1.94 Ct. Yellow Zircon from Ceylon (Sri Lanka)

This transparent 1.94 carat oval yellow zircon presents a precise combination of dimensions and cutting that will appeal to technical buyers and collectors alike, The Natural Gemstone Company offers this gem with full technical disclosure. The stone measures 7.60 x 6.25 x 4.15 mm, exhibiting an oval outline with a length to width ratio of approximately 1.22 to 1, a proportion that provides balanced spread without appearing elongated. The cutting style is faceted, executed as a mixed brilliant cut that pairs a brilliant faceted crown with a more structured pavilion geometry, this configuration enhances both scintillation and color depth. Clarity is graded eye clean at eye level, meaning no inclusions are visible to standard unaided observation, and the polish is graded excellent, ensuring sharp facet junctions and minimal surface diffusion of light. The color is described as intense, an evenly saturated yellow that traces its origin to Ceylon Sri Lanka, and the specimen is natural with no enhancement, retaining original color and internal character.

Optical and physical properties of zircon are central to appreciating its performance in jewelry, the high refractive index and notable dispersion produce strong brilliance and fire, characteristics that this well cut mixed brilliant intensifies. Zircon exhibits birefringence that can reach measurable levels, and skilled cutting mitigates optical doubling while maximizing faceted return, this stone demonstrates controlled birefringent behavior through precise facet alignment and pavilion angles. Specific gravity for zircon is appreciably higher than common gem silicates, so this 1.94 carat stone presents a satisfying heft relative to similar sized quartz or topaz. Hardness for natural zircon typically ranges around 6.5 to 7.5 on the Mohs scale, placing it above many organics and softer silicates, but below topaz and corundum, this informs both polishing practice and practical wear considerations. The mixed brilliant approach used here optimizes crown height and table size to balance color saturation with light return, creating a lively face up appearance without excessive windowing or extinction.

Durability for daily wear is a function of hardness, toughness, cleavage, and stability, zircon combines good hardness with certain brittleness and cleavage tendencies that warrant considered mounting choices, this piece is well suited for everyday jewelry when set thoughtfully. The stone is not thermally stable relative to some gems, exposure to high heat or rapid temperature changes can induce color alteration or internal strain relief, this is relevant during soldering and repair work, jewelers should protect the setting during thermal processes. Mechanical toughness is moderate, the presence of distinct cleavage planes means that direct sharp impacts or heavy knocks can produce fractures, therefore a protective setting such as a bezel or low profile four prong with reinforced prong shoulders is recommended for ring applications. For pendants and earrings where the risk of impact is lower, classic prong settings work well to exhibit brilliance, for rings intended for daily wear a partial or full bezel will substantially reduce chipping risk and protect facet edges. Routine cleaning with warm soapy water and a soft brush will maintain brilliance, avoid ultrasonic cleaners and steam unless explicitly cleared by a qualified gemologist, and avoid harsh chemical exposure and prolonged high temperature exposure to preserve original natural color.

Craftsmanship details are important to performance and value, the pavilion depth and facet symmetry of this oval were cut to industry conscious proportions, the measured depth of 4.15 mm relative to the averaged diameter of 6.93 mm yields a depth ratio of approximately 59.9 percent, an optimal proportion for mixed brilliant oval cuts that balances return of light with color saturation. The table and crown geometry were executed to support scintillation micro flashes, while the pavilion faceting disperses light into internal flashes of spectral color, the excellent polish ensures minimal surface scattering and maximum internal reflection. The eye clean clarity grade allows for uninterrupted optical performance, enabling the intense yellow hue to present vivid and even across the face up view. Given the Sri Lankan origin, the crystal material exhibits classic zircon crystal quality, with tight crystal structure and well defined cleavage planes, the absence of enhancement affirms that the intense yellow is inherent and not the result of heat treatment or irradiation. The Natural Gemstone Company can provide detailed images and handling recommendations, and we assess that with appropriate setting choices and standard gem care, this 1.94 carat oval yellow zircon will perform admirably in daily wear jewelry, offering distinct brilliance, notable heft, and natural color stability under normal use.