Ring with green stone in the style of Gaspeite or turquoise

This item is a large statement ring featuring a prominent rectangular cabochon. The center stone displays a vibrant lime-green hue with a distinctive darker green and yellowish-green mosaic-like matrix, which is stylistically consistent with minerals such as Gaspeite or a dyed green turquoise. The stone is secured in a simple, flat-edge bezel setting made of a silver-toned metal, which appears to be consistent with sterling silver, although no hallmarks or purity stamps are visible in the provided image. The rectangular face of the ring measures approximately 20-25mm in length based on its scale relative to the wearer's hand. The setting is minimalist, emphasizing the natural patterns of the stone. In terms of condition, the stone appears well-polished with a glossy surface, and no immediate fractures or chips are visible from this angle. The metal bezel shows a smooth finish with no significant tarnish or wear apparent. The age of the piece is difficult to determine without physical inspection of the band and marks, but it reflects a contemporary or Southwestern-style aesthetic. The identification of the stone and metal is a hypothesis based on visual color and pattern; professional testing would be required to rule out composite materials or glass imitations.

I have examined the provide image of the statement ring. Based on the visual characteristics, the piece features a rectangular cabochon with a matrix and color profile consistent with a hypothesis of gaspeite or a treated green turquoise. From what I can see, the setting is a minimalist silver-toned bezel. While the appearance suggests sterling silver, I cannot verify the metal purity or the mineral's chemical composition from a photo alone, as no hallmarks or stamps are visible. The value assumes the materials are natural gaspeite or turquoise set in sterling silver. In the current market, Southwestern-style jewelry of this type remains popular, but prices are heavily dependent on material confirmation. If physical inspection and testing reveal the stone to be a synthetic composite, dyed glass, or the metal to be a common base metal alloy, the value would likely fall to a decorative range of $10-$20. To establish a more precise value, I would need to perform a physical density test on the stone, verify the metal with a touchstone or X-ray fluorescence, and inspect the band for hidden maker's marks. Without verified provenance or signatures, this is appraised as a generic 'in the style of' Southwestern artisan piece. The condition appears excellent with no visible chips, though actual surface wear can be obscured by photography lighting. Ultimately, the estimated range reflects what similar unbranded sterling and green stone rings typically command in a retail or secondary market setting.