0.50 Ct. Orange Madeira Citrine from Brazil

One transparent 0.50 carat round shape orange Madeira citrine is presented with precise dimensions of 5.06 x 5.05 x 3.79 mm, a mixed brilliant cut, and a clarity grade of very very slightly included when evaluated at eye level. The stone displays vivid color intensity and an excellent polish, and it has been heat treated to develop the characteristic Madeira orange hue. Origin is Brazil, a source long associated with consistently fine quality citrines. Photographs include face up and profile views that illustrate the stone at scale, along with images that show the gem placed on a finger and held in tweezers for size reference. The combination of exact dimensions, weight, and the mixed brilliant faceting yields a balanced face up appearance, with well proportioned crown height and pavilion depth that support optimal light performance.

The visual character and exceptional sparkle of this Madeira citrine arise from the interplay of its internal crystal structure, its optical constants, and the precision of the cutting and polishing. As a variety of quartz, citrine possesses a trigonal silica framework that promotes excellent transparency, and its refractive index range contributes to effective internal reflection. The mixed brilliant cut used on this round stone marries a brilliant style crown with stepped or modified pavilion facets, creating a repeated sequence of angles that return light to the viewer as bright flashes and scintillation. High clarity as seen at eye level reduces light loss from internal obstructions, allowing brighter and more coherent rays to emerge from the crown facets. The vivid orange saturation enhances contrast between bright facet flashes and deeper color zones, which sharpens perceived brilliance and gives the stone a lively, firelike presence. The excellent polish on each facet minimizes surface scatter, preserving mirror like reflections and ensuring that light passes cleanly through facet junctions. When these elements are combined, the result is a citrine whose dynamic play of light and color makes its sparkle particularly striking when compared with stones that lack the same balance of optical clarity, facet precision, and strong color saturation.

Practical considerations accompany the aesthetic and optical qualities. The gem has been heat treated, a stable and commonly applied enhancement for Madeira citrines that intensifies the orange tone without compromising durability. With a hardness consistent with quartz, the stone is suitable for a broad range of jewelry applications including rings, pendants, and earrings, provided standard care is observed to protect against sharp blows and abrasive wear. For settings that emphasize the face up brilliance, prong or partial bezel styles can present the stone while allowing light to enter the pavilion, and a secure setting will protect the girdle and pavilion from accidental contact. All descriptive elements in this listing are provided by The Natural Gemstone Company, and the grading comments reflect a visual assessment at eye level of clarity, along with measured dimensions and recorded carat weight. For further technical details, setting recommendations, or additional photographs from alternate lighting angles, The Natural Gemstone Company is available to assist with objective information to support proper selection and confident placement of this Madeira citrine into a finished piece.