3.40 Ct. Green (Lime Green) Peridot from Burma (Myanmar)

This listing describes one transparent Other certified green peridot, presented by The Natural Gemstone Company, with a precise set of gemological attributes. The stone weighs 3.40 carat and is fashioned in an oval shape with a mixed brilliant cut. Its measured dimensions are 10.33 by 8.04 by 5.96 millimeters, providing a substantial profile for standard settings. The gem displays a lime green hue, classified by laboratory assessment as green, with an intense color intensity and an even tone and saturation across the table and pavilion. Clarity is graded as very slightly included, evaluated at eye level, indicating that minor inclusions are present but do not materially affect overall transparency or light transmission under normal viewing conditions. The polish is graded excellent, reflecting well executed facet junctions and smooth facet planes. There has been no enhancement to alter color or clarity, and the reported origin is Burma, also known as Myanmar. Certification is recorded as Other, with the lab color classification noted as green.

Optical and material characteristics are relevant to both appraisal and design considerations. The mixed brilliant cut combines a faceted crown designed for optical return with a pavilion structure intended to enhance scintillation, resulting in a lively interplay of brightness and small flashy highlights when the stone is viewed under diffuse or direct lighting. The cut proportions, in conjunction with the measured dimensions, yield a pleasing face up size relative to the listed carat weight. The stone is transparent, which allows internal features and growth characteristics to be examined, and the very slightly included clarity grade indicates inclusions are minor, typically fine needle or crystal type features that are common in olivine group minerals. Refractive behavior is consistent with gem quality olivine, producing a fresh, glassy luster that emphasizes the lime green coloration. The excellent polish supports crisp facet reflection, and the overall combination of cut, clarity, and color produces a gem that performs reliably under both laboratory measurement and practical wear.

The geological narrative of this peridot spans deep time and dynamic Earth processes, beginning millions of years ago in the upper mantle where olivine rich peridotite constitutes a significant portion of the rock mass. Peridot is the gem quality variety of olivine, and it forms under high temperature and moderate pressure conditions within the mantle, where magnesium iron silicate crystallizes as part of the host peridotite. Over extended geological intervals, localized regions of the mantle experienced compositional and thermal conditions favorable to the growth of relatively inclusion poor olivine crystals. These crystals became entrained in volatile rich basaltic magmas or in kimberlitic eruptions, and were transported rapidly from depth toward the surface. This rapid transport is critical to preserve gem quality, as slow cooling at shallow levels tends to degrade crystal clarity. In the case of this Burmese peridot, geological processes enabled the preservation of a gem quality olivine crystal, which was eventually exposed through uplift and erosion of the host rocks, and subsequently recovered by modern mining methods. Following extraction, the rough crystal was evaluated, cut, and polished to the mixed brilliant oval seen here, tasks carried out with attention to retaining weight while optimizing optical performance. The final product was examined and certified by Other, and is offered through The Natural Gemstone Company in its natural, unenhanced state, with documented measurements, grades, and origin.