4.06 Ct. Bluish Green Sapphire from Madagascar

This exceptional bluish green sapphire is a transparent, emerald cut gem weighing 4.06 carats, with precise dimensions of 8.82 by 7.40 by 6.29 millimeters, presented to you by The Natural Sapphire Company. The stone displays an intense color intensity and an excellent polish, reflecting careful cutting and finishing that maximize its visual appeal. Graded as slightly included when evaluated at eye level, it retains exceptional transparency and a lively face up presence, making it ideal for a variety of fine jewelry settings. The gem has been heat treated, a well established enhancement that improves color saturation and overall clarity, and it originates from Madagascar, a source renowned for producing richly colored and characterful sapphires. For the knowledgeable buyer who values accurate grading and provenance, these attributes are immediately relevant, because weight, cut, color, clarity, polish, treatment, and origin collectively determine market value and long term desirability.

Color is the primary determinant of value for this sapphire, and the bluish green hue here is particularly noteworthy because it occupies a sophisticated position between classic blue and more verdant green sapphires, offering versatility and unique personality. The intense color intensity gives the gem a strong and appealing face up appearance, while the emerald cut provides a broad table that showcases the depth and uniformity of color, and that highlights any subtle color zoning or pleochroic effects characteristic of corundum crystals. Madagascar has become an important modern source for such material, contributing both alluvial and primary deposit stones that often show lively tones and good crystal quality, which collectors and connoisseurs prize. The combination of an uncommon, saturated bluish green tone and a 4.06 carat weight places this stone in a category that attracts buyers seeking statement pieces that remain wearable and refined.

Clarity and finish are equally important to an educated buyer, and this example benefits from transparent material and an excellent polish that together enhance brilliance and light return. Slightly included as evaluated at eye level means that minor internal characteristics can be detected without magnification in certain lighting or angles, but they do not materially detract from the gem’s overall beauty or structural integrity. The emerald cut, with its step facets and open table, tends to emphasize clarity and color rather than maximizing sparkle, so selecting a clean, well proportioned cut like this one is a deliberate choice to display color depth and internal character. Heat treatment in sapphires is an industry standard, carefully applied to improve color uniformity and stability, and it is considered stable under normal wear. At The Natural Sapphire Company, we are transparent about enhancements and can provide additional testing or independent gem reports on request, because provenance and treatment disclosure are essential for preserving long term value and consumer confidence.

Durability and practical considerations complete the assessment, and sapphires rank nine on the Mohs scale of mineral hardness, making them second only to diamond at ten in terms of scratch resistance among common gem materials. This hard, durable nature means the sapphire will resist everyday abrasion far better than gems such as topaz which rates eight, quartz which rates seven, and other softer materials that are more prone to surface damage. For setting recommendations that balance security and aesthetic appeal, a prong setting with reinforced corners or a protective bezel are both excellent choices for an emerald cut, because they safeguard the stone while allowing the broad table to remain visible. Routine care is straightforward, use warm soapy water and a soft brush to clean, avoid harsh chemicals and extreme heat, and have the mounting checked periodically by a professional jeweler to ensure prongs remain secure. While heat treated sapphires are generally stable, if you intend to subject the piece to ultrasonic or steam cleaning, consult with our gem specialists at The Natural Sapphire Company so we can confirm suitability for your specific stone and setting. This gem is an attractive investment for collectors and an elegant choice for a signature ring or pendant, offering a rare combination of size, color, and quality that will remain wearable and admired for generations.