6.39 Ct. Citrine from Ceylon (Sri Lanka)

This elegant natural citrine offered by The Natural Gemstone Company is a transparent oval weighing 6.39 carats, measuring 12.69 by 10.02 by 6.37 millimeters, and fashioned in a mixed brilliant cut. The gem displays an intense orange color, accompanied by a clarity grading of very slightly included when evaluated at eye level, and an excellent polish, all consistent with careful lapidary work. It is important to note that this stone has received no enhancement and is of Ceylon Sri Lanka origin, a provenance respected for producing high quality quartz varieties. As a quartz species, citrine has a refractive index around 1.544 to 1.553, a specific gravity near 2.65, limited dispersion, and overall robust durability with a Mohs hardness of 7, making this gem both visually appealing and practical for ring or pendant use. The mixed brilliant faceting strategy combines a faceted crown that maximizes scintillation with a pavilion design that returns light to the viewer, and the result is a balance between lively sparkle and saturated color depth.

Under different lighting conditions this citrine will display a nuanced and desirable range of optical behavior. In bright daylight, particularly open shade or indirect north light, the stone emphasizes its golden orange heart, with the mixed brilliant facets breaking light into crisp flashes and producing a warm, sunny appearance that reads slightly lighter and more golden than in artificial light. Under cool white LED lighting the citrine tends to retain its orange saturation while producing sharper, more defined facet reflections, giving a more brilliant and slightly more orange amber presentation. Under incandescent or warm halogen sources the gem will appear richer and deeper, taking on a glowing, almost pumpkin orange or cognac tone as the longer red wavelengths enhance the stone’s warm hues. In low light or candlelight the citrine’s larger facets and clean clarity will create broad internal flashes and a soft glow, with the intense color concentrating into deeper reddish orange zones, and this makes it particularly attractive for evening wear or dramatic mounted pieces. Photography using direct flash will exaggerate internal sparkle but may slightly wash out the subtleties of the stone’s saturation if not balanced, so when setting or photographing the gem an open setting that allows back and side light to enter will preserve the most natural and lively appearance.

For the educated buyer this citrine represents a compelling combination of attributes that justify its consideration as both a collectible gem and a center stone for fine jewelry. The substantial 6.39 carat weight coupled with dimensions that present a pleasing oval face up make it suitable for a range of settings, with prong or open gallery designs recommended to optimize light return and color display. The absence of enhancement is significant given that many market citrines are heat treated from amethyst, and natural color from Sri Lanka enhances provenance value and collecting appeal. The very slightly included clarity means inclusions are minimal at eye level and do not materially detract from the gem’s transparency or brilliance, while the excellent polish supports strong surface luster and light performance. From a practical standpoint the stone’s hardness and stability under normal wear means it is well suited to rings, pendants, and bespoke pieces, and routine care with warm soapy water and a soft brush will maintain its appearance, avoiding harsh chemical exposure and abrupt thermal shock. At The Natural Gemstone Company we document origin and enhancement status for our gems and can provide additional gemological details or imaging on request, and we welcome inquiries from buyers seeking certification, custom mounting advice, or multiple view photographs to confirm how this vibrant Ceylon citrine will perform in the setting and lighting conditions that matter most to you.