4.15 Ct. Peridot from Ceylon (Sri Lanka)

This 4.15 carat oval peridot from Ceylon, presented by The Natural Gemstone Company, is described in exacting gemological terms for the discerning buyer, the gem measures 11.06 by 9.13 by 6.00 millimeters, the outline is a proportionally balanced oval that reads well for both solitaire and three stone designs, the cutting style is a mixed brilliant, with a faceted crown that employs scintillating brilliant facets to optimize return and a pavilion executed with carefully graded step and modified facets to stabilize color and contrast, the result is a face up presentation that leverages intense color intensity to maximum effect, the polish is graded excellent, providing crisp facet junctions and mirror like facet planes that strengthen light return, the clarity is slightly included as evaluated at eye level, these inclusions are consistent with natural olivine matrix features and are modest in size and placement, the stone has been heat treated to refine hue and remove minor brown overtones, this treatment has been applied conservatively to preserve crystal integrity and to enhance the vivid olive green that is characteristic of high quality Sri Lankan peridot.

From a gemological perspective this peridot exhibits the optical and physical attributes that informed buyers expect, peridot is gem quality olivine, composition predominantly magnesium iron silicate, it sits in the orthorhombic system which imparts discrete optic orientation and measurable birefringence, standard refractive indices for peridot fall into a high zone for gemstones, delivering strong relief against the mounting and excellent light performance when the cutter harmonizes pavilion angles with crown geometry, the mixed brilliant approach used here emphasizes a pronounced table and shallow crown to saturate tone without sacrificing brilliance, facet proportions have been chosen to misdirect light through the body color to produce uniform green saturation across the oval silhouette, the gem reports a Mohs hardness near 6.5 to 7 which is suitable for everyday wear provided mounting protection considerations are observed, specific gravity is sufficiently high to lend the stone a satisfying heft for its size, the slight inclusions noted can be typical features such as small oxide crystals or minute negative crystals, these inclusions do not materially diminish the gem's transparency or its attractive lime to olive green fire under both daylight and incandescent illumination, the excellent polish and accurate symmetry minimize light leak and create a lively face up, the heat enhancement applied is common for peridot and has been carried out to industry standards, the treatment is stable, detected by experienced gem setters and documented by The Natural Gemstone Company for full transparency.

As a piece intended to become a generational heirloom this peridot combines provenance, craft, and longevity in a way that rewards considered design and maintenance, the origin of Ceylon confers a documented history that enhances provenance value, the robust yet manageable hardness profile recommends protective design choices, a bezel mount or a well engineered halo with a low profile gallery will reduce edge exposure and help prevent abrasion, for rings a bezel or partially bezelled head preserves the girdle and reduces the risk of chipping at the narrow edge, pendants benefit from low stress bezels and secure prongs oriented to the oval axis, metal selection in 18 karat gold alloys or platinum is advisable to provide lasting support while resisting long term wear, routine care is straightforward, warm soapy water and a soft brush remove surface oils and residue, avoid steam cleaning and aggressive ultrasonic baths that can exacerbate internal stresses or affect surface condition if inclusions are present, professional inspection at intervals will ensure prong integrity and allow for re polishing if minor abrasions accumulate over decades, The Natural Gemstone Company will provide provenance documentation and care guidance to accompany the gem, this enables confident transmission to the next generation, the intrinsic qualities of the stone, combined with judicious setting and maintenance, will sustain its optical performance and aesthetic appeal, thereby creating an heirloom that aligns craft, science, and sentimental value for collectors and families who seek a gemstone built to endure.