AI Appraisal Estimate

This item is a contemporary cocktail-style ring featuring a cushion-cut cabochon of Atlantisite, a mineral combination consisting of green Serpentine mottled with purple Stichtite inclusions. The semi-precious gemstone is approximately 12mm by 10mm and exhibits a characteristic matte to slightly waxy luster with a distinctive bi-color pattern. The stone is held in place by a four-prong setting mounted on a narrow, polished silver-toned metal band, likely sterling silver based on typical artisanal jewelry standards, though no hallmarks are visible in the provided view. The craftsmanship displays a utilitarian, modern aesthetic with a focus on highlighting the natural matrix of the rare Tasmanian mineral. Condition-wise, the ring shows light surface scratches and minor tarnishing on the band and prongs consistent with gentle wear. The stone appears intact with no visible fissures, although its natural texture includes inherent surface irregularities common to this mineral type. Its organic, earthy appearance suggests it is a piece of contemporary holistic or artisanal jewelry from the late 20th or early 21st century.

I have conducted a visual appraisal of this contemporary cocktail ring featuring a cushion-cut cabochon of Atlantisite (Stichtite in Serpentine). The central stone measures approximately 12x10mm and displays the classic yellowish-green base of serpentine mottled with well-defined purple stichtite inclusions. Based on my visual inspection, the mineral appears consistent with material sourced from prospective deposits in Zeehan, Tasmania. The setting is a standard four-prong utilitarian design on a polished silver-toned band. While its aesthetic suggests sterling silver, the absence of visible hallmarks prevents a definitive metal purity confirmation without a chemical acid test or XRF analysis. The condition is graded as 'Good,' with visible micro-scratches on the band and slight oxidation around the prongs, which is common for artisanal jewelry of this era. Market demand for Atlantisite is primarily driven by the metaphysical and holistic jewelry sectors rather than high-end gemological collectors. The value is determined by the stone's size and pattern clarity rather than the metal weight. Comparable sales for non-designer, silver-set Atlantisite rings typically fall within the $50-$120 range. Limitations: This valuation is based solely on digital images. A physical inspection is required to verify the metal's fineness via testing and to ensure the stone has not been stabilized with resins. Definitive authentication would also require confirming the absence of dye treatments, which occasionally occur in lower-grade serpentine specimens.