0.49 Ct. Madeira (Reddish Orange) Citrine from Brazil

This Madeira tone citrine from Brazil offered by The Natural Gemstone Company is a precisely specified collector grade gem, and it is described for technically minded buyers who value measured workmanship. The stone weighs 0.49 carat and presents as a round shape with dimensions of 5.13 x 5.13 x 3.58 millimeters. The color is a reddish orange Madeira hue with vivid color intensity, and the body is transparent. The gem has been heat treated, a stable and widely used enhancement to develop and stabilize Madeira coloration in quartz. The cutting style is a mixed brilliant, the clarity has been graded as slightly included at eye level, and the polish is excellent. These core metrics define the stone on paper and in hand, and they frame both its aesthetic performance and its market valuation.

From a cutting and optical engineering perspective, the mixed brilliant design on this round citrine optimizes both color saturation and light return. The mixed brilliant approach typically pairs a full brilliant crown with a modified step or pavilion, creating approximately 57 facets that balance internal reflection with controlled dispersion. For quartz with a refractive index in the range of 1.544 to 1.553 and a low dispersion of about 0.013, facet design and depth are critical to achieving lively appearance. The measured depth of 3.58 millimeters over a diameter of 5.13 millimeters corresponds to a depth proportion of about 69.8 percent, which for a mixed cut in citrine yields a slightly deeper pavilion profile that enhances face up color without unduly shrinking perceived diameter. The specific gravity of quartz at approximately 2.65 informs expected weight for volume, and the 0.49 carat weight aligns with the dimensions and density to provide a solid face up size for use in rings and pendants.

Clarity and surface finishing are equally important to technical buyers. The clarity grade of slightly included at eye level indicates the presence of small natural inclusions that are visible under close inspection without magnification. These features can be diagnostic of natural origin and do not materially compromise structural integrity for typical jewelry use. The excellent polish reported means that facet junctions are sharp and surface luster is high, maximizing light transmission and minimizing surface scattering. Because citrine is rated at 7 on the Mohs scale, it is hardy enough for everyday wear when properly set, but inclusions placed near facet junctions or girdle regions should be considered during setting design to avoid stress concentration. The heat treatment applied to achieve or intensify the Madeira tone is stable and permanent under normal wear and cleaning, but as with all gem materials, extreme thermal shock and strong acids should be avoided to preserve both polish and color.

The Brazilian origin of this citrine adds measurable provenance value for collectors and trade buyers. Brazil has a long established supply chain for gem quality quartz, and material from Brazilian pegmatitic and hydrothermal sources is prized for crystal size, color continuity, and consistent response to standard heat treatments. Provenance from Brazil contributes to buyer confidence because of documented mineralogical characteristics and the regionally consistent trace element profile that supports the deep Madeira tones seen in this stone. In market terms, Brazilian Madeira citrines command a premium over ambiguous origin material because buyers can reasonably expect reproducible characteristics, responsible mining practices in established districts, and ease of obtaining matching material for larger projects. For jewelers and designers, the combination of vivid color intensity, reliable heat treatment, and documented origin from Brazil simplifies sourcing strategies and supports a transparent value narrative when presenting finished pieces to clients.

For practical use and selection guidance from The Natural Gemstone Company, this 0.49 carat round Madeira citrine is technically suited to a variety of precision settings where color saturation and light performance are priorities. The face up diameter and depth proportion favor closed back or partial bezel settings when protecting the girdle is required, and prong settings that permit light entry from the pavilion will maximize the vivid color and brilliance engineered by the mixed brilliant cut. Cleaning with warm soapy water and a soft brush is recommended, and avoid rapid temperature changes to preserve polish and internal strain patterns. For buyers considering matched pairs or calibrated sets, the Brazilian provenance and the controlled heat treatment treatment pathway facilitate matching by color and optical response. If you require additional documentation, sourcing detail, or matching stones, The Natural Gemstone Company can provide measured reports and assist in selection to ensure the gem integrates exactly as intended into your design, providing a technically sound and visually compelling centerpiece.