Vintage 10K White Gold PSCO Necklace and Earring Set, Black Onyx w/Diamonds

Vintage Pre-Owned in Very Good Condition, 10K Marked White Gold PSCO Necklace Pendant and Screw-Back Earring Matching Set, Black Onyx w/ Simulated Diamond Accent in Original Box Rare 10K White Gold cable chain, black onyx & simulated diamond accent pendant with matching screw-back black onyx & simulated diamond earrings. Beautiful elegant set. Screw-back earrings emerged in the early twentieth century, gaining significant popularity during the glamorous era of the 1940s and 1950s. This innovative fastening mechanism provided unprecedented security for precious antique earrings, making them particularly suitable for valuable gemstone pieces. The meticulous engineering of screw-back mechanisms reflects the sophisticated craftsmanship of the vintage era. These fastenings were especially popular in high-end pieces from the mid-twentieth century, often featured in important designer jewelry collections. Working clasp, these pieces may have some signs of wear due to the age. This elegant 10K white gold jewelry set features a stunning combination of silver and black, perfect for any occasion. The intricate design adds a touch of sophistication to your look.