0.73 Ct. Star Ruby from Mozambique

This is a beautiful semi translucent 0.73 carat oval pinkish red star ruby from Mozambique, offered by The Natural Ruby Company. The gem measures 5.36 x 4.14 x 3.05 mm and has been fashioned as a classic cabochon to best display its asterism and color. At this size the stone is compact yet striking, carrying an intense color intensity that reads as a lively pinkish red under most lighting, and a polish that has been evaluated as excellent to create a clean, reflective dome. Clarity has been graded as slightly included at eye level, which is common and desirable in star rubies where fine rutile silk inclusions are responsible for the formation of the star. There has been no enhancement to this ruby, it remains in its natural, untreated state, making it especially desirable for collectors and jewelry designers who value authenticity and the natural beauty of fine gemstones.

The star itself is a defining feature of this cabochon, appearing as a distinct, centered star that moves smoothly across the dome when the stone is tilted toward a light source. This six ray asterism appears crisp against the pinkish red body color, giving the gem an almost celestial quality. The semi translucent body allows the star to show with good contrast without the stone becoming overly dark, and the cabochon height of 3.05 mm provides enough dome to showcase the phenomenon without overwhelming the carat weight. The slight internal silk that gives rise to the star also contributes to the gem character, creating a soft, velvety texture to the eye that enhances the perception of depth and color saturation. Under direct light the star appears bright and centered, and under softer ambient light the rich color of the ruby takes center stage, making this a versatile gemstone for many jewelry designs.

From a practical standpoint, this 0.73 carat star ruby is an excellent candidate for a variety of settings, such as a delicate ring, a pendant that showcases the star under light, or a pair of matched pieces if you are designing a bespoke set. For a ring, a protective bezel setting will secure the cabochon and protect the dome from knocks, while a halo of small accent stones can emphasize the pinkish red hue and draw attention to the asterism. For a pendant, an open back setting can allow light to transmit and enliven the color, or a closed back mounting can emphasize the stone as a luminous cabochon surface, depending on the overall design and wearer preference. The slightly included clarity does not compromise stability or durability, and because this ruby is untreated, it carries the natural fingerprints of its formation, which many collectors and connoisseurs prize more highly than modified gems. Mozambique has become known for producing some of the most compelling rubies on the market, and this example demonstrates the region quality in both color and optical effect.

At The Natural Ruby Company we stand behind the natural provenance and condition of our gemstones, and we are committed to transparent, ethical sourcing and honest descriptions. This star ruby is presented without enhancement, and we will provide detailed information about origin and treatment status to support your purchase. For care, we recommend gentle cleaning with warm soapy water and a soft brush, avoiding harsh chemicals, and limiting exposure to high heat or prolonged direct sunlight to preserve the stone color and silk structure, and we advise against ultrasonic cleaning for stones with delicate internal silk. If you would like additional images, placement guides for setting, or assistance with matching this stone to a particular design vision, our team is happy to consult with you. Whether you are a collector seeking an untreated Mozambique star ruby, or a jeweler planning a special commission, this 0.73 carat pinkish red star ruby is a rare and attractive choice, and we invite you to contact The Natural Ruby Company to explore purchase options, certification, and bespoke mounting possibilities.