4.06 Ct. Peridot from Ceylon (Sri Lanka)

This listing presents a fine, transparent 4.06 carat oval peridot, measuring 11.18 by 9.22 by 5.90 millimeters, with an intense green color and an excellent polish. The gem is cut in an oval mixed brilliant style, and its clarity is graded as slightly included when evaluated at eye level. This peridot has been heat treated to enhance its vibrancy, and it is documented as originating from Ceylon Sri Lanka. At The Natural Gemstone Company we disclose enhancements and origin details, because provenance and treatment history are important to informed buyers and contribute to long term value and enjoyment.

Peridot is an olivine group mineral whose green color is caused primarily by iron substituting into the crystal lattice, and that chemistry also affects the way light behaves inside the stone. Peridot typically exhibits a refractive index in the range of approximately 1.65 to 1.69, and a modest birefringence of about 0.036 to 0.039. Those optical constants give peridot a lively brilliance when faceted well, and they also produce a slight doubling of facet lines when viewed through certain orientations. The intense lime green of this specimen is a hallmark of high quality peridot material from Sri Lanka, and the heat treatment applied to this gem has been carried out to remove any slight brownish overtones and to stabilize the pure green tone, a commonly accepted enhancement that improves consumer appeal without degrading stability.

The mixed brilliant oval cut of this stone is central to how it returns and disperses light, and careful proportional design is what creates both strong overall brightness and crisp scintillation across the face of the gem. The dimensions and the measured pavilion depth result in an overall depth of approximately 57.8 percent relative to the average diameter, a proportion that sits well within the range often preferred for oval mixed cuts. The mixed brilliant style combines a brilliant facet arrangement on the crown with a modified pavilion facet layout, producing a balance between contrast and flash. The crown facet angles and the carefully executed pavilion facets guide incoming light to reflect and refract within the body of the peridot, enhancing internal light return rather than allowing light to escape through the pavilion. The oval outline also elongates the visual profile of the gem, creating a series of linear facet reflections that travel with hand movement, while the mixed cut preserves concentrated points of bright return that make the face lively in both daylight and artificial lighting.

Clarity and polish work together to determine how much of the intrinsic brilliance the cutter can reveal, and in this example the slightly included clarity means there are minor natural inclusions visible under close inspection at eye level, typical of natural peridot and not unusual in material of this size. Those inclusions are small and do not materially interrupt the transmission of light through the majority of the stone, so the gem reads as transparent and bright to the naked eye. The excellent polish reported by our examining gemmologist ensures that facet junctions are sharp and reflective surfaces are smooth, which maximizes specular reflection and the perception of depth within the gem. For a connoisseur, the tradeoff between carat weight and internal characteristics is often a deliberate choice, and this stone offers a substantial 4.06 carat weight together with clean visual performance and intact durability for everyday wear.

For the educated buyer this peridot represents a compelling combination of natural origin, disclosed enhancement, smart cutting and attractive proportions, all factors that the discerning collector values when assessing long term desirability. The Sri Lankan provenance contributes a desirable story and a known geological source, while the heat treatment is both stable and commonly accepted within the trade, improving color without masking the natural character of the stone. In jewelry, the oval mixed brilliant will perform especially well in open settings that allow light to reach the pavilion such as prong mounted rings or pendants, and orientation along the finger can be chosen to emphasize either length or face up flash. At The Natural Gemstone Company we stand behind our descriptions, and we are available to discuss setting recommendations, gem care, and independent certification options for buyers who prefer a laboratory report. This 4.06 carat oval peridot is a well considered choice for anyone seeking a significant natural green gem with exemplary cutting and a vivid color that communicates both geological authenticity and refined workmanship.