1.51 Ct. Purple Sapphire from Madagascar

This exquisite transparent purple sapphire offered by The Natural Sapphire Company is a refined example of natural corundum, weighing 1.51 carat, and cut into a classic oval shape with dimensions of 7.70 by 5.95 by 3.87 millimeters. The cutting style is faceted, utilizing a mixed brilliant cut to combine the scintillation of brilliant facets with the depth and color retention of step facets. The clarity grade is very slightly included, evaluated at eye level, which indicates that the inclusions are minor and do not detract from the gem when viewed without magnification. The stone displays intense color intensity and an excellent polish, and crucially, it has received no enhancement, making it a genuinely natural and untreated sapphire from Madagascar. These attributes together create a gem that is both collectable and ready for high quality jewelry work.

The geometry of the faceting has been executed to maximize light performance, the mixed brilliant cut places small, precisely angled facets across the crown and pavilion to create multiple mirror planes that capture and return light as lively flashes of brilliance and scintillation. The oval proportions, with a length to width ratio of approximately 1.30 to 1.00, present an elegant silhouette that flatters most settings and fingers, while the measured pavilion depth yields a total depth of about 57 percent of the average diameter, which is a well balanced proportion for maintaining both face up size and internal light return. In practical terms, the crown facets break incoming light into prismatic flashes and the pavilion facets reflect that light back through the table in a way that emphasizes the intense purple hue, creating an interplay of flash and color that an educated buyer will recognize as superior cutting. The excellent polish ensures that facet junctions are clean and reflective, minimizing light leakage and allowing the stone to display its full optical potential under varied lighting conditions.

From a gemological standpoint this sapphire carries several value enhancing characteristics that speak directly to discerning buyers. As corundum, it rates a nine on the Mohs hardness scale, providing exceptional durability for everyday wear in engagement rings and other high use pieces. The very slightly included clarity grade means the stone maintains strong transparency and brilliance, while its untreated status adds a premium because natural color stability is preserved and provenance is intact. Madagascar is a respected source of fine sapphires, known for yielding stones with vivid saturation and attractive tones, and a documented origin adds an additional layer of provenance that informs both aesthetic and market value. For collectors and investors, an untreated, well cut sapphire with intense color, good proportions, and excellent polish represents a rare convergence of natural properties and human craftsmanship.

In terms of practical use and care this 1.51 carat oval sapphire is exceptionally versatile, it works beautifully as a solitaire in either classic prong settings that allow maximum light entry, or in more secure bezel settings when extra protection is desired, and a halo of smaller diamonds can amplify the visual impact without overwhelming the purple tone. Gentle cleaning with warm water, mild detergent, and a soft brush will preserve surface polish, while professional cleaning and inspection are recommended periodically to check for any vulnerability around the setting. Ultrasonic and steam cleaning are generally acceptable for clean, intact sapphires, however care should be taken if inclusions are present near facet junctions, and consulting a jeweler prior to these methods is advisable. At The Natural Sapphire Company we provide full information on origin, treatment status, and cut proportions to support informed purchasing, and we are available to discuss custom settings and to provide certification that documents the gemological characteristics that underpin its value.