0.49 Ct. Orange Madeira Citrine from Brazil

This 0.49 carat round shape Madeira citrine offered by The Natural Gemstone Company is a technically tuned example of colored quartz craftsmanship, with precise dimensions of 5.13 millimeters by 5.13 millimeters by 3.58 millimeters, a mixed brilliant cut, and a clarity grade of slightly included when evaluated at eye level. The mixed brilliant design uses a brilliant style crown combined with a calibrated pavilion that favours color saturation, and the gem displays an excellent polish across all facet planes. The stone exhibits vivid color intensity, a warm orange Madeira tone that is homogeneous to the unaided eye, and the enhancement history is limited to standard heat treatment, a stable and widely accepted practice in the trade to optimize the orange spectrum. The Natural Gemstone Company presents this specimen with full disclosure of its treatment and Brazilian origin.

From a cutting and proportion perspective this round gem has a depth ratio that is noteworthy, the measured height of 3.58 millimeters relative to a diameter of 5.13 millimeters yields a depth ratio of approximately 69.8 percent, a figure that is deeper than the typical range for colorless round brilliants but which is intentional for colored quartz. A deeper pavilion increases the path length of light in the material, promoting absorption and enhancing saturation of orange hues, which is desirable for Madeira citrine where vivid tone and richness are prized. The mixed brilliant approach merges the light return and scintillation of a brilliant facet arrangement on the crown, with a pavilion structure that is tuned to control face up color and reduce flashiness, resulting in consistent color delivery under varied lighting conditions. The excellent polish and carefully aligned crown and pavilion facet junctions minimize light leakage and preserve contrast, producing a gem that reads as saturated and alive rather than washed out.

Color origin and treatment are central to the valuation of Madeira citrine, and this piece benefits from both geological provenance and considered thermal enhancement. Brazilian sources are among the most respected for citrine supply because their pegmatitic and hydrothermal systems can yield well crystallized quartz with iron as the chromophore, and thermal exposure can convert iron states to produce stable orange tones. Heat treatment in controlled conditions is a known and accepted method to intensify orange and reddish orange hues from paler or amethyst and smoky quartz precursors, and in this instance the result is a vivid Madeira orange that is uniform through the stone when viewed face up. The Brazilian origin contributes to market confidence, because stones from established localities are easier to trace and authenticate, and collectors and designers often assign a premium to material from historically productive regions such as Minas Gerais and surrounding districts, where systematic mining and sorting have produced consistent color profiles and gem quality material over decades.

Clarity is an important technical consideration for colored gemstones, since inclusions can either distract from color or add character depending on their nature and position. This citrine is graded slightly included at eye level, which indicates small internal features that are observable without magnification but that do not compromise structural integrity. Slight inclusions in quartz typically present as fine crystals, minute feathers, or pinpoint clusters, and in this stone they are not concentrated in the table center in a way that interferes with the perceived saturation or brilliance. The excellent polish and adept facet placement help to mask or diffuse minor inclusions, allowing strong color and controlled light return to remain the dominant visual attributes. For practical use the material is durable consistent with quartz hardness and will perform well in a range of settings, with the slightly included clarity giving the stone character while retaining commercial and aesthetic appeal.

From a value and craftsmanship standpoint this 0.49 carat round Madeira citrine is positioned for use in refined bespoke jewellery, and The Natural Gemstone Company can assist designers and clients in translating its technical attributes into finished pieces. The combination of vivid orange color, deliberate mixed brilliant cutting, a depth ratio that enhances saturation, and Brazilian provenance creates a profile that appeals to knowledgeable buyers who prioritize provenance driven value and thoughtful lapidary technique. Heat treatment is noted and stable, and standard care recommendations apply, since quartz is robust but should avoid prolonged exposure to extreme heat or aggressive cleaning modalities that could affect settings rather than the stone itself. For ring applications a protective bezel or low profile prong setting will reduce risk to the girdle and pavilion, while pendant applications allow the color to be displayed in varied light. Contact The Natural Gemstone Company for microscopic images, precise facet maps, or to request a tailored mounting plan, and we will provide the technical documentation collectors and designers require to make an informed selection.