12.06 Ct. Yellowish Orange Citrine from Ceylon (Sri Lanka)

This 12.06 carat fancy shape yellowish orange citrine from Ceylon Sri Lanka presents a clear record of geological processes that began millions of years ago. Born in a silica rich environment where slow cooling and prolonged chemical exchange allowed well formed crystals to develop, this specimen began as microscopic deposits in fractures and cavities within host rock. Over geological timescales, silica bearing fluids migrated through fissures, depositing layers of quartz under fluctuating temperatures and pressures. Trace amounts of iron incorporated into the crystal lattice produced the warm yellow to orange hues, a subtle chemical signature that distinguishes this citrine from ordinary quartz. The result is a transparent gem with intense color intensity, its internal structure free of eye visible inclusions, graded as eye clean when evaluated at eye level.

Cut and finished to highlight both color and clarity, this faceted citrine features a step cut executed in a refined fancy shape, with dimensions of 14.40 x 17.65 x 11.01 mm. The faceting pattern emphasizes even color distribution and optical depth, while an excellent polish enhances surface luster and light return. To stabilize and intensify the natural hue, the gem underwent controlled heat treatment, a common and accepted enhancement that optimizes the yellowish orange tone without compromising structural integrity. The 12.06 carat weight combines a substantial presence with wearability for a range of settings, and the overall appearance reflects careful lapidary work from rough to finished stone. The Natural Gemstone Company presents this citrine as an example of geological time converted into a refined gem, a piece that carries both the measurable specifications collectors require and the deep time narrative that informs its character.