4.87 Ct. Yellow Citrine from Ceylon (Sri Lanka)

This 4.87 carat, oval shape yellow citrine was born in the gem fields of Ceylon Sri Lanka, a region renowned for its long standing gemology tradition and skilled hand sorting. The rough was recovered from shallow alluvial and vein host deposits, inspected on site for crystalline habit and zoning, and selected for uniform color potential and structural integrity. Early stage evaluation prioritized pieces that would benefit from controlled heat treatment to convert amethyst and subtle iron bearing quartz into a stable, saturated yellow tone. From the moment the crystal left the mine, every step was documented, ensuring traceability from origin to market, and establishing the provenance that discriminating buyers require.

The cutting strategy for this gem centers on a mixed brilliant faceting regime, executed to balance maximum light return with stable color saturation. The finished dimensions are 12.65 x 10.23 x 6.55 mm, yielding a length to width ratio of approximately 1.24 to 1, an ideal proportion for elegance and visual elongation in an oval. The pavilion and crown angles were calibrated to the refractive index of quartz, approximately 1.544 to 1.553, and to its low dispersion characteristics, in order to produce lively face up brilliance without excessive windowing. The faceter employed a brilliant style crown to enhance scissor scintillation, while the lower facets were modified to control light leakage and preserve color depth. Girdle thickness was kept consistent to avoid stress points, and the symmetry was tuned to ensure balanced facet alignment across the surface.

At eye level the stone is eye clean, free of visible inclusions that could disrupt optical performance, and presents an intense color intensity with a pure yellow hue and a faint warm honey undertone that reads as rich and saturated in both incandescent and daylight conditions. The gem underwent precise heat treatment to stabilize and intensify its color, a standard and transparent enhancement for citrine that improves uniformity and removes unwanted purple zoning. The polish is excellent, producing sharp facet junctions and mirror like facet planes that maximize return and face up luster. The finished depth relative to the average of the length and width is approximately 57.3 percent, a proportion chosen to optimize the balance between brilliance and weight retention for a premium calibrated oval.

The Natural Gemstone Company presents this citrine as a ready for design gemstone, accompanied by full disclosure of enhancement, origin and a detailed technical report on proportion, clarity and color. For setting, the stone benefits from a prong or partial bezel approach that allows light to enter the crown and showcase the intense yellow saturation, while protecting the girdle and maintaining the excellent polish. Buyers who appreciate technical rigor will value the documented journey from Ceylon extraction to masterful faceting, the calibrated facet scheme adapted to quartz optics, and the transparent heat treatment that yields a stable and vivid color. The Natural Gemstone Company stands behind the gem with provenance records and is available to provide additional technical images, facet maps, and setting recommendations tailored to conserve its visual performance and to guide the creation of a distinguished jewelry piece.