This vintage necklace features an impressive mosaic-like opalescent stone. The top clasp is stamped with "333," indicating that K8 (8 karat gold) is used. Additionally, the clasp has a diamond-shaped mark with "SN" inside, which is likely a maker's mark or workshop stamp. The stone is designed with a crushed opal effect, composed of small fragments, and its appearance changes depending on the angle of light, which is its charm. This item was found during a house clearance, and although the exact purchase date and manufacturer details are unknown, it is a vintage piece that can be enjoyed as vintage jewelry based on the stamps and craftsmanship. 【Condition】 There are some scratches and dullness on the metal parts due to aging, but there is no noticeable damage. The clasp can be used without any problems. Please check the condition in the images. Recommended for those who like vintage accessories and gold jewelry.