AI Appraisal Estimate

A vintage jewelry set consisting of a long matinee-length pearl necklace and a pair of matching solitaire pearl stud earrings, presented in its original 'Kigu of London' velvet-lined display box. The necklace features approximately 90-100 uniformly round pearls, measuring roughly 6-7mm each, which exhibit a cream-colored body with subtle champagne overtones and a soft luster. The strand is professionally individually knotted on silk thread for safety and drape, terminating in a polished gold-tone or gold-filled rectangular filigree safety clasp. The matching earrings consist of similar-toned pearls mounted on post-style findings with friction backs. Based on the branding of Kigu of London, a firm historically known for high-quality powder compacts and costume jewelry accessories, these are likely high-grade glass-core simulated pearls ('majorica' style) or cultured pearls from the mid-20th century (circa 1950s-1970s). The overall condition appears excellent with no visible peeling of the nacre or significant fraying of the cord. The presentation box shows light external wear but the gold-stamped interior logo remains crisp and legible, indicating well-preserved provenance and care.

Upon examination of this Kigu of London pearl suite, I find it to be a remarkably well-preserved example of mid-20th-century costume jewelry. My visual assessment identifies a uniform, matinee-length strand with matching studs, characterized by a soft luster consistent with high-grade simulated pearls, likely featuring a glass or mother-of-pearl core. The presence of individual knotting and a gold-tone filigree safety clasp suggests a higher production tier within the costume jewelry market. The condition is labeled 'excellent' as the nacre shows no signs of the typical 'peeling' or yellowing often found in lesser synthetic pieces. Market demand for Kigu of London is currently driven by collectors of 'Great British' vintage brands. While Kigu is most famous for their engine-turned compacts, their jewelry sets are sought after for their classic 'New Look' aesthetic. Comparison with similar 1950s-60s boutique sets suggests a value range reflecting its superior presentation and the inclusion of the original branded velvet-lined box, which significantly enhances its provenance. Factors impacting value include the exceptional condition of the silk thread and the completeness of the set. However, there are limitations to this digital appraisal. Without a physical 'tooth test' or magnification of the drill holes, I cannot definitively distinguish between high-end glass-core simulated pearls and genuine cultured pearls of that era. Furthermore, an in-person inspection of the clasp for hallmarks (such as '1/20 12K GF' or '9ct') would be required to determine if the findings are gold-filled or solid gold, which would push the valuation toward the higher end of the spectrum.