0.55 Ct. Greenish Blue Sapphire from Madagascar

This exquisite greenish blue marquise sapphire from Madagascar is a standout choice for collectors and fine jewelry connoisseurs, offered by The Natural Sapphire Company. Weighing 0.55 carat, the stone measures 7.41 by 3.55 by 2.90 millimeters, and it features a mixed brilliant cut that balances scintillation with depth of color. The gem is transparent, with a medium color intensity that brings out a fresh and versatile hue that reads both blue and green depending on lighting and setting. Clarity is graded very very slightly included evaluated at eye level, which means the stone offers exceptional purity to the unaided eye while retaining natural internal character under magnification. The polish is excellent, contributing to crisp facet junctions and lively reflections. Perhaps most important to discerning buyers is that this sapphire is untreated, with no enhancement, preserving its natural formation and original color. Origin is Madagascar, a source known for producing unique and highly collectible sapphires with compelling character and color variation.

When choosing a gemstone for daily wear or for an heirloom piece, hardness matters. Sapphire, composed of corundum, rates nine on the Mohs scale, which places it just below diamond at ten and well above many popular colored gemstones. Practically speaking, this means that a sapphire is substantially more resistant to scratches and surface wear than gems such as spinel which is eight on the Mohs scale, topaz which is eight, quartz which is seven, aquamarine which is around seven and a half to eight, and tanzanite which generally falls between six and seven. Emeralds may test around seven and a half to eight on the Mohs scale, but their abundant internal fissures and cleavage can make them less tough in service than a sapphire of similar hardness. Corundum does not exhibit perfect cleavage, and this contributes to its reputation for toughness and longevity. For customers who plan to wear their jewelry every day, a nine on the Mohs scale delivers confidence that the stone will maintain its polish and brilliance with normal use, and it stands up to the rigors of rings and bracelets more readily than many alternative gems.

Beyond technical durability, this marquise sapphire offers advantages in cut, color, and value compared with other market options. The mixed brilliant cut combines the depth and patterning of a faceted pavilion with the fire and return of a brilliant crown, producing strong sparkle without sacrificing the clarity and color saturation that collectors prize. Compared with step cuts that emphasize color but trade off brilliance, the mixed brilliant approach gives you livelier performance under ambient light, which suits the marquise shape particularly well. The marquise silhouette is naturally elongating when set on a finger, creating a flattering visual effect that appears larger than its carat weight might suggest. The medium intensity greenish blue hue is versatile, allowing the stone to complement both cool and warm metal settings, and the fact that it is untreated adds to its rarity and collectibility. Untreated sapphires from Madagascar compete strongly in the market with heat treated stones and with many lab grown alternatives because untreated material is increasingly scarce and sought after by buyers who value natural provenance and minimal intervention.

Choosing this sapphire from The Natural Sapphire Company is a choice for enduring beauty and responsible value. In a market where many sapphires are heat treated to improve color, and where lab grown stones can offer uniform background color at lower price points, a natural, unenhanced Madagascar sapphire of this clarity and cut occupies a special position for those who want authenticity and long term desirability. The combination of a nine on the Mohs scale, excellent polish, mixed brilliant cutting, and very very slightly included clarity evaluated at eye level ensures that this gem performs exceptionally as an everyday wear stone and retains appeal as an investment piece. For setting recommendations consider a secure prong or bezel setting to protect the points of the marquise and to highlight the stone elongation, or a simple solitaire to let the mixed brilliant cut do the work in dazzling the eye. Our team at The Natural Sapphire Company is available to discuss mounting options, customization, and certification details to ensure the gem you choose is matched to your vision and lifestyle.