Round Cut Stud Earrings in Presentation Box

This pair of stud earrings features clear, round brilliant-cut stones set in a yellow-toned metal mount, likely gold or gold-plated. Each earring appears to be held by a traditional multi-prong setting (possibly six prongs) to maximize light entry and brilliance. The stones exhibit a colorless appearance, which could indicate diamonds, white sapphire, or cubic zirconia. They are presented in a grey or taupe-colored velvet-textured clamshell jewelry box with a cream-colored satin-lined interior lid and a matching grey slotted velvet pad for secure placement. The box shows minor signs of age and handled wear, including a small dark spot on the outer top surface. While the exact metal purity and stone identity cannot be confirmed without testing for carats or refractive index, the classic design suggests a mid-to-late 20th-century style. The prong work appears symmetrical, indicating standard commercial craftsmanship. The size of the studs appears to be approximately 0.25 to 0.50 carats each, suitable for daily wear or formal occasions. No visible hallmarks or maker's marks are discernible from the image resolution.

Upon visual inspection of the provided images, I have examined a pair of round brilliant-cut stud earrings set in a yellow-toned metal, presented in a vintage-style grey velvet box. The valuation range is exceptionally wide due to the critical inability to test materials remotely. If these are natural diamonds (approx. 0.50ctw - 1.00ctw) set in 14k gold, the value would trend toward the $800–$1,200 range. However, if they are cubic zirconia or white sapphires in gold-plated metal, the value falls significantly to the $40–$100 range. The stones appear colorless and feature a standard brilliant cut, secured by a classic six-prong setting typical of mid-20th-century jewelry. The craftsmanship is competent and symmetrical, suggesting professional manufacturing rather than high-end artisan work. The presentation box adds a modest vintage appeal but does not significantly increase the intrinsic value. Crucially, authentication is impossible without physical handling. To determine the higher end of the valuation, I would need to perform thermal conductivity testing (for diamonds), specific gravity tests, and magnified examination of inclusions. Furthermore, acid testing or electronic gold testing is required to confirm if the metal is solid 14k/18k gold or merely plated base metal. Without maker's marks or hallmarks visible in the photos to establish a luxury brand provenance, the appraisal relies entirely on the intrinsic material value, which currently remains unverified.