0.67 Ct. Peridot from Ceylon (Sri Lanka)

This transparent 0.67 carat emerald cut green peridot measures 5.93 x 3.98 x 3.02 mm, and presents a clear and well proportioned profile that demonstrates both precision cutting and natural gem quality. The stone has an emerald cut, a clarity grade of very slightly included when evaluated at eye level, a medium color intensity, and an excellent polish. The lack of any enhancement is confirmed, and the gem is sourced from Ceylon Sri Lanka, a locality known for producing peridots with clean tones and even color distribution. The proportions of the emerald cut in this example emphasize broad table and step facets, creating defined planes of light and color that allow the peridot to exhibit its characteristic green with clarity and depth. The very slightly included clarity indicates that internal features are minor and do not detract from the overall transparency or the stone s capacity to interact with light.

The visual sparkle of this peridot arises from a combination of its intrinsic crystal structure and the way it has been faceted. Peridot belongs to the olivine group and crystallizes in an orthorhombic system, a structure that contributes to consistent optical properties and distinct double refraction. The refractive index range of peridot typically falls between 1.65 and 1.69, and its birefringence is relatively strong for a gem material, commonly around 0.036 to 0.039. These optical constants mean that light entering the stone is bent and split in ways that produce internal contrast and lively flashes, particularly when the stone is cut to favor well defined facet junctions. In an emerald cut the step facets form broad reflective planes that act together with peridot s birefringence to generate a hall of mirrors effect, where flashes of bright green and pale yellow green move across the table and pavilion as the stone or the observer moves. The excellent polish on this gem further enhances facet reflectivity, minimizing surface light scattering so that more light penetrates the crystal and is returned as vivid internal brightness. The medium color intensity of this specimen balances saturation and tone, allowing both color and light return to be readily appreciated under a variety of viewing conditions.

Beyond the optical metrics, the stone s lack of treatment and its origin in Ceylon Sri Lanka are significant to its overall character and stability. Peridot color is controlled by iron within the crystal lattice, and specimens from this provenance often show an even distribution of iron that produces a clear, fresh green without overt brown or yellow overtones. The internal inclusions that place this gem at very slightly included are small and commonly composed of mineral or growth features that do not interrupt light passage to any appreciable degree, allowing the gemstone to maintain a lively interplay between brilliance and color. For jewelry applications this peridot is well suited to designs that emphasize the clean lines of an emerald cut, such as solitaire mounts, three stone settings, or bezel frames that protect the girdle. The clarity grade and excellent polish mean that minimal masking is required to achieve a refined appearance, and the dimensions make it compatible with most standard ring and pendant settings while still presenting a notable presence on the finger or at the throat.

The Natural Gemstone Company provides this peridot with documentation of its measured attributes and origin. Care recommendations are straightforward, warm soapy water and a soft brush are appropriate for routine cleaning, and sudden temperature changes or harsh chemical treatments should be avoided. Ultrasonic or steam cleaning is best approached with caution for any gem with internal features, therefore gentle manual cleaning is the preferred approach to maintain polish and facet integrity over time. When set into jewelry attention to protective settings will preserve the stone s pavilion and girdle, ensuring that its structural qualities continue to deliver the distinctive sparkle that sets this peridot apart. This gem offers a precise balance of natural optical character, careful cutting, and reliable provenance, making it a considered choice for designs where clarity of color and disciplined light performance are priorities.