28.79 Ct. Greenish Yellow (Lemon Quartz) Quartz from Madagascar

One beautiful transparent 28.79 carat oval shape greenish yellow lemon quartz from Madagascar, dimensions 22.65 by 18.32 by 11.72 millimeters, faceted with a mixed brilliant cut, clarity eye clean at eye level, medium color intensity, and excellent polish, no enhancement, presented by The Natural Gemstone Company. The first impression of this stone is its fresh lemon hue with a subtle green undertone, a color that sits between the cheerful clarity of pale yellow quartz and the verdant suggestion of green quartz, creating a versatile tone that adapts to a wide range of jewelry settings. The mixed brilliant cut maximizes light return across the large table and generous pavilion, producing flashes that emphasize both the stone center and crown, rather than concentrating brightness only at the edges. At nearly 29 carats this oval offers visual impact without heaviness, its proportions and depth allowing the color to breathe and remain evenly distributed. Because this gemstone is eye clean and free of enhancements, the purity of its tone and the natural origin of its color are immediately apparent, qualities that appeal to connoisseurs seeking authenticity over artificially modified pieces.

When compared to lemon quartz and citrine specimens from Brazil, this Madagascar stone reveals a distinct personality, Brazilian citrine typically leans warmer and more golden, often showing honey and cognac notes when the tone deepens, which can make Brazilian pieces read as more autumnal. By contrast this greenish yellow Madagascar quartz maintains a lighter, fresher character that reads as springlike, its medium intensity offering clarity and lift rather than the richer saturation seen in many Brazilian citrines. In markets where Brazil is synonymous with yellow quartz, buyers often encounter material that has been heat treated to intensify orange and golden tones, or irradiated to shift greenish hues toward yellow, practices that alter both hue and tone. Our Madagascar piece stands apart because its greenish yellow is a natural expression of its geology, presenting a cooler leaning hue and an even tone that does not concentrate color in one area. For a customer comparing locations, the Madagascar hue will appeal to those who prefer a restrained, elegant yellow that complements cool metals and can be set in designs where color needs to sit quietly alongside diamond accents rather than compete.

Comparing this gem to yellow sapphires from Sri Lanka and Thailand highlights another dimension of hue and tone differences, Sri Lankan yellow sapphires often display a vivid, saturated yellow that can read more intense and warmer than this lemon quartz, their higher refractive index and dispersion giving them more brilliance and a different visual weight in jewelry. A Sri Lankan sapphire in a comparable size will typically present a denser tone and greater saturation, which is desirable for those seeking a gemstone that announces itself boldly. Our Madagascar lemon quartz, with its medium intensity and greenish tinge, however, offers a light filled, airy presence that pairs beautifully with minimalist designs and pieces intended to show subtler color. Likewise comparing to heliodor beryl from Namibia or Brazil, which can carry a golden to slightly greenish yellow but usually with a higher clarity threshold and a different reflective quality, the quartz remains distinct for its glassy, bright sparkle and ease of wear. Buyers who compare these locations will notice that Madagascar lemon quartz yields a combination of purity, natural hue, and even tone that is rare among untreated examples, especially at this size and clarity, making it a compelling alternative for those weighing brightness against saturation in their purchase decision.

From a value and uniqueness perspective The Natural Gemstone Company presents this Madagascar lemon quartz as a superb choice for the discerning buyer who seeks a combination of natural color, generous size, and honest presentation. The absence of enhancement increases its collectability, while the eye clean clarity minimizes the need for eye catching masking settings, permitting a variety of mounting styles from solitaire rings to halo pendants without concern for visible inclusions. The mixed brilliant faceting was executed to balance scintillation and color distribution, a cutter choice that elevates the stone above simpler cuts found in mass market pieces, and the excellent polish ensures that every facet contributes to the gem's lively play of light. In comparison to many commercial yellow stones that are treated or that sacrifice clarity for color, this Madagascar quartz offers superior value, its natural hue and transparency translating into a stone that feels honest and luxurious at an approachable price point. For customers trying to choose between saturated sapphires, warm Brazilian citrines, and this greenish yellow Madagascar quartz, consider the intended design, the metal pairing, and whether you desire a cooler yellow with green undertones that will remain naturally beautiful without treatment, and then reach out to The Natural Gemstone Company for more details, imagery, and bespoke setting advice.