diamonds will create contrast and amplify the sapphire s intense color, while warm yellow gold or cool platinum will each bring out different undertones in the bluish green body color, giving bespoke designers a palette of creative options. For those who favor pendants or cocktail rings, the stone s weight and surface area provide a substantial presence, and its round profile makes it simple to integrate into custom mounting techniques that emphasize longevity and comfort.

Selecting this sapphire for a custom commission with The Natural Sapphire Company means choosing a gem with both character and enduring design potential. Our craftsmen and gem specialists can advise on settings that honor the stone s history while crafting a piece that will be worn and treasured every day. We recommend considering traditional motifs such as halo and cathedral settings that enhance the sapphire s face up diameter and status as a focal point, or more restrained bezel and tension styles for those who prefer a modern silhouette with enhanced security. Care and maintenance are straightforward, heat treated sapphires respond well to routine cleaning with mild warm soapy water and a soft brush, and they retain their polish and color over a lifetime with sensible wear. When you commission a custom piece you will receive full disclosure of the gem s origin and treatment, along with guidance on metal choice, setting style, and the practicalities of sizing and finishing, ensuring the final piece is as lasting as the heritage it celebrates. Contact The Natural Sapphire Company to begin a design conversation, and allow this Tanzanian round sapphire to become the centerpiece of an heirloom that reflects personal taste, historic resonance, and a commitment to craftsmanship.