AI Appraisal Estimate

This lot consists of four faceted peridot gemstones, characterized by their distinct yellowish-green to lime-green olive hue. The stones are cut in an oval shape with a rose-cut style or shallow dome faceting visible on the upper surface. Each gemstone displays a high degree of transparency and vitreous luster, indicating quality mineral specimens from the olivine group. The dimensions appear relatively uniform, though individual carat weights remain undetermined without a scale. The physical condition shows clean facets with minimal visible abrasions on the table or crown areas. These stones exhibit the classic 'oily' or greasy luster common to peridot. No significant internal inclusions like 'lily pads' are immediately visible at this magnification, suggesting high clarity. These are contemporary faceted stones suitable for jewelry settings such as rings or earrings. The craftsmanship displays symmetrical point junctions and polished girdles, marking them as standard commercial-to-fine grade loose gems. The background material is a textured dark grey foam, used for display and protection.

I have examined the four oval rose-cut peridot gemstones via high-resolution imagery. The specimens exhibit the characteristic 'olive-oil' yellowish-green hue associated with high-quality olivine. Based on visual inspection, the stones show excellent transparency and a vitreous luster. The facets appear symmetrical with no significant surface-reaching fractures or abrasions, suggesting a 'Fine' commercial grade. Total estimated weight for the lot is approximately 4.00 to 6.00 carats. The market for peridot remains stable; while not as rare as emerald or tsavorite, stones of this clarity and vibrant saturation are in consistent demand for custom jewelry. The rose-cut faceting is a specific aesthetic choice that slightly lowers the per-carat price compared to traditional deep brilliant cuts but adds unique appeal for vintage-style settings. Factors impacting value include the lack of visible 'lily pad' inclusions and the uniformity of the set. However, a definitive appraisal is limited by the digital format. I cannot verify the stones' refractive index or specific gravity to rule out synthetic glass or green spinel simulants. A full authentication requires a physical examination using a refractometer, a Chelsea filter, and a high-power microscope to check for doubling of back facets. Provenance documentation or a GIA/AGL lab report would be necessary to confirm the origin (e.g., Arizona vs. Myanmar) and the absence of clarity-enhancing treatments.