Sapphire and Diamond Sunburst Stud Earrings

This pair of stud earrings features a classic sunburst or halo design. Each earring is centered with an oval-cut dark blue gemstone, appearing to be a sapphire, estimated at approximately 0.50 carats each. The center stone is surrounded by a radiating halo of ten small round-cut accent stones, likely diamonds or high-quality cubic zirconia, set in individual yellow gold prongs. The mountings are crafted from yellow metal, presumably 10k or 14k yellow gold given the style, though no hallmarks are visible in the image. The construction utilizes a traditional post-and-butterfly backing, currently shown with clear plastic comfort clutches. The craftsmanship displays vintage characteristics consistent with jewelry from the late 20th century, approximately 1980-1990. The overall condition appears fair to good; there is some visible debris or oxidation around the prongs that may require professional cleaning. The stones appear securely set, though the clarity of the accent stones suggests they are either heavily included diamonds or synthetic stimulants. The dark, 'inky' blue of the main stones is characteristic of sapphires from specific regions or those that have undergone heat treatment. The earrings measure approximately 8mm by 10mm.

Based on my visual examination of these sunburst stud earrings, I estimate their fair market value between $450 and $650. The earrings feature oval-cut sapphires, approximately 1.00 carat in total weight, exhibiting a deep 'inky' blue saturation typical of Thai or Australian origins. The center stones are framed by twenty round accent stones. While these are styled as diamonds, their visible luster suggests they may be lower-grade promotional diamonds or high-quality stimulants; for this valuation, I have assumed 14k yellow gold and commercial-grade diamonds. The item displays 'fair' condition with noticeable oxidation and organic debris accumulation around the prong settings, suggesting frequent wear and a need for professional ultrasonic cleaning. The design is a quintessential 1980s-era aesthetic, which remains popular for its classic 'Princess Diana' style, maintaining steady demand in the secondary vintage market. The primary value drivers are the gold weight and the sapphire color, though the lack of visible hallmarks and the 'inky' tone—often indicative of heavy heat treatment—prevents a higher premium. Note: This appraisal is based strictly on photographic evidence, which has significant limitations. A definitive valuation would require in-person testing to confirm gold purity (via acid or XRF testing) and to distinguish the accent stones from laboratory-grown alternatives or CZ. Furthermore, a gemological laboratory report would be necessary to confirm if the sapphires are natural, synthetic, or treated with beryllium diffusion, which would dramatically alter the value. Provenance documentation or original sales receipts would assist in confirming the manufacturing timeline.