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Marvella four-strand pearl necklace featuring a square, diamond-shaped centerpiece. The necklace is made of small, round, off-white pearls and has a tag attached with the "Marvella" brand name. The centerpiece appears to be silver or a similar metal, adorned with small, dark stones, possibly crystals or beads. Marvella was a brand known for costume jewelry, particularly faux pearls, during the mid-20th century.