ANTIQUE / VINTAGE PEARL CHOKER NECKLACE WITH PLATINUM, DIAMOND, AND GEMSTONE CLASP, choker-length knotted strand of 41 pearls, size ranging from 8.2 to 8.8 mm, platinum square-form tab-insert clasp having engraved decoration, pierced sides, and a safety lock, top set with a center greenish-blue cushion-cut gemstone, testing in the sapphire range, measuring approximately 6 x 6 mm, surrounded by 12 Old European-cut diamonds measuring approximately 2.2-2.5 mm in diameter, having an estimated total weight of 0.5 ct. Clasp unmarked and tested as platinum. First half 20th century. 16" L. 

Excellent overall condition with minor wear, clasp with center stone having spots of abrasions to top. Pearls having natural, as-made flaws. Stones and pearls not professionally graded.