15.94 Ct. Star Ruby from Madagascar

One exceptional gemstone offered by The Natural Ruby Company is a beautifully translucent, GIA certified, purplish red star ruby weighing 15.94 carats, oval in shape, with precise dimensions of 14.64 by 12.27 by 7.32 millimeters. This gem is fashioned with a double cabochon cut, expertly shaped to maximize the asterism that star ruby collectors prize, and it exhibits an intense color intensity with a lab color classification of Purplish Red. The clarity has been graded as slightly included, evaluated at eye level, which is typical for natural rubies that display strong star phenomena, and the surface finish is an excellent polish that enhances both the color and the star. Importantly, this stone is natural and untreated, with no enhancement, and its origin is Madagascar, a locale known for producing fine star rubies with striking optical effects. The GIA certificate accompanies the stone, providing independent verification of weight, dimensions, color classification, clarity observations, and the absence of enhancement, ensuring full confidence in provenance and quality.

Visually, this purplish red star ruby is captivating, with a luminous translucent body that allows the asterism to appear crisp and mobile as light moves across the dome. The double cabochon shaping creates a broad, gently domed surface that showcases a sharp star that appears to glide when the gem is tilted, producing dramatic flashes of light at the intersection points. The intense color provides a rich backdrop for the star, the slightly included clarity contributes to the internal structure that forms the asterism, and the excellent polish allows the star to reflect cleanly and brightly. Under direct light the star concentrates into bright focal points, and under softer illumination the body color reveals depth and subtle purplish undertones. This combination of intense color, strong star effect, and substantial carat weight makes the gem rare and desirable, especially given its untreated status and GIA certification, qualities that discerning collectors and connoisseurs seek when selecting a museum quality piece.

For design and wearability the substantial 15.94 carat weight and generous oval dimensions make this star ruby ideal for statement pieces, bespoke jewelry commissions, or as the centerpiece of a collector grade cabinet. It would translate beautifully into a bold pendant that allows the dome to play with light, a refined ring set with a protective bezel that highlights the dome while securing the stone, or a high end brooch where the star can be oriented for maximum impact. Framing the stone with warm colored accent stones, such as natural sapphires or carefully matched spinel, will enhance the purplish red hue and create a luxurious composition. As a natural, untreated gem from Madagascar with GIA documentation, this star ruby also holds appeal as an investment quality specimen, for museums and private collectors who value transparency in origin and treatment. At The Natural Ruby Company we can provide guidance on proportion, setting style, and mounting choices to ensure the gem is displayed to best advantage, and we welcome inquiries about custom design options and professional recommendations tailored to your vision.

Care and provenance are central to enjoying and preserving this exceptional star ruby, and the GIA report supplied with the stone will be included for your records, giving clear documentation of its natural origin, color classification, weight, and absence of enhancement. For everyday care we recommend gentle cleaning with warm soapy water and a soft brush, rinsing thoroughly and drying with a soft cloth, avoiding harsh chemicals, abrasive cleaners, and extreme heat. Because the stone is natural and slightly included, you may want to avoid ultrasonic cleaners and steamers unless advised by a qualified jeweler after inspection, and when setting the stone choose secure, protective mounting styles to guard the domed surface from knocks. If you would like additional high resolution photos, a short video showing the movement of the star under different lighting, or independent appraisal services, The Natural Ruby Company can arrange these for you, and our team is available to discuss mounting options, shipping, insurance, and private viewing appointments. We take pride in sourcing exceptional natural rubies and supporting our clients with transparent information, expert advice, and personalized service, helping you acquire a distinctive and lasting treasure.